A5014413838- Archaeology and ancient environmental studies
- Pleistocene-Era Hominins and Archaeology
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Cultural Heritage Materials Analysis
- Forensic Anthropology and Bioarchaeology Studies
- Pacific and Southeast Asian Studies
- Tree-ring climate responses
- Evolution and Paleontology Studies
- Archaeology and Natural History
- Archaeological Research and Protection
- Paleopathology and ancient diseases
- Building materials and conservation
- Conservation Techniques and Studies
- Marine Bivalve and Aquaculture Studies
- Forensic and Genetic Research
- Wildlife Ecology and Conservation
- Eurasian Exchange Networks
- Maritime and Coastal Archaeology
- Archaeology and Historical Studies
- Indigenous Studies and Ecology
- Image Processing and 3D Reconstruction
- Forest ecology and management
- Historical and Cultural Archaeology Studies
- Archaeology and Rock Art Studies
University of Arizona
2014-2023
Faculty of 1000 (United States)
2021
Institut de l'Information Scientifique et Technique
2018-2021
University of Debrecen
2021
University of Calgary
2016
University of Pennsylvania
2016
University of Illinois Chicago
2016
University of Tübingen
2016
University of Maine
2016
U.S. National Science Foundation
2005-2013
Study of human adaptation to extreme environments is important for understanding our cultural and genetic capacity survival. The Pucuncho Basin in the southern Peruvian Andes contains highest-altitude Pleistocene archaeological sites yet identified world, about 900 meters above confidently dated contemporary sites. workshop site [4355 sea level (masl)] includes two fishtail projectile points, which date 12.8 11.5 thousand years ago (ka). Cuncaicha rock shelter (4480 masl) has a robust,...
Virtually all well-documented remains of early domestic dog (Canis familiaris) come from the late Glacial and Holocene periods (ca. 14,000-9000 calendar years ago, cal BP), with few putative dogs found prior to Last Maximum (LGM, ca. 26,500-19,000 BP). The dearth pre-LGM dog-like canids incomplete state their preservation has until now prevented an understanding morphological features transitional forms between wild wolves domesticated in temporal perspective.We describe well-preserved a...
Whatever the cause, it is extraordinary that dozens of genera large mammals became extinct during late Quaternary throughout Western Hemisphere, including 90% xenarthran suborder Phyllophaga (sloths). Radiocarbon dates directly on dung, bones, or other tissue sloths place their “last appearance” datum at ≈11,000 radiocarbon years before present (yr BP) slightly less in North America, ≈10,500 yr BP South and ≈4,400 West Indian islands. This asynchronous situation not compatible with...
Significance Archaeological evidence from Sonora, Mexico, indicates that the earliest widespread and recognizable group of hunter-gatherers (“Clovis”) were in place ∼13,390 y ago southwestern North America. This is well-documented population on continent suggests unique Clovis artifact style originated southwest or south central part continent, well Arctic gateways into continent. These hunters targeted gomphotheres, an elephant common America, but unknown association with humans at this late age
New annual radiocarbon calibration data offer a resolution to controversial dating of the Bronze Age eruption Thera.
The horse is central to many Indigenous cultures across the American Southwest and Great Plains. However, when how horses were first integrated into lifeways remain contentious, with extant models derived largely from colonial records. We conducted an interdisciplinary study of assemblage historic archaeological remains, integrating genomic, isotopic, radiocarbon, paleopathological evidence. Archaeological modern North show strong Iberian genetic affinities, later influx British sources, but...
Goats were among the first farm animals domesticated, approximately 10,500 years ago, contributing to rise of "Neolithic revolution." Previous genetic studies have revealed that contemporary domestic goats (Capra hircus) show far weaker intercontinental population structuring than other livestock species, suggesting been transported more extensively. However, timing these extensive movements in remains unknown. To address this question, we analyzed mtDNA sequences from 19 ancient goat bones...
Understanding megafaunal population dynamics is critical to testing and refining scenarios of how extinctions occurred during the terminal Pleistocene. Large‐scale, collections‐based, chronological taphonomic analyses midwestern Proboscidea suggest divergent histories in mammoths mastodons after Last Glacial Maximum ( LGM ). Although extinction both taxa very late Bølling‐Allerød (B‐A) or early Younger Dryas YD ), Mammuthus dominant with a decreasing presence region until extirpation. Mammut...
Using a set of high-quality radiocarbon dates, including three new dates from the Hanson site and one Folsom component Hell Gap, we provide revised estimate duration period. Limiting our sample to bone collagen samples pretreated using XAD resin chromatographic or ultrafiltration techniques, calcined bone, charcoal hearth features, show that sites fall within limited range 12,610 12,170 BP, 440 years. This is considerably shorter than previous estimates. Additionally, there little...
Significance New radiocarbon ( 14 C) dates on American mastodon Mammut americanum ) fossils in Alaska and Yukon suggest this species suffered local extirpation before terminal Pleistocene climate changes or human colonization. Mastodons occupied high latitudes during the Last Interglacial (∼125,000–75,000 y ago) when forests were established. Ecological Wisconsinan glaciation (∼75,000 led to habitat loss population collapse. Thereafter, mastodons limited areas south of continental ice...
ABSTRACT In 2018 Pearson et al. published a new sequence of annual radiocarbon ( 14 C) data derived from oak Quercus sp.) trees Northern Ireland and bristlecone pine Pinus longaeva ) North America across the period 1700–1500 BC. The study indicated that more highly resolved shape an annually based calibration dataset could improve accuracy C during this period. This finding had implications for controversial dating eruption Thera in Eastern Mediterranean. To test interlaboratory variation...
Marine upwelling along coastal Peru can be intense and variable, making radiocarbon dating marine systems complex. Historical proxy records of are few, long-lived species such as corals do not grow in the cold waters. Mollusk shell carbonate, however, record both magnitude local reservoir correction, ΔR, seasonal oscillations ventilation age If large, these would complicate organisms. To examine this possibility, we sampled for δ 13 C, 18 O, 14 C content a set pre-bomb Argopecten purpuratus...
ABSTRACT The radiocarbon ( 14 C) calibration curve so far contains annually resolved data only for a short period of time. With accelerator mass spectrometry (AMS) matching the precision decay counting, it is now possible to efficiently produce large datasets annual resolution purposes using small amounts wood. intercomparison on single-year tree-ring samples presented here first investigate specifically offsets between AMS laboratories at high precision. results show that are capable...
Abstract
Briggs Buchanana*, J. David Kilbyb , Marcus Hamiltonc, Jason M. LaBelled, Kelton A. Meyerd Jacob Holland-Lulewicze, Brian Andrewsf Brooke Morgang, Brendon Asherh, Vance T. Hollidayi Gregory W. L. Hodginsj & Todd Surovellk* a Department of Anthropology, University Tulsa, OK, USAb Texas State University, San Marcos, TX, USAc at Antonio, USAd Anthropology and Geography, Colorado Fort Collins, CO, USAe Washington in St. Louis, MO, USAf Psychology Sociology, Rogers Claremore, USAg Illinois...
Mollusk shells provide brief (<5 yr per shell) records of past marine conditions, including radiocarbon reservoir age ( R ) and upwelling. We report 21 14 C ages calculations on small (∼2 mg) samples from 2 Mesodesma donacium (surf clam) shells. These were excavated a semi-subterranean house floor stratum dated to 7625 ± 35 BP at site QJ-280, Quebrada Jaguay, southern Peru. The ranges in (and thus the are 530 170 yr; individual aragonite spans 130 60 730 yr. This intrashell variability...