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261 results on '"Tryon, Christian A."'

6. Kisese II Rockshelter, Tanzania

Author

Ranhorn, Kathryn L., Colarossi, Debra, Molel, Sarah, Laird, Myra F., Lewis, Jason E., Mashaka, Husna, Niespolo, Elizabeth, Porter, Samantha T., Sawchuk, Elizabeth, Sharp, Warren D., Tryon, Christian A., Patania, Ilaria, Beyin, Amanuel, editor, Wright, David K., editor, Wilkins, Jayne, editor, and Olszewski, Deborah I., editor

Published
2023
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9. Ancient DNA and deep population structure in sub-Saharan African foragers

Author

Lipson, Mark, Sawchuk, Elizabeth A., Thompson, Jessica C., Oppenheimer, Jonas, Tryon, Christian A., Ranhorn, Kathryn L., de Luna, Kathryn M., Sirak, Kendra A., Olalde, Iñigo, Ambrose, Stanley H., Arthur, John W., Arthur, Kathryn J. W., Ayodo, George, Bertacchi, Alex, Cerezo-Román, Jessica I., Culleton, Brendan J., Curtis, Matthew C., Davis, Jacob, Gidna, Agness O., Hanson, Annalys, Kaliba, Potiphar, Katongo, Maggie, Kwekason, Amandus, Laird, Myra F., Lewis, Jason, Mabulla, Audax Z. P., Mapemba, Fredrick, Morris, Alan, Mudenda, George, Mwafulirwa, Raphael, Mwangomba, Daudi, Ndiema, Emmanuel, Ogola, Christine, Schilt, Flora, Willoughby, Pamela R., Wright, David K., Zipkin, Andrew, Pinhasi, Ron, Kennett, Douglas J., Manthi, Fredrick Kyalo, Rohland, Nadin, Patterson, Nick, Reich, David, and Prendergast, Mary E.

Published
2022
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10. Did Our Species Evolve in Subdivided Populations across Africa, and Why Does It Matter?

Author

Scerri, Eleanor ML, Thomas, Mark G, Manica, Andrea, Gunz, Philipp, Stock, Jay T, Stringer, Chris, Grove, Matt, Groucutt, Huw S, Timmermann, Axel, Rightmire, G Philip, d’Errico, Francesco, Tryon, Christian A, Drake, Nick A, Brooks, Alison S, Dennell, Robin W, Durbin, Richard, Henn, Brenna M, Lee-Thorp, Julia, deMenocal, Peter, Petraglia, Michael D, Thompson, Jessica C, Scally, Aylwyn, and Chikhi, Lounès

Subjects
Biological Sciences, Ecology, Africa, Animals, Archaeology, Biological Evolution, Ecosystem, Fossils, Genetics, Population, Geography, Hominidae, Humans, African origins, Middle Stone Age, evolutionary genetics, human evolution, paleoanthropology, paleoecology, Environmental Sciences, Evolutionary Biology, Biological sciences, Environmental sciences
Abstract

We challenge the view that our species, Homo sapiens, evolved within a single population and/or region of Africa. The chronology and physical diversity of Pleistocene human fossils suggest that morphologically varied populations pertaining to the H. sapiens clade lived throughout Africa. Similarly, the African archaeological record demonstrates the polycentric origin and persistence of regionally distinct Pleistocene material culture in a variety of paleoecological settings. Genetic studies also indicate that present-day population structure within Africa extends to deep times, paralleling a paleoenvironmental record of shifting and fractured habitable zones. We argue that these fields support an emerging view of a highly structured African prehistory that should be considered in human evolutionary inferences, prompting new interpretations, questions, and interdisciplinary research directions.

Published
2018

13. Between land and sea: A multidisciplinary approach to understand the Early Occupation of Sicily (EOS).

Author

Patania, Ilaria, Ogloblin Ramirez, Isaac, Carroll, Peyton, Wroth, Kristen, Zaia, Sara, Di Mauro, Sebastiano, Falci, Danielle, Querenet Onfroy de Breville, Iris, Aguilar Lazagabaster, Ignacio, Minniti, Gianmarco, Reitano, Agatino, Insacco, Gianni, Kidder, Tristram, and Tryon, Christian

Subjects
PALEOLITHIC Period, SCIENTIFIC method, SEISMOLOGY, MUSEUM studies, RAW materials
Abstract

The island of Sicily is considered to be among the first occupied by humans in the European Upper Paleolithic. Studies to understand early occupation of the island are mostly concentrated on the northern shores. Our project, Early Occupation of Sicily (EOS), focuses on southeastern Sicily so to address questions regarding dispersal to Mediterranean islands and Late Pleistocene landscapes and environments. Here, we present the initial results of our terrestrial and underwater surveys in combination with archival work and analyses of museum collections. In SE Sicily very few Upper Paleolithic sites have been excavated and analyzed using scientific methods. We have relocated and assessed ~20 caves and rock shelters identified between the 1870s and 1990s, studied museum collections, and collected raw material to reconstruct procurement patterns. To identify new sites, we conducted land and underwater surveys to reconstruct paleo-shorelines and past environments. We have identified three sites, two on land and one partially submerged, that still contain unexplored archaeological sediments, demonstrated in one instance through seismic tomography. This work shows the potential of re-examining minimally studied sites and materials to reconstruct mobility patterns and environmental impact of the first inhabitants of the island. [ABSTRACT FROM AUTHOR]

Published
2024
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32. Comparative Analysis of Middle Stone Age Artefacts in Africa (CoMSAfrica)

Author

douze, katja, groucutt, huw, leplongeon, alice, Pargeter, Justin, McNeil, Jess, scerri, eleanor, tryon, christian, shaw, matthew, will, manuel, Tryon, Christian, Ranhorn, Kathryn, mackay, alex, Kathryn, and brooks, alison

Abstract

CoMSAfrica's specific goal is to work towards a unified methodology for archaeologists working on African MSA stone tools that is replicable regardless of study region, time frame, site type and researcher, based on a transparent and objective approach.

Published
2022
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33. Replicability in Lithic Analysis

Author

Pargeter, Justin, primary, Brooks, Alison, additional, Douze, Katja, additional, Eren, Metin, additional, Groucutt, Huw S., additional, McNeil, Jessica, additional, Mackay, Alex, additional, Ranhorn, Kathryn, additional, Scerri, Eleanor, additional, Shaw, Matthew, additional, Tryon, Christian, additional, Will, Manuel, additional, and Leplongeon, Alice, additional

Published
2023
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46. Ancient DNA and deep population structure in sub-Saharan African foragers

Author

Zoología y biología celular animal, Zoologia eta animalia zelulen biologia, Lipson, Mark, Sawchuk, Elizabeth A., Thompson, Jessica C., Oppenheimer, Jonas, Tryon, Christian A., Ranhorn, Kathryn L., De Luna, Kathryn M., Sirak, Kendra A., Olalde Marquínez, Iñigo, Ambrose, Stanley H., Arthur, John W., Arthur, Kathryn J. W., Ayodo, George, Bertacchi, Alex, Cerezo Román, Jessica I., Culleton, Brendan J., Curtis, Matthew C., Davis, Jacob, Gidna, Agness O., Hanson, Annalys, Kaliba, Potiphar, Katongo, Maggie, Kwekason, Amandus, Laird, Myra F., Lewis, Jason, Mabulla, Audax Z. P., Mapemba, Fredrick, Morris, Alan, Mudenda, George, Mwafulirwa, Raphael, Mwangomba, Daudi, Ndiema, Emmanuel, Ogola, Christine, Schilt, Flora, Willoughby, Pamela R., Wright, David K., Zipkin, Andrew, Pinhasi, Ron, Kennett, Douglas J., Manthi, Fredrick Kyalo, Rohland, Nadin, Patterson, Nick, Reich, David, Prendergast, Mary E., Zoología y biología celular animal, Zoologia eta animalia zelulen biologia, Lipson, Mark, Sawchuk, Elizabeth A., Thompson, Jessica C., Oppenheimer, Jonas, Tryon, Christian A., Ranhorn, Kathryn L., De Luna, Kathryn M., Sirak, Kendra A., Olalde Marquínez, Iñigo, Ambrose, Stanley H., Arthur, John W., Arthur, Kathryn J. W., Ayodo, George, Bertacchi, Alex, Cerezo Román, Jessica I., Culleton, Brendan J., Curtis, Matthew C., Davis, Jacob, Gidna, Agness O., Hanson, Annalys, Kaliba, Potiphar, Katongo, Maggie, Kwekason, Amandus, Laird, Myra F., Lewis, Jason, Mabulla, Audax Z. P., Mapemba, Fredrick, Morris, Alan, Mudenda, George, Mwafulirwa, Raphael, Mwangomba, Daudi, Ndiema, Emmanuel, Ogola, Christine, Schilt, Flora, Willoughby, Pamela R., Wright, David K., Zipkin, Andrew, Pinhasi, Ron, Kennett, Douglas J., Manthi, Fredrick Kyalo, Rohland, Nadin, Patterson, Nick, Reich, David, and Prendergast, Mary E.

Abstract

[EN] Multiple lines of genetic and archaeological evidence suggest that there were major demographic changes in the terminal Late Pleistocene epoch and early Holocene epoch of sub-Saharan Africa(1-4). Inferences about this period are challenging to make because demographic shifts in the past 5,000 years have obscured the structures of more ancient populations(3,5). Here we present genome-wide ancient DNA data for six individuals from eastern and south-central Africa spanning the past approximately 18,000 years (doubling the time depth of sub-Saharan African ancient DNA), increase the data quality for 15 previously published ancient individuals and analyse these alongside data from 13 other published ancient individuals. The ancestry of the individuals in our study area can be modelled as a geographically structured mixture of three highly divergent source populations, probably reflecting Pleistocene interactions around 80-20 thousand years ago, including deeply diverged eastern and southern African lineages, plus a previously unappreciated ubiquitous distribution of ancestry that occurs in highest proportion today in central African rainforest hunter-gatherers. Once established, this structure remained highly stable, with limited long-range gene flow. These results provide a new line of genetic evidence in support of hypotheses that have emerged from archaeological analyses but remain contested, suggesting increasing regionalization at the end of the Pleistocene epoch. DNA analysis of 6 individuals from eastern and south-central Africa spanning the past approximately 18,000 years, and of 28 previously published ancient individuals, provides genetic evidence supporting hypotheses of increasing regionalization at the end of the Pleistocene.

Published
2022

49. Geoarchaeology and Heritage Management: Identifying and Quantifying Multi-Scalar Erosional Processes at Kisese II Rockshelter, Tanzania

Author

Patania, Ilaria, primary, Porter, Samantha T., additional, Keegan, William F., additional, Dihogo, Rukia, additional, Frank, Sara, additional, Lewis, Jason, additional, Mashaka, Husna, additional, Ogutu, Julius, additional, Skosey-Lalonde, Elena, additional, Tryon, Christian A., additional, Niespolo, Elizabeth M., additional, Colarossi, Debra, additional, and Ranhorn, Kathryn L., additional

Published
2022
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