Saturday, April 20, 2019

New mandible from Olorgesailie sheds light on Middle Pleistocene human evolution in Africa

Shara E. Bailey and Richard Potts
88th Annual Meeting of the American Association of Physical Anthropologists
March 27 – 30, 2019


Olorgesailie, Kenya, has previously produced a partial cranium dated to 0.97- 0.90 Ma, attributed to a small H. erectus individual. Subsequent excavations in 2017 uncovered additional fossil material in higher strata dated to ~0.615 Ma, consisting of a hemi-mandible comprising the complete left ascending ramus, a distal portion of the left mandibular corpus, and well-preserved M2 and M3. The specimen is designated KNM-OG 70780. Although African hominins of similar age are rare, closest in time and geographic proximity are mandibles from Baringo, Tighennif, and Sidi Abderrahman. Where comparisons are possible, the Olorgesailie mandible shares a number of morphological similarities with these specimens. These include a wide ascending ramus, lack of a retromolar space and, in one case, an asymmetrical mandibular notch. There are differences as well: the ascending ramus of OG 70780 is more vertical and thinner than the Baringo mandible BK 67; the anterior portion of the ascending ramus flares in OG 70780 but is more vertical in Tighennif, and the crest of the mandibular notch (CMN) of OG 70780 joins the condyle more medially whereas the CMN in BK 67 merges with the condyle at its lateral-most border. Dentally, the OG 70780 M2 is similar in size to the African Middle Pleistocene average, but is squarer. The M3 is smaller (especially mesiodistally) and more ovoid than the comparative sample. While the Olorgesailie mandible fits in with other African Middle Pleistocene hominins, it also exhibits features attributed to Neanderthals or, potentially, their common ancestor with Homo sapiens.

Friday, April 19, 2019

Hohlenstein-Stadel mitochondrial DNA and the “Middle Pleistocene Out of Africa Model”

Cosimo Posth and Johannes Krause
88th Annual Meeting of the American Association of Physical Anthropologists
March 27 – 30, 2019


Ancient DNA has revealed the inconsistency between nuclear and mitochondrial DNA (mtDNA) phylogenies of archaic and modern humans. It has been proposed that the closer similarity of Neandertal and modern human mtDNAs compared to Denisovans is the result of a Middle Pleistocene gene flow from Africa into Neandertals. However, the timing of this out of Africa dispersal into Eurasia is largely unknown. We report the complete mtDNA of a hominin femur (HST) displaying archaic features from the Hohlenstein-Stadel cave in southwestern Germany. HST represents a novel deeply divergent mtDNA lineage on the Neandertal branch showing substantial branch shortening. Using a Bayesian statistic framework we date the age of HST to ~124,000 years before present (BP) and its split time from all other Neandertal mtDNAs to ~270,000 years BP. Our analysis of the highly divergent HST indicates a larger Neandertal mtDNA diversity during the Middle Pleistocene, followed by a decline in the Neandertal effective population size. The HST mtDNA further allow us to constrain the boundaries for the time of the putative introgression event from Africa into Neandertals between 410,000 and 270,000 years BP. We show that over a large time interval a complete mtDNA replacement is plausible even if the introgressing lineage represented a minimal proportion of the initial gene pool.

Was Homo heidelbergensis in Africa?

Aurélien Mounier and Marta Mirazón Lahr
88th Annual Meeting of the American Association of Physical Anthropologists
March 27 – 30, 2019


Homo heidelbergensis was invented in 1908 by Otto Schoetensack, following the discovery and description of the hominin mandible from Mauer. Schoetensack considered the specimen to differ from the hominin remains known at the time – humans, Neanderthals and Homo erectus – and hence, named a new taxon. While Homo heidelbergensis was forgotten for most of the 20th century, it became, in the past thirty years, the focus of every debate regarding the common origin of Neandertals and modern humans.

Advances in genomics and in palaeoanthropology have now brought a consensus regarding the African common origin of both lineages in the early Middle Pleistocene, within the period 700,000 to 500,000 years ago, and this ancestor is generally referred to as Homo heidelbergensis. To use this species name a direct taxonomical link between its holotype, the Mauer mandible, and the specimens lumped into the taxon must be demonstrated.

Therefore, the first part of this study re-states the taxonomic link between Mauer and some of the Afro-European Middle Pleistocene fossil record, using an innovative methodology (phylogenetic modelling) to compute the possible mandibular morphology of an ancestor to modern humans and Neandertals. The results of these analyses strongly suggest that the ancestor, Homo heidelbergensis, was an African taxon. Using evolutionary scenarios drawn from the available genomic evidence, we explore the question of how to draw the boundaries between palaeo-species along evolving lineages by focusing on the Middle and Upper Pleistocene fossils of Homo sapiens and Homo neanderthalensis, or to their last common ancestor, Homo heidelbergensis.

Thursday, April 18, 2019

Assessing the status of Homo heidelbergensis through dental morphology and ancestral state reconstruction approaches

Aida Gomez-Robles
88th Annual Meeting of the American Association of Physical Anthropologists
March 27 – 30, 2019


Because it is often claimed that Homo heidelbergensis was the ancestral species to Neanderthals and modern humans, ancestral state reconstruction approaches are particularly apt to assess its status. Combining geometric morphometric analysis of dental variation and ancestral reconstruction approaches yields two fundamental results. Firstly, H. heidelbergensis does not show the expected dental morphology of the last common ancestor (LCA) of Neanderthals and modern humans. On the contrary, European specimens ascribed to H. heidelbergensis show Neanderthal dental affinities. Secondly, fossil specimens predating 700 ka are unlikely candidates to represent the Neanderthal-modern human LCA because they would have had to experience an extremely fast dental evolution to give rise to early Neanderthals. Together, these results imply that European specimens classically ascribed to H. heidelbergensis cannot be part of the Neanderthal-modern human last common ancestral species. Rather, those European specimens have to be either phylogenetically related to Neanderthals or part of a dead evolutionary lineage that is not related to Neanderthals or to modern humans. These results have two possible implications for the status of H. heidelbergensis. First and most likely, they can imply that H. heidelbergensis is not a valid taxon because it includes early representatives of the Neanderthal lineage in Europe (and, probably, of the modern human lineage in Africa). Second, they can imply that H. heidelbergensis is a distinct species if excluding from its hypodigm specimens with Neanderthal affinities, but that it had no further evolutionary continuity into Neanderthals or modern humans.

Wednesday, April 17, 2019

Revisiting Herto: New evidence and perspectives on Homo sapiens from Ethiopia

Yonatan Sahle, Yonas Beyene, Alban Defleur, Berhane Asfaw, Giday Woldegabriel, William K. Hart, Leah E. Morgan, Paul R. Renne, Joshua Carlson and Tim D. White
88th Annual Meeting of the American Association of Physical Anthropologists
March 27 – 30, 2019


Research at localities in the radioisotopically dated Upper and Lower Herto Members of Ethiopia’s Bouri Formation provides new data that complement and extend reports of fossils and artifacts first published by the Middle Awash research project in 2003. The new archaeological and paleontological data are from sediments dated to the later Middle Pleistocene, a time that witnessed the emergence of Homo sapiens anatomy, distinctive behaviors, and technologies traditionally characterized as the “Middle Stone Age.” Results of revisits to Herto reported here include the in situ recovery of a stone tool assemblage from the Upper Herto Member, from sediments deposited on the margin of a freshwater lake where large mammals were butchered ~160 ka. This spatially and stratigraphically controlled lithic assemblage includes artifacts normally typologically attributed to both African Acheulean and Middle Stone Age industries or technocomplexes. At Herto and elsewhere anatomical and technological change did not conform to simple, progressive “transition-to-H. sapiens” models. Rather, emergence of various attributes is now documented to have been temporally and spatially more complex than traditionally conceptualized. The Herto paleoanthropological record is an expanding paleoanthropological resource base that provides unique perspectives on human emergence in Africa. We evaluate several recent claims involving inferences derived from evidence made available by the Omo Kibish, Baringo Kapthurin, Olorgesailie, and Jebel Irhoud occurrences in light of our new archaeological data. In this way, the continuing Herto research contributes to elucidating the timing and patterns of technological, behavioral, and anatomical change in Africa during the evolution of our species.

Tuesday, April 16, 2019

Middle Pleistocene hominin systematics: Homo heidelbergensis, Homo sapiens, and the species concept revisited

Sheela G. Athreya
88th Annual Meeting of the American Association of Physical Anthropologists
March 27 – 30, 2019


Efforts at classifying Middle Pleistocene hominins are hampered by the lack of consensus as to how to weight geographical and temporal variation, phylogeny, and morphology. But because scientists are heterogeneous and differ about the species concept, there can be no global consensus. A shared taxonomy is mostly to achieve other goals, namely: 1) sharing language for transmission of ideas; 2) reflecting the consensus and diversity of interpretations; and 3) developing a classification that allows for inductive reasoning. I propose we shift our focus to these goals. I demonstrate how approaching Middle Pleistocene systematics through the interpretive framework of ethnobiology, which studies folk naming and classification systems, can yield better results. The focus is not on ascertaining “true” evolutionary relationships, but achieving these goals. I review published definitions of Mid-Pleistocene taxa and categorize them, following Berlin’s seminal 1973 work, into two levels of cognitive universals: the broader folk generic and more restrictive folk specific rank. The results demonstrate that our inability to define H. heidelbergensis is consistent with other examples of organisms that lack readily perceptible or universally recognized differences among observers. The level of patterning does not allow a folk-species-level distinction, but possesses what other societies name at the folk-generic level. In keeping with global naming systems we should refer to them according to their generic category, with modifiers (e.g., “Middle Pleistocene Homo”). Doing so is consistent with all other known taxonomic systems, with observed human capabilities of cognitive differentiation, and is both necessary and sufficient given the current data.

Friday, April 12, 2019

Native American origins: An interdisciplinary critique of current models

John F. Hoffecker, G R. Scott, Dennis H. O'Rourke, Mark A. Sicoli and Leslea J. Hlusko
88th Annual Meeting of the American Association of Physical Anthropologists
March 27 – 30, 2019

Most archaeologists currently entertain one of two models for the origin of the Native American population. These models postulate a source for Native Americans in Northeast Asia after the Last Glacial Maximum (LGM) or <18,000 years ago, either in the interior (i.e., Lena Basin) or the maritime zone (Hokkaido/Sakhalin/Primor’e). The pertinent archaeological data exhibit massive gaps, however, and accommodate a variety of alternative scenarios.

Most of the pertinent analyses in other disciplines cannot be reconciled with either of the current models in archaeology. Linguists observed decades ago that a post-LGM origin in NE Asia could not account for the diversity in Native American languages, and more recently, the same observation has been applied to the exceptionally high number of language isolates in the Americas. Working initially with mtDNA data, many human geneticists concluded that Native American lineages diverged from their Asian parent lineages before the LGM, and most whole-genome analyses (including aDNA) now indicate a similar pattern. The presence of traits found in SE Asian/Australian groups among South Americans can be reconciled with a post-LGM source in NE Asia only by postulating an early dispersal in the Americas (“Population Y”) for which there is little corroborating evidence.

Dental anthropology also provides support for pre-LGM divergence of all Native American groups from their Asian parent population. Analysis of a large sample of teeth for 24 morphological traits indicates a deep split between living Native American groups and their Asian source population, indicating a pre-LGM divergence.

Wednesday, April 10, 2019

A new species of Homo from the Late Pleistocene of the Philippines

Florent Détroit,
Armand Salvador Mijares,
Julien Corny,
Guillaume Daver,
Clément Zanolli,
Eusebio Dizon,
Emil Robles,
Rainer Grün &
Philip J. Piper

volume 568, pages181–186 (2019)
April 10, 2019


A hominin third metatarsal discovered in 2007 in Callao Cave (Northern Luzon, the Philippines) and dated to 67 thousand years ago provided the earliest direct evidence of a human presence in the Philippines. Analysis of this foot bone suggested that it belonged to the genus Homo, but to which species was unclear. Here we report the discovery of twelve additional hominin elements that represent at least three individuals that were found in the same stratigraphic layer of Callao Cave as the previously discovered metatarsal. These specimens display a combination of primitive and derived morphological features that is different from the combination of features found in other species in the genus Homo (including Homo floresiensis and Homo sapiens) and warrants their attribution to a new species, which we name Homo luzonensis. The presence of another and previously unknown hominin species east of the Wallace Line during the Late Pleistocene epoch underscores the importance of island Southeast Asia in the evolution of the genus Homo.

Tuesday, April 9, 2019

Some sessions from the Society of American Archaeologists Annual Meeting in Albuquerque, New Mexico, April 10 - 14, 2019

SAA 84th Annual Meeting
Albuquerque, New Mexico
April 10 - 14, 2019

Session Abstracts

Full Program

[1] Opening Session
(SAA President's Sponsored Session)

Room:  Kiva Auditorium
Time:  Wednesday, April 10th, 6:30 PM–8:30 PM
Moderators:  Alex Barker, Gordon Rakita and John Douglass

Discussant:  Joe Watkins
Discussant:  Luis Jaime Castillo
Discussant:  Arlen Chase
Discussant:  Margaret Conkey
Discussant:  Bonnie Pitblado

[2] General Session

Room:  130 Cimarron
Time:  Thursday, April 11th, 8:00 AM–9:30 AM
Chair:  Brea McCauley


8:00 Ronald Lippi—A History of the Yumbos, Barbacoan Peoples of Northwestern Ecuador
8:15 Enrique Moral—The Seraglio of the Great Turk: Ethnosexual and Engendered Violences in the Mariana Islands
8:30 Juliana Machado and Jozileia Daniza Kaingang—Women’s Territorialities within Indigenous Societies in Brazil: Past Discourses, Present Relations
8:45 Marcia Bezerra Almeida and Clarice Bianchezzi —Flowers and Sherds: The Practice of Collecting Artifacts in Brazilian Amazon
9:00 Brea McCauley, David Maxwell and Mark Collard—Upper Paleolithic Handprints with Missing Fingers: An Ethnological Perspective
9:15 Patrick Lee, Jamie Inwood, Samson Koromo, Lucas Olesilau and Julio Mercader—Quantitatively and Qualitatively Evaluating the Impact that PalaeoanthropologyMakes on the Lives of the Maasai People of Olduvai Gorge, Tanzania

[7] Forum

When the National Register (NR) eligibility criteria were crafted several decades ago, very little consideration was given toincorporating the cultural and spiritual values that indigenous peoples—more specifically, Native Americans, Alaska Natives and Native Hawaiians—attach to their respective significant places. These places include, but are certainly not limited to sites, features and landscapes. As a result, despite changes to the National Historic Preservation Act in 1992 and the publication of NR Bulletin 38, the evaluation and determination of eligibility for such places remains extremely problematic. Because the existing NR criteria do not, and cannot, encompass indigenous values and traditional knowledge, attempts to apply these criteria to indigenous significant places often contribute to adversarial relationships among consulting parties and place these criticalresources at increased risk of damage or destruction because they cannot be appropriately evaluated or determined eligible using the existing NR criteria. The forum will focus on the critical need for indigenous peoples to control the narrative when it comes to evaluating and determining the significance of their places of importance and why an Indigenous Values-Focused National Register (NR) eligibility criterion is therefore warranted.

Room: 60 Chaco
Time: Thursday, April 11th, 8:00 AM–10:00 AM
Moderators: Stephanie Stoermer and Jeani Borcher


Dianne Desrosiers—Discussant
Calvin Grinnell—Discussant
Emerson L. Bullchief—Discussant
Kelly Morgan—Discussan

[16] Symposium

The International Border between the United States and Mexico is a region fraught with political, economic, and social tensions—perhaps never more so than at our present point in history. In an effort to momentarily transcend those tensions (the byproduct of comparatively recent geopolitical boundaries), this symposium showcases recent explorations of the deep culture history of a portion of that border region, specifically that encompassing southwest Arizona and northern Sonora. For millennia this magnificent, yet austere, part of the Sonoran Desert has been a crossroads of numerous groups and cultural traditions—Hohokam, Patayan, Trincheras, O’odham, Apache, and others. Today, archaeologists and cultural preservationists on both sides of the Arizona-Sonora border continue to uncover and decipher facets of this deep and complex culture history, as this symposium demonstrates.

Room:17 Apache
Time: Thursday, April 11th, 8:00 AM–10:45 AM
Chair:  Andrew Veech


8:00  Andrew Veech—American Periphery, Sonoran Heartland: Recent Archaeological Explorations of Organ Pipe Cactus National Monument
8:15  John Carpenter and Guadalupe Sanchez Miranda—Resilience in an Arid Environment: Long-Term Climate Change and Human Adaptations in Sonora8:30Adrianne Rankin—Prehistoric and Historical Period Agricultural Strategies in the Western Papagueria: Archaeological and O'odham Perspectives
8:45  Elisa Villalpando and James Watson—Early Mortuary Traditions in the Arizona-Sonora Borderlands
9:00  Maren Hopkins, Michael Spears and T. J. Ferguson—O’odham Travel in the U.S.-Mexico Borderlands: Identifying Travel Routes on Organ Pipe Cactus National Monument
9:15  Jupiter Martinez—The Cocospera Valley in the Prehistoric, Protohistoric and Missión Period: A Corridor of Cultural Exchange?
9:30  Cheryl Blanchard—Transcending Boundaries and Exploring Pasts: Conservation Efforts on Public Lands near the Borderlands
9:45  César Villalobos—Los que viven donde sopla el verdadero viento: Bahía Tepoca, Sonora, Archaeology of the Coast in the Gulf of California
10:00  Jared Renaud—Developing a Condition Monitoring Plan for Archeological Sites at Organ Pipe Cactus National Monument
10:15  Lauren Kingston—Discussant
10:30  Randall McGuire—Discussant

[18] Symposium

This session examines the socio-spatial logic of late Andean settlements, where architectural preservation is often excellent, and considers how these logics varied across the highlands. These sites are typically large villages and towns of round houses that appear to have grown organically without apparent “order,” and they are sometimes described in terms of what they lack (public architecture, plazas, central planning, etc.) Here, we focus on how these spaces actively structured social, political, and economic organization. For example, what was the size and arrangement of social building blocks such as families, lineages, and largergroups? Over time, where did new generations and new arrivals settle and build? How did people move through the settlement as they went about daily tasks? What did they see, and what did they know about their neighbors? How were the dead placed in relation to the spaces of the living? Did communities continue previous traditions of socio-spatial organization and architectural construction, or did the foundation of new settlements entail the creation of new forms of order? What changed with the transition to Inca rule? This session aims to achieve a better understanding of these continuities and contrasts across late Andean societies of the highlands.

Room:  16 Acoma
Time:  Thursday, April 11th, 8:00 AM–10:45 AM
Chairs:  Elizabeth Arkush and Anna Guengerich


8:00  Elizabeth Arkush—Behind the Walls: LIP Architecture and Settlement Organization across the Peruvian Titicaca Basin
8:15  Alejandra Sejas Portillo—Conflict, Spatial Organization and Group Identity during the Late Intermediate Period in the Bolivian Southern Altiplano
8:30  Ryan Smith—An Alternative Pattern of Coalescence: A Study of Architecture and Organization at a Non-fortified, Pre-Inca Town in the Southern Highlands of Peru
8:45  Lauren Kohut—Constructing Difference: Defense, Sensory Experience, and Social Difference at a Late Prehispanic Hillfort (Arequipa, Peru)9:00Steve Kosiba and Bruce Mannheim—Ancient Andean Scalarity
9:15  Darryl Wilkinson—Neither Up nor Down? The Late Intermediate Period Occupation of the Andes-Amazonia Frontier in Southern Peru
9:30  Manuel Perales—Where Are the Cinchecona? Mortuary Architecture and Socio-political Organization in Jauja, Peru, during the Late Intermediate Period9:45Alexis Mantha—Contrasting Use of Space among Neighbors: Puna versus Quechua/Suni Residential Settlements of the Rapayán/Tantamayo Region during the LIP
10:00  Anna Guengerich—Houses and the Puzzle of “Public Space” in Ceja de Selva Communities of Northeastern Peru
10:15  Jerry Moore—Discussant
10:30  Questions and Answers

[33] Symposium

Coastlines and islands are hypothesized to have been critical in our species’ earliest migrations out of Africa as well as the initial colonization of the New World. A wealth of archaeological evidence reflects the importance of these dynamic environments for past human societies, yet interpretation of behavior continues to rely on theoretical models developed based on terrestrial foraging behavior. In this session, we ask discussants from around the world to consider if/how human behavioral adaptations may vary with respect to the unique conditions, constraints, and context of Coastlines. Local case studies presented will offer insight on current conceptualizations of coastal and maritime adaptations. Participants will collaboratively take on development of theoretical concepts that engage the unique trajectory of social, political, and demographic feedbacks connected to coastal settings such as settlements, procurement, and exchange. Our goal is to identify and remedy potential conceptual gaps in the application of existing theoretical models when applied to habitation of coastal settings and use of their resources. Critical topics include the unique challenges faced by coastal and maritime societies, including: ecological risks and resilience of coastal environments, economic balance between coastal and terrestrial resource needs, technological innovation and transmission of knowledge, among others.

Room:  115 Brazos
Time:  Thursday, April 11th, 8:00 AM–12:00 PM
Chairs:  Heather Thakar and Carola Flores-Fernandez


8:00  Catherine F. West and Ben Fitzhugh—Human Behavioral Ecology and the Complexities of Arctic Foodways
8:15  Hiroto Takamiya, Takeji Toizumi and Taiji Kurozumi—Coastal Resource Use during the Prehistoric Times in the Amami and Okinawa Archipelagos, Japan8:30Shannon Tushingham—Archaeology and Behavioral Ecology of Maritime Hunter-gatherers of the Northeast Pacific Rim
8:45  Jessi Halligan—Coastal Paleoindians in the Southeastern US? Envisioning Early People on the Now-Drowned Continental Shelves
9:00  Javier Fernanddez-Lopez De Pablo and Elodie Brisset—Central Place Foraging Models and Early Holocene Coastal Adaptations in the Western Mediterranean
9:15  Genevieve Dewar and Brian Stewart—Foragers, Herders and Harvesters: Modeling Shifts in Late Holocene Subsistence Strategies on South Africa’s West Coast
9:30  Colin Wren, Curtis Marean, Eric Shook, Kim Hill and Marco Janssen—What Makes a Forager Turn Coastal? An Agent-Based Approach to Coastal Foraging on the Dynamic South African Paleoscape
9:45  Questions andAnswers
10:00  Douglas J. Kennett—Discussant
10:15  John Crock—Maritime to the Max: The Keys to Success for Small Island Populations in the Caribbean
10:30  Hector Neff—Holocene Human Adaptations on the Pacific Coast of Central America
10:45  Paulo DeBlasis and Maria Dulce Gaspar—The People of the Lagoon: Sambaquis and Ecological Management on the Southern Brazilian Coast
11:00   César Méndez and Amalia Nuevo Delaunay—Assessing Shellfish Discard for
Discerning between Field Processing or Residential Relocation in the Subtropical Pacific Coast of South America
11:15  Diego Salazar and Carola Flores-Fernandez—Swordfish Hunting as Prestige Signaling within Middle Holocene Fishing Communities of the Atacama Desert Coast?
11:30  Manuel J. San Román, FlaviaMorello Repetto, Victor Sierpe, María José Barrientos and Jimena Torres—From the Forest to the Steppe: Mobility Strategies of Late-Marine Hunters (Alacaluf) in the Strait of Magellan, Chile
 11:45  Daniel H. Sandweiss—Discussant

[38]  Symposium

This year (2019) marks the 40th anniversary of the publication of the seminal work by William Sanders, Jeffrey Parsons, and Robert Santley, The Basin of Mexico: Ecological Processes in the Evolution of a Civilization. The seminal nature of the book lies in its innovative approaches to understand the linkages between demographic growth, settlement location, social and political complexity, and both anthropogenic and nonhuman induced environmental processes. The paradigms and approaches that the book proposed framed the way archaeologists and other scientists have approached the evolution of society and environment is approached in the Basin of Mexico. This symposium aims at bringing together archaeologists and scientists devoted to the study of paleoenvironments to discuss the book’s legacy and to share subsequent and recent advances in the understanding of the processes that The Basin of Mexico tackled at its time. It intends to build on the multi-disciplinary spirit of the book to bring together archaeologists, anthropologists, ethnohistorians, and scholars working on environmental reconstructions of the basin. We also encourage researchers whose scope of study has sought to go even deeper into the past and to more recent periods in the area’s history.

Room:  270 Ballroom C
Time:  Thursday, April 11th, 8:00 AM–12:00 PM
Chair:  Carlos Cordova
8:00  Deborah Nichols—The Evolution of a Revolution: “The Basin of Mexico: Ecological Processes in the Evolution of a Civilization” 
8:15  Silvia Gonzalez, Samuel Rennie and David Huddart—Paleoindians from the Basin of Mexico: How Do They Fit in the Early Peopling of the Americas?
8:30  Elizabeth Solleiro-Rebolledo, Georgina Ibarra and Sergey Sedov—The Role of Pedogenesis in Palaeosols of Mexico Basin and Its Implication in the Paleoenvironmental Reconstruction 
8:45  Carlos Cordova—Long and Short-term Lacustrine and Fluviolacustrine Dynamics in Relation to Prehistoric Settlements: The Case of Lake Texcoco
9:00Isabel Rodríguez López and Aleksander Borejsza—From Tlacolol to Metepantle: A Reappraisal of the Antiquity of the Agricultural Niches of the Central Mexican Symbiotic Region
9:15  Mari Carmen Serra Puche—“The Basin of Mexico: Ecological Processes in the Evolution of a Civilization” y nuestras excavaciones en el Sur de la Cuenca de Mexico
9:30  Dan Healan—Interaction between the Basin of Mexico and West Mexico in the Prehispanic Era
9:45  Charles Kolb—In the Beginning: TVP and TMP—Reflections on the Classic Teotihuacan Period Survey in the Teotihuacan Valley, 1962-1964 
10:00  Sarah Clayton and Michelle Elliott—Urban Growth and Land Use at Chicoloapan, an Epiclassic Town in the Southern Basin of Mexico
10:15  Guillermo Acosta-Ochoa, Emily McClung de Tapia, Laura Beramendi-Orosco, Diana Martinez-Yrizar and Galia Gonzalez-Hernandez—Prehispanic Chinampas at El Japón, Xochimilco: Structure and Chronology
10:30  Kristin De Lucia—Household Lake Exploitation and Aquatic Lifeways in Pre-Aztec Central Mexico
10:45  John K. Millhauser—Slow Violence and Environmental Inequality in the Valley of Mexico
11:00  Larry Gorenflo—Twentieth Century Settlement Patterns in the Basin of Mexico: In Search of Pre-Colombian Roots for Regional Demography and Land Use
11:15  Patricia Fournier and Cynthia Otis Charlton—Basin Enterprise: The Next Generations
11:30  Jeffrey Parsons—Discussant
11:45  Emily McClung de Tapia—Discussant

 [41] General Session:

Room:  130 Cimarron
Time:  Thursday, April 11th, 10:00 AM–12:00 PM
Chair:  Matthew Rooney


10:00  Jonathan Roldan, Makayla Whitneyand Taylor Picard—Language as a Cultural Resource: A Case Study with the Tolowa and Hupa Languages
10:15  Paul Reed—Pueblo of Acoma Ethnographic Study of the Greater Chaco Landscape
10:30  Christina Bisulca, Marilen Pool and Nancy Odegaard—Indigenous Use of Mesquite Exudates in Arizona
10:45  Matthew Rooney—Chickasaws and Presbyterians: What Did It Mean To Be Civilized?
11:00  Kong Cheong—The Pickett’s Mill Farmstead: An Archaeology of the Inarticulate Whites
11:15 Grant McCall and Russell Greaves—The Ethnogeology of Sedimentation and Land Formation in the Lower Mississippi Delta of Plaquemines Parish, Louisiana
11:30 Niklas Schulze and Luis Barba —Pyrotechnology in the Ethnohistoric and Archaeological Record of Prehispanic Mexico
11:45 Erik Stanley—Indigenous Interpretations of the Past

[51]  General Session

Room:  60 Chaco
Time:  Thursday, April 11th, 10:45 AM–12:00 PM
Chair:  Heather Smith


10:45  Michael Faught—Some Thoughts on “Clovis”: Where Were They From, Where Did They Go, Where Do They Fit in the Peopling of the Western Hemisphere
11:00  David Thulman and Brendan Fenerty —Clovis Points Were Likely Knives: An Evaluation of the Evidence
11:15  James Norris and Metin Eren—Early-and Middle-Stage Fluted Stone Tool Bases: Further Evidence they are not Diagnostic of Clovis
11:30  Hannah Robinson—Clovis Technology on the Southern Colorado Plateau: AnAnalysis of the Glen Quarry Locality
11:45  Heather Smith and Brendon Asher —Variability in Clovis Biface Morphology from the Type-site, Blackwater Draw Locality 1

[56]  Symposium

Room:  270 Ballroom C
Time:  Thursday, April 11th, 1:00 PM–2:45 PM
Chairs:  Christopher Morehart and Charles Frederick


1:00  Destiny Crider—Advances in theStudy Archaeological Ceramics of the Epiclassic-Early Postclassic Basin of Mexico
1:15  Joaquín Arroyo-Cabrales, Eduardo Corona-Martínezand Felisa J. Aguilar-Arellano—Late Pleistocene-Early Holocene Archaeozoology and Paleontology at the Basin of Mexico:A Reappraisal 40 Years after Early Views
1:30  Abigail Meza-Peñaloza and Federico Zertuche—Comparison by Non-Metrical Traits of Xaltocan's Shrine vs. Teotihuacan in Mexico by Using a Non-metric Multidimensional Scaling Method
1:45  Philip Arnold and Wesley Stoner—Taking It to the Tuxtlas: How the BoM Survey Shaped Gulf Lowland Settlements
2:00  Christopher Morehart, Angela Huster, Dean Blumenfeld, Rudolf Cesaretti and Megan Parker—Between Two Empires: Conflict and Community during the Epiclassic Period in the Northern Basin of Mexico
2:15  Charles Frederick—What Lies between the Dots: Exploring the Archaeology of the Broader Basin of Mexico Landscape
2:30  Deborah Nichols—Discussant

[70] Symposium

This symposium presents current research on the social and political organization of fisher-hunter-gatherer communities that occupied coastal and riverine locations in North America. In particular, papers focus on groups that were politically complex, maintained institutional inequality, or organized themselves in unexpected ways. Archaeology, ethnography, and historic records have all documented instances of such non-agrarian coastal groups, and while these developments are not entirely unique to coastal foragers, access to aquatic resources and avenues of transportation can have dramatic effects on social trajectories. Paradigms for evaluating complexity and social organization can vary regionally because of substantive differences among casestudies, and because of the influence of distinct research traditions. This session brings scholars of North American fisher-hunter-gatherers in conversation with one another, with the broader aims of examining those paradigms we use for investigating social organization, untangling criteria of categorization, and comparing regional histories.

Room: 25 Navajo
Time: Thursday, April 11th, 1:00 PM–3:45 pm
Chair: Christina Sampson


1:00 William Marquardt—Are the Calusa Unique? Environmental Stewardship and Historical Contingency in the Pacific Northwest and Southwest Florida
1:15 Scott Sunell and Christopher Jazwa—The Development of Sociopolitical Complexity among Chumash Hunter-Gatherer-Fishers on California’s Northern Channel Islands
1:30 Christina Sampson—Trade, Tradition, and Rivalry: Late Pre-Columbian Craft and Exchange on the Central Peninsular Gulf Coast of Florida
1:45 Chris Springer and Dana Lepofsky—Conflict and Territoriality: An Archaeological Study of Ancestral Northern Coast Salish-Tla’amin Defensiveness in the Salish Sea Region of Southwestern British Columbia
2:00 Thomas Pluckhahn, Victor Thompson, Isabelle Lulewicz, Trevor Duke and Matthew Compton—Selfish for Shellfish, or Magnanimous about Mollusks? The Transformation of Cooperation across the First Millennium CE at Crystal River and Roberts Island, Florida, USA
2:15 Nathan Goodale, Anna Prentissand Alissa Nauman—Bayesian Models for the Occupational History of Complex Hunter-Gatherer-Fisher Communities in the Interior Pacific Northwest
2:30 Matthew Sanger, Mark Hill, Gregory Lattanzi and Brian Padgett—Networks of Exchange in the Late Archaic Southeast: Copper and Crematory Practices=
2:45 Jennifer Perry and Mikael Fauvelle—Inter-Island Material Conveyance and Exchange on California’s Channel Islands
3:00 Ginessa Mahar and Kenneth Sassaman—Stop Seeing Like a State: Relational Complexity among Small-Scale Societies of Gulf Coastal Florida (Who Routinely Gathered in Large Numbers)
3:15 Colin Grier—Discussant3:30Questions and Answe

[73] Symposium

With the increasing accessibility of AMS radiocarbon dating and Bayesian chronological modeling, archaeologists working in Northeastern North America have increasingly shifted focus toward testing long-held understandings about the timing and tempo of the profound cultural changes enacted by Iroquoian and other Woodland-period societies. This session brings together scholars whose work aims to revise chronological understandings of socio-cultural change, migration, and exchange throughout the northeast in the Precolumbian and contact periods. Members of Dating Iroquoia, a multi-year, NSF-funded project, present in detail the methodology, results, and implications of more than 200 new AMS dates on six community relocation sequences in Southern Ontario and New York State. Participants are specifically asked to consider the impact of these new radiocarbon-based chronologies on current understandings of sociocultural transformation in the study region as it relates to processes of settlement aggregation and community coalescence; inter- and intra-group conflict; the formation of ethnohistorically-known nations and confederacies; and interaction and exchange between Indigenous peoples and between Indigenous groups and Europeans. This session intentionally bridges American and Canadian research traditions, as well as prehistoric and historic archaeologies, to arrive at new, absolute chronologies that permit enhanced understandings of the lived experience of cultural change in the northeastern woodlands.

Room: 19 Isleta
Time: Thursday, April 11th, 1:00 PM–3:45 PM
Chairs: Megan Conger and Samantha San


1:00 Sturt Manning—Radiocarbon and Historical Archaeology in Iroquoia: Bringing Near-Calendar Dating Precision to Iroquoian Chronology with Radiocarbon –Methods, Issues and Potential
1:15 Jennifer Birch—Major Implications of the Dating Iroquoia Project: Rethinking Coalescence, Conflict, and Early European Influences in the Lower Great Lakes Region
1:30 Megan Conger—Telling Localized Indigenous Histories of Trade through AMS Dating and Bayesian Chronological Modeling in Southern Ontario, Canada1:45Samantha Sanft—Timing the Circulation of Nonlocal Materials in Seneca-and Onondaga-Region Sites
2:00 Timothy Abel, Jessica Vavrasek and John Hart—Radiocarbon Dating the Iroquoian Occupation of Northern New York
2:15 Roland Tremblay and Christian Gates-St-Pierre—Struggling with Radiocarbon Dates at the Dawson Site in Downtown Montréal
2:30 Ronald Williamson and Peter Ramsden—Time, Space and Ceramic Attributes: The Ontario Iroquoian Case
2:45 James Conolly and Daniel Smith—An Updated Radiocarbon Chronology of the Middle to Late Woodland Transition in Southern Ontario: Regional Variation in the Dynamics of Cultural Change
3:00 Questions and Answers
3:15 Gary Warrick—Discussant
3:30 Kurt Jordan—Discussant

[74] Symposium

For the past several decades, rapidly increasing amounts of excavation data and new interpretations have characterized Japanese archaeology. Numerous rescue excavations throughout the Japanese archipelago during and after the 1970s have produced a large body of archaeological data, based on which scholars can test new hypotheses and assert the importance of studying the past. Interest in archaeology among the general public is strong. The flip side of the popularity of Japanese archaeology is a large-scale destruction of many important archaeological sites. It is also clear that there will be fewer rescue excavations in the future. With these sociopolitical contexts in mind, the 2019 Archaeological Research in Asia Sponsored Symposium highlights new developments and challenges in Japanese archaeology and evaluates its contribution to the international scene. Papers presented in this session present new data and interpretations and address the questions of the relevance of archaeological studies in contemporary Japanese society. The session also proposes how archaeologists working on Japan might engage themselves with current sociopolitical and environmental concerns through their research. Case studies include those dealing with the Paleolithic, Jomon, Yayoi, Kofun and later historic periods. Geographic coverage includes from Hokkaido to the Ryukyu Islands.

Room: 22 San Juan
Time: Thursday, April 11th, 1:00 PM–4:00 PM
Chair: Junko Habu


1:00 Junko Habu—Long-Term Perspectives on the Resilience of Food and Socioeconomic Systems in Prehistoric Japan: Examples from the Early and Middle Jomon Periods
1:15 Fumiko Ikawa-Smith—Changing Perspectives for the Palaeolithic Research of the Japanese Archipelago
1:30 Simon Kaner—Stories from the Riverside: Metastability in the Shinano-Chikuma River System, Central Japan
1:45 Liliana Janik—New Approaches to Jomon Dogu: Case Studies from Eastern and Western Japan
2:00 Gary Crawford and John Whitman—New Research Directions in the Archaeology and Linguistic History of the Hokkaido Ainu
2:15 Kaishi Yamagiwa and Hiroto Takamiya—Transition from Hunting-Gathering to Agriculture in Amami and Okinawa Archipelagos, Japan
2:30 Scott Lyons—Historical Ecology and Archaeometallurgy on the 5th and 6th century Osaka Plain
2:45 Kazuaki Yoshimura—A Study of the Armor Production System in the Middle Kofun Period
3:00 Carl Gellert—From the Earthly to the Celestial: Material Culture and Funerary Practice at Fujinoki Kofun
3:15 Marjorie Burge—The Study of Excavated Documents in Japan
3:30 Koji Mizoguchi—Collapse, or Drastic Socio-cultural Transformation?: Some Cases from Japanese Prehistory

[92] General Session

Room:  220 Ruidoso
Time:  Thursday, April 11th, 3:00 PM–4:30 PM
Chair: Heather Smith


3:00  Cornel Pop—Lithics3D: An R Package for Lithic Analysis
3:15  Neil Dixon, M. Kathryn Brownand Leah McCurdy—RTI Photography Part of a Greater Whole in Archaeological Documentation Methodology
3:30  Sjoerd Van Der Linde—Putting the Soul into Archaeology—Integrating Interpretation intoPractice
3:45  Oliver Boles, Emily Hammer and Kathy Morrison—Pastoralism and Anthropogenic Land Cover Change (ALCC) Mapping
4:00  Robin Skeates—Sensory Archaeology: Key Concepts and Debates
4:15  Heather Smith and Metin Eren—Rock Music: The Sounds of Flintknapping

[93] Forum

Successful repatriation processes require partnerships between descendant communities and the museums and/or agencies that have custody and/or legal control of Native American human remains, funerary objects, sacred objects, and objects of culturalpatrimony. This is true whether repatriation is pursuant to federal law or state statutes. In Arizona, partnerships born of ongoing dialog and based on mutual trust and respect have resulted in many successful repatriations. In this forum, representatives of Arizona tribes and museums, as well as a federal agency, will discuss the results of recent repatriation work, from their different perspectives, focusing on how they have worked together in the past to solve problems and highlighting the major stumbling blocks that remain. Discussants will examine the role of flexibility and the importance of prioritizing outcomes in balancing legal requirements with the needs and values of descendant communities. In some cases, the way forward has necessitated a re-examination of the spirit of the law relative to the letter of the law, and novel approaches have emerged. The discussants hope to share their experiences and also to learn from those in attendance who choose to engage.

Room: 270 Ballroom C
Time: Thursday, April 11th, 3:00 PM -5:00 PM
Moderators: Patrick Lyons and Vernelda Gran


Shane Anton—Discussant
Claire Barker—Discussant
Garry Cantley—Discussant
Angela Garcia-Lewis—Discussant
Vernelda Grant—Discussant
Stewart Koyiyumptewa—Discussant
Patrick Lyons—Discussant
John McClelland—Discussant
Kimberly Spurr—Discussant
Lindsey Vogel-Teeter—Discussant

[96] Symposium

Ancient medicine and healing is a robust field of study which, in many parts of the world, combines archaeological data with the analysis of ancient texts from contemporaneous periods. In the Americas, however, archaeologists often rely on the work of ethnohistorians, ethnographers, and colonial historians to interpret archaeological data related to medicine and healing. The aimof this session is to foster a dialogue among archaeologists and ethnohistorians who study diseases, healing, and medical care in past societies. It is our hope that such discussion will reinforce the mutually beneficial potential of archaeological and ethnohistorical collaboration on the topic of ancient medicine. Topics of interest include the relationship between the healer and the healed, the material culture of healing and its interface with the human body, the etiology of disease and sickness, and indigenous cosmologies and perspectives on healing and medicine. This multi-regional and interdisciplinary session will also critically appraise the multiple meanings attributed to “healing” at both macro and micro social scales. Although Pre-Columbian and historic periods in the Americas are the primary focus, the diversity of perspectives, methods, and theories applied here impacts understandings of illness, its treatment, the human body, and healing-based practices across the globe.

Room: 235 Mesilla
Time: 3:15 PM–5:00 PM
Chairs: Joshua Schnell and Mark Agostini


3:15 Joshua Schnell—Patients and Practitioners: Archaeological and Ethnohistorical Approaches to Ancient Medicine and Healing Practices in the Americas
3:30 Mark Agostini and Robert Weiner—When Is Healing?: An Archaeological Case Study of the Chacoan and Post-Chacoan American Southwest
3:45 Nicholas Laluk and Mae Burnette—We Know Who We Are and What Is Needed: Achieving Healing, Harmony and Balance in Ndee Institutions
4:00 William Whitehead—Medicinal Plant Use in Southeast New Mexico: Botanical, Ethnobotanical and Archaeological Evidence
4:15 Sarah Watson, Joshua Schnell, Shanti Morell-Hart and Andrew Scherer—Health Care in the Marketplace: Exploring Medicinal Plants and Practices at Piedras Negras
4:30 Ryan Hechler—Born This Way, Becoming That Way: Difference, Disability and Sicknessin Inka Society
4:45 Ryan Kashanipour—Discussant

[144] Symposium

Neanderthals faced environmental and climatic instability during the Pleistocene that may have influenced their subsistence, technology, behavior and survival. Research assessing the effect of climate and environment on the Middle Paleolithic has often turned to southern Europe, specifically peninsular southern Europe. These are regions typically regarded as refugia during periods of unfavorable climatic conditions, inspiring numerous paleoenvironmental studies at Neanderthal sites and hypotheses on late Neanderthal survival in locations with relatively ameliorated conditions.

This session will focus on assessing the peninsulas of southern Europe as refugia during periods of unfavorable climate during the Middle Paleolithic and transition to Upper Paleolithic. Contributors to this session will address questions such as: did Southern European peninsulas (Iberia, Italy, Balkans) really act as refugia during periods of deteriorating environmental change? Were those peninsulas active refugia or “sanctuaries” (locations with favorable environmental conditions and rich in resources that were actively procured) or just passive refugia (areas of species retention or survival relative to surrounding regions)? Overall, this session will shed light on Neanderthal adaptations to environmental change and contribute to a better understanding of southern European peninsulas as refugia during the Late Pleistocene.

Room: 210 Tijeras
Time:Thursday, April 11th, 6:00 PM–8:00 PM
Chairs: Milena Carvalho and Nuno Bicho


6:00 Lawrence Straus—Discussant
6:15 Effrosyni Roditi and Britt Starkovich—Were Neandertals the Original Snowbirds? Zooarchaeological Evidence from Greece
6:30 Keiko Kitagawa, Dario Massafra and Filomena Ranaldo—Neanderthals in Porto Selvaggio, Southern Italy
6:45 Cristina Real, Carmen María Martínez-Varea, Yolanda Carrión and Ernestina Badal—Human Adaptability to Fauna and Flora Changes during MIS 5-3. Is the Iberian Mediterranean Region a Refuge?
7:00 Pedro Horta, Joao Cascalheira and Nuno Bicho—Neanderthal Ecological Niche in Iberia’s Southwestern Edge: New Data from the Gruta da Companheira Site
7:15 Jonathan Haws—Late Pleistocene Refugia and Neanderthal Extinction in Southern Iberia
7:30 Milena Carvalho, Emily Lena Jones, David Meiggs and Jonathan Haws—A Stable Isotopes Analysis of Ungulate Remains from Lapa do Picareiro: An Assessment of Refugia Concepts during the Middle Paleolithic and Transition to Upper Paleolithic
7:45 Joao Cascalheira, Célia Gonçalves and Nuno Bicho—Assessing the Spatial Patterning of Middle Paleolithic HumanSettlement in Westernmost Iberia

[147] General Session

Room: 25 Navajo
Time: Thursday, April 11th, 6:00 PM–8:00 PM
Chair: Andrea Kruse


6:00 Luc Litwinionek, Stance Hurst and Eileen Johnson—Islands on the Plains Revisited: GIS-Based Predictive Models of Playa Use on the Southern High Plains
6:15 Douglas MacDonald and Matthew Nelson—The Role of Geomorphology and GIS in the Identification of Paleoindian Archaeological Sites at Yellowstone Lake, Wyoming, U.S.A.
6:30 Kelly Morgan—The Significance of Stone Features on the Northern Plains: Criteria A-D and Other Issues
6:45 Andrea Kruse—A Great Plains Early Archaic Site Understanding from Lithic Debitage Analysis
7:00 Shannon Koerner and BrettonGiles—An Assessment of Central Plains Tradition Ceramic Variation in the Flint Hills Region of the Eastern Plains, USA
7:15 Jason LaBelle—Of Hearth and Home: Investigating Site Structure at the Fossil Creek Site, an Early Ceramic Camp in Larimer County, Colorado
7:30  Travis Jones—Huff Village Revisited: A New Radiocarbon Chronology for a Pivotal Time
7:45  Reid Farmer, Jon Kentand Allan Koch—Current Research at Cherokee Mountain Rock Shelter, Douglas County, Colorado

[149] Symposium

The conjunction of social justice and anti-discrimination movements like Black Lives Matter and #MeToo has been hailed as a watershed moment for historically marginalized people. Archaeology has likewise felt the reverberations of these broader political movements. Consider, for example, recent discussions of fieldwork and harassment, as well as meditations on the potential impact of the current political climate on archaeology worldwide and efforts to define inroads made by—and future avenues for—social justice in archaeology. This session builds upon this moment in time by considering the current status of underrepresented groups—women, queer people, people of color, disabled people, low-income people, &c. (as well as those whose identities cross-cut these categories)—in archaeology, both academic and professional. Papers will touch upon various forms of discrimination and harassment, including bias in the workplace, intimidation and/or assault in the field, inequities in publication practices, ethical public engagement, the role of activism in archaeology, and other related topics. We are particularly interested in concrete solutions to discrimination at a variety of scales—from day-to-day interactions to fieldwork best practices, in addition to the little-explored (but exceedingly important) topic of structural and institutional discrimination. This session dovetails with the round table discussion on #metoo in archaeology.

Room: 280 Ballroom A
Time: Thursday, April 11th, 6:00 PM–8:15 PM
Chairs: Lindsay Der, Anne Duray and Thea De Armond


6:00 Dillon Gisch—Images of Aphrodite, Sexual Desire, and the 'Chilly Climate' of Classical Archaeology
6:15 Thea De Armond—Drawing the Line: Does Sexual Harassment Training Work?
6:30 Rebecca Gibson—Representation Matters: Disabled Professorship and a Move Toward a Higher Standard of Accessibility in the Office and the Field
6:45 Elizabeth Hannigan and Laura Heath-Stout—Affording Archaeology: How the Cost of Field School Keeps Archaeology Exclusive
7:00 Kate Kreindler—Having It All in the Field: Families, Inclusivity, Career Development, and Archaeological Fieldwork
7:15 Catherine Jalbert—“The Chilly Climate Is Not Warming as the Old Guys Leave”: Identity-Based Discrimination in Archaeology, an Example from Canada
7:30 Lindsay Der, Thea De Armond and Anne Duray—From Margin to Center: Bias and Discrimination in Archaeology
7:45 Chelsea Blackmore—Discussant
8:00 Questions and Answers

[150] Symposium

Navajo people have been directly involved in archaeology since Richard Wetherill hired his first excavation workers at Chaco Canyon in the late 1800s. More than a century later, however, it's clear that relatively few studies have attempted to incorporate the Navajo archaeological record into broader anthro-historical discussions. Indeed, “mainstream” Puebloan-focused Southwestern archaeology has long promoted a marginalized view of Navajo culture/history with little input from Diné people themselves. Developing archaeological projects that look beyond acculturation and migration in order to highlight the complexity of Diné society prior to and following the onset of Euro-American colonialism in the Southwest is the only way to correct this imbalance. As this session demonstrates, such a movement is underway. Where once non-Native archaeologists working within CRM frameworks conducted the majority of Navajo-focused research, a new generation of Diné archaeologists are now conducting their own studies. Drawing upon diverse methodological and theoretical influences, these projects combine earlier research with traditional Diné knowledge and new archaeological data to explore a variety of questions. These papers showcase current research by Diné archaeologists who are committed to understanding past Navajo experiences in the Southwest and extracting lessons relevant to the continuation of Diné culture in the 21st century.

Room: 240 La Cienega
Time: Thursday, April 11th, 6:00 PM–8:15 PM
Chair: Wade Campbell


6:00 Kerry Thompson—Held Hostage by a Paradigm
6:15 Timothy Wilcox—Diné łe’saa łitsxo bik'ah dash chá’ii dajíi la: Navajo Gobernad Polychrome Pottery
6:30 Alicia Becenti—A Zooarchaeological Analysis of Diné Hunting Traditions
6:45 Wade Campbell—Na’nilkad béé na’niltin: The Early Navajo Pastoral Landscape Project (Phase 1) –Experimental Ethnoarchaeology on the Navajo Nation
7:00 Davina Two Bears—ResearchingMy Heritage: The Old Leupp Boarding School Historic Site and Navajo Survivance
7:15 Rechanda Lee—'ASHŁ’Ó YÓHOOŁ’AAH (Learning to Weave): The Cultural Transmission of Technological Style in Navajo Textiles
7:30 William Tsosie—Discussant
7:45 Ronald Towner—Discussant
8:00 Richard Begay—Discussant

[156] Symposium

Increasing data from archaeological fieldwork coupled with interdisciplinary analytical and theoretical applications have opened new discourses on hunter-gatherers, agriculturalists, egalitarian and complex societies in prehistoric Korea. As both a receiving end of the agricultural dispersal and a possible center of some crop domestication, Korean archaeology can contribute to the global discussions of hunter-gatherers and farmers’ interactions leading to the emergence of state-level societies. The papers in this session broadly cover South Korea from the beginning of the Neolithic to early historical periods. Cross-disciplinary research applications present new data and perspectives on diet changes, human-environment interactions, labor cooperation, commodity exchange, and early agricultural development in prehistoric Korea. The goals of the present session are to synthesize recent understandings on diversity and dynamics of economic strategies among various prehistoric societies in Korea, and then discuss the new challenges and future direction of research

Room:120 Dona Ana
Time: Thursday, April 11th, 6:00 PM–8:15 PM
Chair: Ha Beom Kim


6:00 Seungki Kwak—Subsistence Strategy, Pottery Use, and the Role of Animal Hunting on the Neolithic Korean Peninsula
6:15 Hyunsoo Lee—Early-Middle Holocene Resource Use and Niche Construction in Jeju Island, Korea
6:30 Geun Tae Park, Chang Hwa Kang and Jae Won Ko—Subsistence Economy and Paleoenvironment of Neolithic Islanders in Jeju, Korea
6:45 Gyoung-Ah Lee—Sustained Farming in the Nam River Valley, South-central Korea, through the Mumun/Bronze to Early Historical Periods
7:00 Questions and Answers
7:15 Ha Beom Kim and Sook-Chung Shin—Examining Recent Archaeological Findings at the Bronze Age Korean Settlement of Jungdo Using an Economic Perspective
7:30 Rachel Lee, Martin Bale and Jade D'Alpoim Guedes—Assessing Agricultural Strategies in Prehistoric Korea through Climate and Landscape Models
7:45 Rory Walsh—Mahan Political Economy: Evidence from Ceramic Geochemistry8:00Sungjoo Lee—Technological Transmission between Different Levels of Specialization in Proto-historic NE Asia

[163] Forum

During the 22 years Tobi Brimsek was executive director of SAA, the Society changed radically from male-dominated to the tipping point of now slightly over half women, with a fast-moving trend toward more women. How much of this shift may be simply an international trend? Or may some of the lessening of the chilly climate have been influenced by Brimsek? Or, has the rise of CRM employment been a factor favoring women in archaeology? Has the shift toward First Nations participation in archaeology, challenging conventional power structure, lessened prejudice against women? This Forum, with full participation by audience members, will open questions and seek a clearer understanding of the present and future of SAA’s women members. “Why was it only when a critical mass of women entered their respective fields, bringing a gendered and in some cases an explicitly feminist perspective to bear, that pervasive androcentric and sexist omissions and distortions were identified?” – Alison Wylie 2016

Room: 140 Aztec
Time:  Friday, April 12th, 8:00 AM–10:00 AM
Moderator: Alice Kehoe


Sarah Herr—Discussant
Anna Prentiss—Discussant
Anabel Ford—Discussant

[171] Poster Session

Florida is home to some of the oldest Pleistocene and Colonial period archaeological sites in the Americas. This rich record demonstrates that past Floridians actively engaged with major long-term environmental shifts, hurricanes, and neighboring cultures in nuanced and complex ways that were accentuated by the arrival of European populations. However, Floridian archaeology is challenging due to poor organic preservation, poor separation of components, poor site visibility, and modern site destruction from looting, development, and sea level rise. Further, much of the early cultural record was submerged offshore by the more than 130m of sea level rise from approximately 21,000-5,000 years ago, meaning that we know little about how early people may have used the coasts. New methods of modeling and analysis hold great promise for mitigating these challenges and providing insight about how past Southeasterners lived and adapted to their changing worlds. The archaeologists in this session ask new questions of curated assemblages, analyze and interpret materials from recent excavations, and use new methods and techniques to shed light on some of Southeastern archaeology's most enduring problems.

Room: La Sala
Time: Friday, April 12th, 8:00 AM–10:00 AM
Chairs: Tanya Peres and Jessi Halligan


171-a Laylah Roberts—Social Significance of Glass Beads at San Luis de Talimali (8Le4)
171-b David Wilson and Jessi Halligan—It’s the Faunal Countdown! Analysis of Faunal Remains from the 2017 Excavations at the Ryan-Harley Site, Wacissa River, Florida
171-c Nicholas Bentley—Paleostorms and Precolonial Societies: Hurricane Deposits in Inundated Archaeological Sites in Northwest Florida
171-d Cameron Walker and Tanya Peres—Looking beyond the Mission: Insights from a Multicomponent Site
171-e Austin Cross—At What Expense? An Expended Utility Study of Bolen ProjectilePoints in Northern Florida
171-f Taylor Townsend—An Analysis of Garbanzo Bean Remains at Mission San Luis de Talimali
171-g Alison Bruin—Supply and Demand: Colonoware Creation and Spanish Ideals at San Luis de Talimali

[186] Symposium

The central role of the built environment and the importance of architecture for structuring cultural patterns and behaviors are well known for complex societies. In contrast, hunter-gatherer’s relationship to the built environment, particularly mobile hunter-gatherers, is not often discussed outside of utilitarian shelters. This session explores the diversity of hunter-gatherer interaction with the built environment including how structures are constructed, used, and the social and symbolic importance of architecture within these communities. This session takes a broad, crossl approach to understanding hunter-gatherer houses, exploring the use of architecture across time and space.

Room: 29 Sandia
Time: Friday, April 12th, 8:00 AM–11:00 AM
Chairs: Danielle Macdonald and Brian Andrews


8:00 Amy Clark—Built Environments in the Middle and Early Upper Paleolithic
8:15 Kathleen Sterling and Sébastien Lacombe—Why Build When There Are Caves? Investigating the Construction and Use of a Stone Structure in Pleistocene France
8:30 Danielle Macdonald and Lisa Maher—A Space for Living and Dying: The Life-History of Kharaneh IV Structures
8:45 Lisa Maher and Danielle Macdonald—Built Environments of Epipalaeolithic Southwest Asia: A Life History of Place
9:00 Brooke Morgan and Brian Andrews—Architecture and Human Behavior at a Folsom Period Residential Camp

9:15 Mark Stiger—Archaic and Paleoindian Houses in the Southern Rocky Mountains9:30Lauren Norman—Early Thule Inuit Architecture in the Arctic: An Anchor in Migration and Movement
9:45 Christopher Morgan, Dallin Webb, Kari Sprengeler, Marielle Black and Nicole George—Experimental Construction of Hunter-Gatherer Residential Features, Mobility, and the Costs of Occupying “Persistent Places”
10:00 Matthew O'Brien, Todd Surovell and Randy Haas—Five Seasons with the Dukha: House Structure among Nomadic Herders
10:15 Klint Janulis, Cory Stade and Mansoor Ahmad—Give Me Shelter: Reverse Engineering a Paleolithic Home10:30Questions and Answers
10:45 Margaret Conkey—Discussant

[187] Symposium

The North American Southwest looms large in American archaeology. It is characterized by a distinctive range of ecological conditions, formation processes, and preservation contexts that sets it apart from other regions. Its expansive landscapes, well -preserved architectural sites, and connections to modern people have enabled the region to serve as a laboratory for the development of archaeological methods and ideas. The pre-agricultural record of the Southwest is somewhat less conspicuous, but it has played a comparably critical role in the archaeology of early hunter-gatherers. The Clovis and Folsom archaeological cultures were both initially defined in New Mexico, and additional sites and surveys throughout the Southwest have contributed significantly to understanding them and their successors. The environmental diversity that characterizes the region coupled with the wetter and cooler climate of the Late Pleistocene appears to have sustained generations of foragers, and the resulting record traces initial colonization through the development of regionally distinct cultural patterns. The Southwest continues to contribute new discoveries, as well as new information from known sites, localities, and landscapes, that broadens our understanding of the earliestAmericans. The papers in this symposium present current archaeological research from across the Greater Southwest.

Room:  210 Tijeras
Time:  Friday, April 12th, 8:00 AM–11:00 AM
Chairs: David Kilby and Bruce Huckell


8:00 David Kilby—The Hunters Were Here First: Paleoindian Research in the Greater Southwest
8:15 Christopher Merriman—Paleoindian Settlement and Mobility in the Northern Jornada del Muerto
8:30 Brendan Fenerty, Vance Holliday, Allison Harvey and Matthew Cuba—Paleo-lake Otero, Playas, and Paleoindian Land-Use in the Tularosa Basin, New Mexico
8:45 David Bustos, Matthew Bennett, Daniel Odess, Tommy Urban and VanceHolliday—Widespread Distribution of Fossil Footprints in the Tularosa Basin: Human Trace Fossils at White Sands National Monument
9:00 Guadalupe Sanchez Miranda, Ismael Sánchez-Morales and John Carpenter—Current Paleoindian Research in Sonora
9:15 Marcus Hamilton—The Paleoecology of the Mockingbird Gap Clovis site, New Mexico and Surrounding Region
9:30 Jacob Tumelaire, Samuel H. Fisher and Francis Smiley—Clovis in the Petrified Forest
9:45 Meghann Vance—Questioning Clovis in Southeast Utah: Late in the Game or Transitional?
10:00 Nicholas Hlatky—Folsom Technological Organization at the Martin Site, Central New Mexico
10:15 Anne Parfitt and Kathryn Cross—Archaeological Investigations at the Double Flute Folsom site (LA178142), New Mexico
10:30 Robert Dello-Russo and Vance Holliday—Paleoindians Beyond the Edge of the Great Plains: The Water Canyon Site in Western New Mexico
10:45 Bonnie Pitblado—Discussant

[190] Symposium

Polly Schaafsma’s pioneering work on the rock art of the American Southwest in the 1960s not only helped establish her as theauthority in this region, but also as one of the first American scholars to focus on rock art research. The themes of place, style, and tradition recur in her work, and by her commitment to analysis of style and imagery, she has demonstrated the value of rock art as a major resource in reconstructing past cultures and traditions. She has utilized rock art to chronicle cultural change, and in collaboration with Curtis Schaafsma, she investigated the origins of the Pueblo Kachina Cult. In the 1980s she wrote on theory and method in rock art studies, and this work is still indispensable, reaching far beyond the Southwest to guide those working with rock art worldwide. Schaafsma continues to bring contemporary issues to the attention of the wider research community, as shown with her recent book on rock art and ethics. Thus, as we honor her many significant contributions to rock art studies, we invited papers on these topics from the general standpoint of rock art research with special reference to the legacy of this highly influential scholar.

Room: 18 Cochiti/30 Taos
Time: Friday, April 12th, 8:00 AM–11:15 AM
Chairs: Mavis Greer and Patricia Dobrez


8:00 Radoslaw Palonka, Vincent MacMillan, Katarzyna Ciomek and Magdalena Lewandowska—Cultural Landscapes and Migrations in Sandstone Canyon, Southwestern Colorado through Pueblo and Ute Rock Art
8:15 Kirk Astroth, T. J. Ferguson and Caitlin McPherson—Footsteps of Hopi History or Inscriptions by Spanish Priests? The Elusive and Enigmatic Labyrinth Glyphs of the American West
8:30 Jennifer Huang—Out From the Center: Rock-Art of the Chaco World
8:45 Richard Vivian—Polly -Rock Art -and Understanding Chaco
9:00 Lawrence Loendorf—Rock Art Sites in the Permian Basin, New Mexico
9:15 Jessica Christie—Finding Context for Rock Art Images in the Southwest
9:30 Kelley Hays-Gilpin, Robert Mark and Evelyn Billo—Mural Ecology: Walls That Bring People Together
9:45 Carlos Rodriguez-Rellan and Ramón Fábregas Valcarce—Search Beneath theRock Surface: Legend Chasers, Treasure-hunters and Rock Art in NW Spain
10:00 Livio Dobrez and Patricia Dobrez—The Uses of Stylistic Analysis in Rock Art Studies
10:15 Linea Sundstrom—Polychrome Perplexities: The Painted Rock Art of the Southern Black Hills
10:30 Mavis Greer and John Greer—Arriving at a Meaningful Rock Art Interpretation
10:45 Katharine Fernstrom—Can We SeeTravelers in Rock Art?
11:00 Polly Schaafsma—Discussant


One of the virtues of doing archaeology in Oaxaca is that we get to enjoy Oaxaca’s world-renowned cuisine. Mexico’s cuisine was the first to receive UNESCO’s culinary heritage status and, among the culinary traditions of Mexico, the one from Oaxaca reigns supreme among gourmands. This bilingual session will focus on recent finds and ongoing research that investigates the development of the Oaxacan prehispanic diet and the history of the region’s cuisine. The topic of food can be studied through different approaches: as an adaptation to our physical and social environments, as a response to our material needs and a reflection of our social complexity, or as foodways, which are symbolically charged and meaningful practices that reinforce social ties, cultural identity, and beliefs. Session participants, using any combination of these approaches, are generating data stemming from diverse methodologies, from paleoethnobotanical and zooarchaeological studies to the study of cooking implements and vessels, from stable isotope studies of human remains to the study of ethnohistorical records and linguistic evidence. By bringing together a wide range of perspectives, methodologies, and scholars the session will contribute to our growing understanding of how this rich food tradition came into existence.

Room: 235 Mesilla
Time: 8:00 AM–11:45 AM
Chair: Veronica Perez Rodriguez


8:00 Aleksander Borejsza, Arthur Joyce and Jonathan Lohse—Food from the Barranca: A 13,000-Year Perspective from the Yuzanú Drainage of the Mixteca Alta
8:15 Shanti Morell-Hart andÉloi Bérubé—Archaic Period MRG-6 and the Deep Culinary Roots of Oaxacan Cuisine
8:30 Jeffrey Blomster and Victor Salazar Chavez—Foodways and Human-Animal Relations at Early Formative Etlatongo: An Ontology of Differentiation
8:45 Sarah Barber, Arthur Joyce, Petra Cunningham-Smith and Shanti Morell-Hart—Constituting the Divine: Coastal Cuisine and Public Places in the Formative-period Lower Río Verde Valley
9:00 Alicia Gonzales, Shunashi Soledad Victoria Bustamante, Jeffrey Blomster, Veronica Perez Rodriguez and Ricardo Higelin Ponce De Leon—The Impact of Diet and Dental Health among the Mixtec Urban Societies from the Formative Period of Oaxaca, Mexico
9:15 Lacey Carpenter and Jonathan Paige—Tools for Change: Food Preparation Techniques during State Formation at the Tilcajete Sites
9:30 Questions and Answers9:45Ronald Faulseit and Heather Lapham—Cuisine Choices in Mundane and Ceremonial Contexts at a Late Classic Palace Compound in the Valley of Oaxaca, Mexico
10:00 Robert Markens and Cira Martínez López—Nourishing the Ancestors among the Zapotecs, Valley of Oaxaca
10:15 Jennifer Saumur—Foodways and Diet in the Prehispanic Mixteca Alta: Ceramic and Isotope Analyses in the Specific Case of the Tomb 1 Burial in Nduatiucu (San Felipe Ixtapa, Teposcolula)
10:30 Marc Levine and Kathryn Puseman—Foregrounding Food: Mixtec Cuisine, Identity, and Household Ritual at Late Postclassic Tututepec, Oaxaca
10:45 Stacie King and Shanti Morell-Hart—Preserving Oaxacan Foodways in the Face of Conquest: The Seed Bank at Cerro del Convento
11:00 Éloi Bérubé and Jamie Forde—The Oaxacan Cuisine at Achiutla during the Early Colonial Period: A Story of Resilience
11:15 Andrea Cuellar—Discussant
11:30 Veronica Perez Rodriguez—Discussant

[207] Poster Session

Room: La Sala
Time: Friday, April 12th, 10:30 AM–12:30 PM


207-a Alexander Craib and Robert L. Kelly—Alm Shelter: A Preliminary Report on a Deeply Stratified Rockshelter in the Bighorn Mountains of Wyoming
207-b Susan Vehik—A Fourteenth-Century Southern Plains Star Chart
207-c Justin Williams and Matthew Landt—Raw Material Use though the Archaic at the Aught-Six Site: Northwestern Colorado
207-d Nicole Jacobson—Mobility in the Big Horns: GIS Analysis of Upper and Lower Canyon Creek and the Implications for Prehistoric Movement
207-e Kristen Carlson, Haley Sherwood, Dagny Anderson, Amelia Cisar and Andrew Kracinski—Ethnogenesis at the Lynch Site (25BD1), Nebraska through Pottery Analysis
207-f Jennifer Banks—Dismal River Housing: A Comparative Study of Apache Housing Structures

[210] Poster Session

Room: La Sala
Time: Friday, April 12th, 10:30 AM–12:30 PM

210-a Walter Dodd andRoger LaJeunesse—Implications of Stable Isotope Values from the Skyrocket Site (CA-Cal-629/630)
210-b Paul Gerard and ReneVellanoweth—Testing the Efficacy of Methodologies for the Estimation of Body Size of California Mussel Based on Shell Fragments
210-c Shelby Medina, Jessica Rodriguez, Paul Gerard and ReneVellanoweth—Were Large Mammal Limb Bones Processed to Extract Marrow and Render Grease at the Danielson Ranch site (CA-VEN-395)?
210-d Karimah Kennedy Richardson, Hugh Radde, Wendy Teeter and Desiree Martinez—Examining Site Functions and Relationships: The Value of Small Ridgeline Sites on Pimu/Catalina Island.

[211] Poster Session

Room:  La Sala
Time:  Friday, April 12th, 10:30 AM–12:30 PM


211-a Christopher Donnermeyer, Trent Skinner,Michelle North and Nicholas Guest—Bridal Veil Lumbering Company: A Glimpse into an Intact Early Logging System in the Columbia River Gorge
211-b Brandi MacDonald, Rudy Reimer, Catherine Klesner and David Stalla—Insights into Rock Art Pigment Provenance and Microenvironment at Ashlu Rockshelter, British Columbia, Canada
211-c Christina Conlee, Bryan Heisingerand Nora Berry—Prehistoric and Historic Settlement in the Pine Creek Drainage, North-Central Oregon
211-d Yoli Ngandali—Communities of Art Practices on the Lower Columbia River: Technical Photography Using Infrared, UV, and Visible Light
211-e Molly Carney—Alternative Recipes: Exploring the Diversity of Foods Prepared in Prehistoric Earth Oven Cooking
211-f William Damitio, Shannon Tushingham, Korey Brownstein and David Gang—Tobacco Smoking in Northwestern North America: Synthesizing the Results of Organic Chemical Residue Analyses
211-g Sarah Nowell—Feature Content Analysis: Comparing Trends in Tool Use and Storage Strategies at Bridge River (EeRl-4), British Columbia
211-h Renae Campbell—Introducing the HJCCC: A Digital Collection of Japanese Ceramics Recovered from Archaeological Sites in the American West
211-i Florencia Pezzutti, Naomi Brandenfels and Austin Pratt—Willamette Valley Project: Recreating the Landscape of the Willamette Valley through GIS Mapping of Historic Documents


This session explores archaeological understandings of indigenous rituals practiced just prior to and after European colonialism in North America. Many of the papers in this session explore the ways that indigenous rituals evolved and/or persisted despite colonial pressures to silence them. Other papers in this session broaden archaeological explorations of ritual in North America through contributions from locations historically underexplored in typical treatments of this topic. Through these contributions, this session aims to illustrate the depth, endurance, change, and diversity of indigenous ritual across North American late prehistory and early history and provides tools for identifying and expanding understandings of ritual in archaeological contexts.

Room:  25 Navajo
Time:  Friday, April 12th, 1:00 PM–3:30 PM
Chair:  Madeleine McLeester


1:00  Anna Prentiss and Alysha Edwards—Scrambles, Potlatches, and Feasts: the Archaeology of Public Rituals amongst the St’át’imc People of Interior British Columbia
1:15  Martin Gallivan—Algonquian Landscapes and Multispecies Archaeology in the Chesapeake
1:30  Michelle Pigott and Christopher Rodning—Archaeology of Ritual in Cherokee Towns of the Southern Appalachians
1:45  John Scarry—Purification Ritual and the Creation of Place in the Mississippian Southeast
2:00  Madeleine McLeester and Mark Schurr—Ritual Traces and the Challenges of Detecting Late Precontact Rituals at Midewin National Tallgrass Prairie, IL
2:15  Meghan Howey—Great Lakes Enclosures and Un-silencing the Midewiwin Ceremonial Complex 2:30Sandra Hollimon—Silenced Undertakers
2:45  Maria Zedeno—What Is ‘Good Hair’? –Personhood, Ritual, and Resurgence of Bodily Adornment among the Equestrian Blackfoot
3:00  Mark Schurr and Madeleine McLeester—Native Voices: Contributions by John Low, Alysha Edwards, Denise Pouliot, Paul Pouliot, andOthers
3:15  Ian Kuijt—Discussant

[240] Symposium

Coastal and island environments have long been important habitats for humans and their fossil ancestors. However, these environments are also delicate ecosystems that are susceptible to damage or alteration from a myriad of natural and cultural forces. The influence of environmental change and anthropogenic forces on island and coastal settings has long been a topic of interest in archaeology. Shifts in environmental conditions and intensive exploitation of nearshore habitats by humans can have a dramatic and damaging impact on ecosystems. Conversely, these changes in environmental conditions can also lead to the proliferation of natural resources, and the repeated, long-term use of these habitats by groups can result in unique management systems that build and maintain stable and productive ecosystems. Finally, researchers must also consider the ecological limitations of the taxa in their assemblages, as these variables can also significantly affect the way an ecosystem adapts to external pressures. It is therefore clear that to properly understand the use and evolution of island and coastal settings, researchers must take a holistic approach that integrates all these variables into their interpretations. This session will broadly focus on the impacts that environmental and anthropogenic forces have on island and coastal settings.

Room:  17 Apache
Time:  Friday, April 12th, 1:00 PM–3:30 PM
Chairs:  Katherine Woo and Christopher Jazwa


1:00  Jonathan Benjamin, Peter Moe Astrup, Claus Skriver, Chelsea Wiseman and Geoff Bailey—Investigations of a Submerged Prehistoric Midden on Hjarnø, Denmark: Climate, Sea Level and Culture
1:15  Katarina Jerbic—Connecting Survey and Fieldwork: Archaeology of the Core
1:30  Jessica Cook Hale—“...As the Waves Make Towards the Pebbled Shore”: Site Formation Processes on Drowned Coastal Sites and Implications for Preservation, Discovery, and Interpretatio
1:45  Tam Smith—Coastal Southeast Queensland, Australia: An HistoricalEcology Model of Mid-to Late Holocene Settlement and Subsistence
2:00  Kristin Hoppa—Human Adaptations to Environmental Change on the California Channel Islands
2:15  Katherine Woo—Shifting Palaeoeconomies in the East Alligator River Region: An Archaeomalacological Perspective
2:30  Amira Ainis, Jon Erlandson and ReneVellanoweth—Resilience and Stable Shifts: Historical Ecology at Bay Point, San Miguel Island, California
2:45  Carola Flores-Fernandez, Sandra Rebolledo, Jimena Torres, Diego Salazar and Bernardo Broitman—Nearshore Paleoceanographic Conditions and Human Adaptation on the Coast of the Atacama Desert (Chile, 25°S) During the Early and Middle Holocene
3:00  Ryan Anderson and Christopher Jazwa—Natural and Anthropogenic Effects on Coastal Environments along the East Cape of Baja California Sur, Mexico
3:15  Rene Vellanoweth, Amira Ainis, Santos Ceniceros-Rodríguez, Jessica Rodriguez and Paul Collins—Using Barn Owl (Tyto alba) Pellets to Build Environmental Profiles: A 1,500-Year-Old Record from Barn Owl Cave, Santa Barbara Island, California, USA

[249]  Symposium

Western Stemmed Tradition (WST) artifacts, not Clovis, dominate the Paleoindian record in the Intermountain West. As such, this symposium aims to: (1) provide an overview of WST chronology, technological organization, and subsistence; (2) assess the relationship between WST and Clovis; and (3) place this evidence within the broader context of the peopling of the Americas. Papers will highlight the most recent research in WST and fluted point studies throughout the Intermountain West, with a focus on chronology, morphology, and distribution. In order to create dialogue and research exposure across geographical space, speakers include both WST and Clovis researchers.

Room:  10 Anasazi
Time:  Friday, April 12th, 1:00 PM–4:45 PM
Chairs:  Katelyn McDonough, Jordan Pratt and Richard Rosencrance


1:00  Michael Rondeau and Nicole George—Paleoindian Projectile Points in the Far West
 1:15  Todd Surovell—The Ages of Stemmed and Fluted Points in the Northwestern Plains and Rocky Mountains
1:30  Dennis Jenkins—Dating the Western Stemmed Tradition in the Northern Great Basin1:45Bryan Hockett—Subsistence Diversity During the Western Stemmed Tradition in the Intermountain West
2:00  Richard Rosencrance—Assessing the Chronological Variation Within the Western Stemmed Tradition
2:15  Daron Duke and Daniel Stueber—Haskett and Its Clovis Parallels
2:30  Geoffrey Smith—The First Centuries after Clovis: A Review of Younger Dryas Western Stemmed Tradition Occupations in the Great Basin with a Focus on What They Can Tell Us about How and When Humans Colonized the Western United States
2:45  Katelyn McDonough—The Western Stemmed Tradition During the Younger Dryas: The Newest Evidence from Connley Caves, Oregon
 3:00  Jordan Pratt—Exploring Open-Air Western Stemmed Sites in the Harney Basin, Oregon: A Technological and Chronological Analysis
3:15  Patrick O'Grady, Scott Thomas, Thomas W. Stafford Jr., Daniel Stueber and Margaret Helzer—The View from the Trenches: Tying Paleoenvironment to Archaeology at Rimrock Draw Rockshelter (35HA3855)
3:30  Edward Knell—Current Perspectives on the Western Stemmed Tradition and Clovis in the Mojave Desert
3:45  Jon Erlandson—Western Stemmed Technology on California's Channel Island
4:00  Ted Goebel, JoshuaLynch and Caitlin Doherty—Stemmed Points from Nevada Caves
4:15  Robert L. Kelly—Discussant
4:30  Charlotte Beck—Discussant

[253]  Symposium

This session examines how ancient DNA can best support archaeological research. The “ancientDNA revolution” is transforming our understanding of the human past – an understandingmeticulously built through decades of archaeological research. While the first ancient genomewas published only in 2010 and the number only reached 100 in 2015, more than 1,000 ancientgenomes were published within the last year alone. The proliferation of ancient DNA and itsinherent dependence on archaeological material for analysis requires collaborative effortsbetween archaeologists and geneticists, balancing the grand narratives of demographic historyover space and time with finer-grained research questions in archaeology. To properly integrate these two fields however –to move toward a true science of “archaeogenetics” –ancient DNA
must be made more accessible to archaeologists and be more tuned to questions posed byarchaeologists. Papers in this session provide examples of how ancient DNA can enrich ourunderstanding of the archaeological record, explain the techniques used in ancient DNAresearch, provide case studies of integrative archaeogenetics projects, and explore howarchaeologists and geneticists can establish a symbiotic relationship in the years ahead.
Room:  110 Galisteo
Time:  Friday, April 12th, 1:00 PM–5:00 PM
Chair:  Kendra Sirak


1:00  Elizabeth Sawchuk and Mary Prendergast—How to Choose Samples for aDNA: Bioarchaeological Best Practices for Sampling Human Remains
1:15  Jakob Sedig—Building a More Precise Understanding of the Past by Merging Techniques from Archaeology and Ancient DNA Analysis
1:30  Sterling Wright, Nihan Kilic, Karissa Hughes, Nawa Sugiyama and Courtney Hofman—Biomolecular Preservation in Dental Calculus from the Teotihuacan Ritual Landscape1:45Rachel Summers, Meradeth Snow and Michael Searcy—MtDNA Analysis of the Paquimé (Casas Grandes), Mexico, Population
2:00  Marlen Flores Huacuja, Humberto Garcia-Ortiz, Angelica Martinez-Hernandez, Lorena Orozco-Orozco and Meradeth Snow—Identification of Mitochondrial Haplogroups in Native Mexican and Mestizo Populations
2:15  Paige Plattner and Meradeth Snow—Ancient DNA Analysis of Orton Quarry
2:30  Hannah Moots, Margaret Antonio, Ziyue Gao and Jonathan Pritchard—An Archaeogenetic Approach to Studying the Demographic History of Rome
2:45  Kendra Sirak, Dennis Van Gerven, Jessica Thompson, Ron Pinhasi and David Reich—Genetic Variation and Sociocultural Dynamics in Two Early Christian Cemeteries from Kulubnarti
3:00  Lars Fehren-Schmitz, Kelly Harkins, John Krigbaum, Regulo Jordan and Jeffrey Quilter—Beyond the Big Picture: An integrative Paleogenomic Study to Address Regional Dynamics and Political Organization in the Peruvian Moche Culture
3:15  Tre Blohm, Jordan Karsten, Ryan Schmidt and Meradeth Snow—Presence of the Mycobacterium Tuberculosis Complex (MTBC) in Ancient Skeletal Samples from Ukraine
3:30  Johannes Krause—Ancient Pathogen Genomes from Pre-and Early Colonial Epidemics in Mesoamerica and the Evolution of Paratyphi C
3:45  Oliver Smith, Glenn Dunshea, Robin Allaby and Tom Gilbert—Beyond the Genome: Unravelling Life Processes Using Epigenomes and Ancient RNA
4:00  Alexander Kim, Tatyana Savenkova, Svetlana Smushko, Yevgenia Reis and David Reich—Genome-wide Ancient DNA from Historical Siberia as a Lens on Yeniseian Population History
4:15  Mark Lipson, Mary Prendergast, Isabelle Ribot, Carles Lalueza-Fox and David Reich—Ancient Human DNA from Shum Laka (Cameroon) in the Context of African Population History
4:30  John Lindo, Randall Hass, Christina Warinner, Mark Aldenderfer and Anna Di Rienzo—The Genetic Prehistory of the Andean Highlands 7,000 Years BP though European Contact
4:45  Vagheesh Narasimhan—The Genomic Formation of Central and South Asia

[322] Poster Session

Room:  La Sala
Time:  Saturday, April 13th, 10:30 AM–12:30 PM


322-a  Leland Bement, Kristen Carlson and Dakota Larrick—Discard, Stockpile, or Commemorative Cairn: Interpreting the Bison Skull Pile at the Ravenscroft Late Paleoindian Bison Kill, Oklahoma Panhandle
322-b  Robert Lassen and Sergio Ayala —Is Fluting Exclusive to Paleoindians? A Comparison ofPaleoindian and Archaic End-Thinning Techniques
 322-c  Barbara Crable and Jack Hofman—Paleoindian Intercept Hunting in the Bethel Locality, Western Oklahoma
322-d  Daniel Dalmas and Matthew G. Hill—Assessment of Late Quaternary Bison Diminution Using Linear Discriminant Analysis
322-e  Joseph McConnell—Evaluating “Folsom” Points in the Blackwater Draw Museum’s Calvin Smith Collection
322-f  Molly Herron—Camping with Mammoths? Identification of Ivory Fragments at the La Prele Mammoth Site Using Microscopy

[323]  Poster Session

Room:  La Sala
Time:  Saturday, April 13th, 10:30 AM–12:30 PM


323-a  Megan Donham, Richard Rosencrance and Katelyn McDonough—A First Look at Western Stemmed Tradition Lithic Reduction and Procurement Strategies at Connley Cave 4, Oregon
323-b  Shelby Saper, Richard Rosencrance, Katelyn McDonough and Dennis Jenkins—Cascade Phase Context and Chronology at the Connley Caves, Oregon
323-c  Andrea Ogaz—Revisiting the Archaeology ofDry Lake Cave, California (CA-INY-1898)
323-d  Erik Martin, Robert G. Elston, D. Craig Young, Brian Codding and David Rhode—Theoretically Based Investigations of the Paleo-Indian Occupation of Grass Valley, Nevada
323-e  Caitlin Doherty and Ted Goebel—Discerning Paleoindian Mobility in the Eastern Great Basin: A Geochemical Analysis of Lithic Artifacts from Bonneville Estates Rockshelter and Smith Creek Cave
323-f  Noel Jones—Land Use in the High Desert of Northwestern Nevada: Analyzing Settlement Patternsof the Bare Allotment
323-g  Anthony Morales—Rose Valley Site (CA-INY-1799): Applying an Interdisciplinary Approach to a Western Great Basin Paleoindian Site
323-h  Lydia Sykora, Justin Tackney, R. Kelly Beck, Dennis H. O'Rourke and Jack Broughton—Reconstruction of Late Holocene California Tule Elk Populations Using Ancient DNA and Stable Isotopes: An Update on Ongoing Analyses
323-i  Escee Lopez, Jessica Morales and Rene Vellanoweth—Zooarchaeological Analysis of Fish Remains from the Thousand Spring Site (CA-SNI-11), San Nicolas Island, California

[327] Poster Session

This poster symposium presents results of new research at 48PA551, a Middle Archaic (McKeanComplex) site in the Sunlight Basin of NW Wyoming. The Middle Archaic is recognized as a time of continent wide cultural innovation and experimentation that included the appearance of villages and sedentism to ritualized behavior and complex earthwork construction. Within the Rocky Mountain region, the Middle Archaic is poorly understood though scholars have long recognized it as time of cultural diversity. Posters in this symposium illustrate multi-disciplinary research designed to assess alternative models of McKean Complex socio-economic adaptations. Specific studies focus on geophysical investigations, dating and stratigraphy, lithic technological organization, paleoethnobotany, and faunal analyses.

Room:  La Sala
Time:  Saturday, April 13th, 10:30 AM–12:30 PM
Chairs:  Ethan Ryan and Emma Vance


327-a  Lawrence Todd and Rachel Reckin—Archaic Period Obsidian Use in the Greater Yellowstone Ecosystem: The 48PA551 Assemblage in Regional Context
327-b  Kelsi Kaviani, Anna Prentiss, Emma Vance, Ethan Ryan and Haley O'Brien—The McKean Complex Occupation in the Sunlight Basin, Northwest Wyoming: An Updated Assessment of Cultural and Geological Stratigraphy at Site 48PA551
327-c  Ethan Ryan—Know Before You Dig: Using Comparative Geophysical Exploration and Ground-Truthing for Surgical Excavation
327-d  Haley O'Brien, Anna Prentiss, Ethan Ryan and Emma Vance—Re-examining Site 48PA551 in Sunlight Basin, Northwest Wyoming: The Faunal Remains from the 2018 Field Season
327-e  Nicole Herzog, Liz Dolinar and Anna Prentiss—Using Micro and Macrobotanical Analyses to Assess Socio-economic Strategies at 48PA551, the McKean Occupation in the Sunlight Basin, Wyoming
327-f  Emma Vance, Ethan Ryan and Anna Prentiss—Connecting Lithic Technology to Socio-economic Organization at Site 48PA551

[328] Poster Session

In 1961, B. Robert Butler proposed the concept of the Old Cordilleran Culture on the basis of relatively standardized lanceolate projectile points. Since 1961, archaeological research into Olcott sites, the Puget Sound manifestation of the Old Cordilleran Culture, has largely been focused on artifact descriptions and site-scale questions. Developments in technology, broadening in the number of well-studied sites, and new theoretical approaches have added to our understanding of the Old Cordilleran Culture. This session examines recent archaeological studies of Olcott sites in western Washington that expand on previous investigations to diversify our understanding of the period and make meaningful connections between the artifacts of the past and descendants of the people respon sible for those materials.

Room:  La Sala
Time:  Saturday, April 13th, 10:30 AM–12:30 PM
Chair:  Christopher Noll


328-a Christopher Noll—A Perspective on Olcott from the Banks of the Elwha River, Clallam County, Washington
328-b Caitlin Limberg and Christopher Noll—Lithic Technological Organization at Three Olcott Sites along the Elwha River, Clallam County, Washington
328-c Julia Furlong—Geochemical Analysis of Crystalline Volcanic Rock Artifacts from Three Olcott Sites along the Elwha River, Clallam County, Washington
328-d Sean Stcherbinine—Geoarchaeology of Three Olcott Sites along the Elwha River, Clallam County, Washington
328-e Jennifer Ferris and Kerry Lyste—Come Together Over Olcott: Recent Collaborative Investigation

[332] General Session

Room: 230 Pecos
Time: Saturday, April 13th, 10:45 AM–12:00 PM
Chair: Angela Gore


10:45  Robert Rowe—Megafauna 101 for Archaeologists
11:00  C. Hemmings—Late Pleistocene Faunal Utilization: Some Current Thoughts on Paleoindian Diet and Tool Source Selection
11:15  Angela Gore—From Source to Site: Investigating Diachronic Toolstone Procurement and Land-Use in the Nenana Valley, Interior Alaska
11:30  Amanda Carroll—Perspectives onPits of the Western Stemmed Tradition: An Analysis on the Contents of Feature 59 at the Cooper’s Ferry Site
11:45  Ciprian Ardelean—The Human Presence in the Americas during and before the Late Glacial Maximum under the Light of New Investigations at Chiquihuite Cave, the Older-Than-Clovis Site in Mexico

[341] Forum

The forum seeks to be the beginning of the end of cultural resource crime (CHC) in Indian Country—the reservation lands and American communities most directly and harmfully affected by looting, vandalism, grave robbing, and other irrevocable forms of CHC. CHC means unauthorized alteration, damage, removal, or trafficking in materials possessing combinations of communal, spiritual, aesthetic, and archaeological or other scientific values. CHC is a colonial legacy and tentacle of transnational criminality with nefarious links to drug and weapon trafficking, cultural genocide, and terrorism. Despite persistent opposition by victimized communities and heritage and law enforcement professionals, CHC continues to undermine global-scale heritage stewardship and local senses of place, identity, and security. CHC’s sinister ‘glocality’ demands broadly integrated yet precisely targeted research and outreach to curb, document, investigate, punish, remediate, and reconcile. Results from the 2018, Wenner-Gren sponsored workshop on forensic sedimentology on White Mountain Apache Tribe lands at Fort Apache, Arizona, provide the point of departure for dialogue to build consensus among community leaders, heritage stewards, archaeological scientists, and law enforcement professionals on how to extirpate CHC from Indian Country in the next decade then apply lessons learned to thwart CHC elsewhere and forevermore.

Room:  120 Dona Ana
Time:  Saturday, April 13th, 1:00 PM–3:00 PM
Moderator:  John Welch


Benjamin Nuvamsa—Discussant
Bonnie Magness-Gardiner—Discussant
Mitchell Keur—Discussant
Brandi MacDonald—Discussant
Duston Whiting—Discussant
Michael Richards—Discussant
Stacy Ryan—Discussant
Garry Cantley—Discussant
Barbara Mills—Discussant
Ramon Riley—Discussant
Franklin Chavez—Discussant

[342] Forum

The Greater Chaco Landscape is currently threatened by expanding oil and gas development associated with fracking in the Mancos Shale formation in northwestern New Mexico. For the last four years, Archaeology Southwest, the Greater Chaco Landscapes working group, the SAA Mancos Shale Task Force, and other partners have fought to address this crisis. We have had extended conversations with the New Mexico Bureau of Land Management, the Bureau of Indian Affairs, the National Park Service, the New Mexico State Historic Preservation Department, the New Mexico Congressional Delegation and other entities. Because Native American voices are not always heard by the agencies, we have strengthened our outreach and partnerships with southwestern Native American Tribes. To that end, in this forum, we present a panel of Native American speakers who will convey the deep spiritual importance of the Greater Chaco Landscape and who will discuss their views of the best management practices for preservation of this ancient cultural landscape.

Room:  270 Ballroom C
Time:  Saturday, April 13th, 1:00 PM–3:00 PM
Moderators:  Paul Reed and Ruth Van Dyk


Deb Haaland—Discussant
Theresa Pasqual—Discussant
William Tsosie—Discussant
Timothy Menchego—Discussant
Ruth Van Dyke—Discussant
Benji Chavarria—Discussant
Phillip Tuwaletstiwa—Discussant
Octavius Seowtewa—Discussant