Dating of a large tool assemblage at the Cooper’s Ferry site (Idaho, USA) to ~15,785 cal yr B.P. extends the age of stemmed points in the Americas

Davis, Loren G.; Madsen, David B.; Sisson, David A.; Becerra‐Valdivia, Lorena; Higham, Thomas; Stueber, Daniel; Bean, Daniel W.; Nyers, Alexander; Carroll, Abigail; Ryder, Christina M.; Sponheimer, Matt; Izuho, Masami; Iizuka, Fumie; Li, Guoqiang; Epps, Clinton W.; Halford, F. Kirk

doi:10.1126/sciadv.ade1248

Cited by 15 publications

(4 citation statements)

References 51 publications

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“…Riparian and wetland textile fiber well suited for basketry and cordage—such as tule, cattail, rushes, dogbane, and stinging nettle—likely thrived in these new landscapes. This dramatic period in ecological change coincides with the earliest evidence of humans populating the NGB by 14,500 years ago (Goebel et al 2008; Hockett et al 2017; Jenkins et al 2012; Shillito et al 2020) and the Columbia Plateau by approximately 16,000 cal BP (Davis et al 2022).…”

Section: Discussionmentioning

confidence: 55%

Fiber Artifacts from the Paisley Caves: 14,000 Years of Plant Selection in the Northern Great Basin

Kallenbach

2024

Am. Antiq.

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Paleoethnobotanical remains from basketry and cordage from the Paisley Caves offer an opportunity to explore how people engaged with plant communities over time. Fiber identification of textiles, together with radiocarbon dating, contributes new information about landscape use within the Summer Lake Basin. Expanded marshlands during the terminal Pleistocene / Early Holocene created suitable plant communities ideal for fiber technology, specifically wetland monocots and herbaceous dicots—including dogbane and stinging nettle—by 11,000 years ago. This technology is key to subsistence activities and craft production throughout the Holocene. Despite climatic events during the Middle Holocene, in which people transitioned from caves to sites centered on lakeshores and wetlands, the suite of fiber plants and their technological application remains constant. During the Late Holocene, bast fiber material diversified with the addition of flax and milkweed. The presence of flax in particular, a high-elevation plant, may reflect the increased use of upland root collection areas as populations increased. This research provides long-term data on culturally significant native plants used in the manufacture of fiber-based textiles over the last 14,000 years.

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Section: Discussionmentioning

confidence: 55%

Fiber Artifacts from the Paisley Caves: 14,000 Years of Plant Selection in the Northern Great Basin

Kallenbach

2024

Am. Antiq.

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“…Our findings are supported by archaeological evidence from the UP in the Japanese archipelago during this period (see Supplementary text). Furthermore, our findings may offer an avenue for testing hypotheses for the initial dispersal of the UP East Eurasians to the Americas ( 29 , 31–33 ) (see Supplementary text).…”

Section: Resultsmentioning

confidence: 94%

Cold adaptation in Upper Paleolithic hunter-gatherers of eastern Eurasia

Watanabe,

Wakiyama,

Waku

et al. 2024

Preprint

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Previous genomic studies understanding the dispersal of Homo sapiens have suggested that present-day East Eurasians and Native Americans can trace their ancestry to migrations from Southeast Asia. However, ineluctable adaptations during the Last Glacial Maximum (LGM) remain unclear. By analyzing 42 genomes of up to 30-fold coverage from prehistoric hunter-gatherers, Jomon, we reveal their descent from Upper Paleolithic (UP) foragers who migrated to and isolated in the Japanese archipelago during Late Pleistocene. We provide compelling evidence suggesting that these UP people underwent positive selection for cold environments, aiding their survival through the LGM facilitated by non-shivering thermogenesis and detecting it polygenically across multiple loci in the Jomon lineage. Our study pioneers the close estimation of the physiological adaptation of ancient humans by the paleogenomic approach.

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“…Indigenous oral traditions attest to the fact that humans have lived in the PNW since "time immemorial" and are supported by multiple archaeological datasets. Radiocarbon dated materials from Cooper's Ferry site (10IH73) in western Idaho confirm human occupation of the region by at least 16,000 years ago (Davis et al, 2022), and material from Rimrock Draw Rockshelter (35HA3855) in eastern Oregon extends that date to 18,250 years ago (O'Grady, 2022). Within the Cascades themselves, finds at Cascadia Cave (35LIN11) in the central western portion of the range, have been radiocarbon dated to 9,450 calibrated years before present (cal BP) (Baxter, 2023).…”

Section: Changing Forests and Indigenous Occupation And Removalmentioning

confidence: 90%

Pre-contact Indigenous fire stewardship: a research framework and application to a Pacific Northwest temperate rainforest

Coughlan,

Johnston,

Derr

et al. 2024

Front. Environ. Archaeol.

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Fire is a key disturbance process that shapes the structure and function of montane temperate rainforest in the Pacific Northwest (PNW). Recent research is revealing more frequent historical fire activity in the western central Cascades than expected by conventional theory. Indigenous peoples have lived in the PNW for millennia. However, Indigenous people's roles in shaping vegetation mosaics in montane temperate forests of the PNW has been overlooked, despite archaeological evidence of long-term, continuous human use of these landscapes. In this paper, we present a generalizable research framework for overcoming biases often inherent in historical fire research. The framework centers Indigenous perspectives and ethnohistory, leveraging theory in human ecology and archaeology to interpret fire histories. We apply this framework to place-based, empirical evidence of Indigenous land use and dendroecological fire history. Our framework leads us to conclude that the most parsimonious explanation for the occurrence of historical high fire frequency in the western Cascades is Indigenous fire stewardship. Further, our case study makes apparent that scholars can no longer ignore the role of Indigenous people in driving montane forest dynamics in the PNW.

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Dating of a large tool assemblage at the Cooper’s Ferry site (Idaho, USA) to ~15,785 cal yr B.P. extends the age of stemmed points in the Americas

Cited by 15 publications

References 51 publications

Fiber Artifacts from the Paisley Caves: 14,000 Years of Plant Selection in the Northern Great Basin

Fiber Artifacts from the Paisley Caves: 14,000 Years of Plant Selection in the Northern Great Basin

Cold adaptation in Upper Paleolithic hunter-gatherers of eastern Eurasia

Pre-contact Indigenous fire stewardship: a research framework and application to a Pacific Northwest temperate rainforest

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