Výsledky vyhledávání - "Francis H. Brown"

Late Middle Pleistocene Elephants from Natodomeri, Kenya and the Disappearance of Elephas (Proboscidea, Mammalia) in Africa

Autor: J. Michael Plavcan, Thure E. Cerling, Fredrick K. Manthi, William J. Sanders, Francis H. Brown

Publikováno v: Journal of Mammalian Evolution. 27:483-495

Comparative morphometric study of recently recovered fossil elephant molars from Natodomeri, Kenya identifies them as belonging to Elephas jolensis and confirms the presence of this species in Members I and II of the Kibish Formation. Improved datati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6dc9b1efd16f133f59a8ae9f9d3b4e7
https://doi.org/10.1007/s10914-019-09474-9

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Co-occurrence of Acheulian and Oldowan artifacts with Homo erectus cranial fossils from Gona, Afar, Ethiopia

Autor: Sileshi Semaw, Nelia Dunbar, Gary E. Stinchcomb, Melanie Everett, Jay Quade, Isabel Cáceres, Naomi E. Levin, Scott W. Simpson, William C. McIntosh, Dietrich Stout, Ralph L. Holloway, Robert F. Butler, Francis H. Brown, Michael J. Rogers

Publikováno v: Science Advances. 6

Although stone tools generally co-occur with early members of the genus Homo, they are rarely found in direct association with hominins. We report that both Acheulian and Oldowan artifacts and Homo erectus crania were found in close association at 1.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c1d2357fd755b5f3c946e341247c30e
https://doi.org/10.1126/sciadv.aaw4694

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Co-occurrence of Acheulian and Oldowan artifacts with

Autor: Sileshi, Semaw, Michael J, Rogers, Scott W, Simpson, Naomi E, Levin, Jay, Quade, Nelia, Dunbar, William C, McIntosh, Isabel, Cáceres, Gary E, Stinchcomb, Ralph L, Holloway, Francis H, Brown, Robert F, Butler, Dietrich, Stout, Melanie, Everett

Publikováno v: Science Advances

Homo erectus was anatomically variable and behaviorally flexible using both Oldowan and Acheulian artifacts.
Although stone tools generally co-occur with early members of the genus Homo, they are rarely found in direct association with hominins.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::66ce5a08485e0ed19e68667dca1da442
https://pubmed.ncbi.nlm.nih.gov/32181331

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An initial survey of the composition of Ethiopian obsidian

Autor: Agazi Negash, Francis H. Brown, Barbara P. Nash

Publikováno v: Journal of African Earth Sciences. 172:103977

Ethiopia is rich in obsidian and prehistoric peoples were utilizing it to make artifacts since at least the Early Stone Age. The unique chemical compositions of obsidian are of considerable interest to archaeologists when obsidian artifacts are recov

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f68edd3215973ab22d2436f71aa74cb5
https://doi.org/10.1016/j.jafrearsci.2020.103977

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Kantis: A new Australopithecus site on the shoulders of the Rift Valley near Nairobi, Kenya

Autor: Soichiro Kusaka, Yutaka Kunimatsu, Takafumi Hirata, Samuel Muteti, Christine Omuombo, Masato Nakatsukasa, Tohru Danhara, Mototaka Saneyoshi, René Bobe, Hideki Iwano, Brian R. Jicha, Emma Mbua, Francis H. Brown, Tetsuya Sakai, Jean-Renaud Boisserie, Akira Hayashida, Denis Geraads, Yoshihiro Sawada

Publikováno v: Journal of Human Evolution
Journal of Human Evolution, Elsevier, 2016, pp.28-44. ⟨10.1016/j.jhevol.2016.01.006⟩

Most Plio-Pleistocene sites in the Gregory Rift Valley that have yielded abundant fossil hominins lie on the Rift Valley floor. Here we report a new Pliocene site, Kantis, on the shoulder of the Gregory Rift Valley, which extends the geographical ran

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52da62c7b376d9d5b4b0647844b788ef
https://doi.org/10.1016/j.jhevol.2016.01.006

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Vegetation of the Koobi Fora Region Northeast of Lake Turkana, Marsabit County, Northern Kenya

Autor: Francis H. Brown, John Kimeu Mbaluka

Publikováno v: Journal of East African Natural History; Vol 105, No 1 (2016); 21-50

The Koobi Fora region east of Lake Turkana in northern Kenya ranges in elevation from ca. 360 to 560 m, has a mean annual temperature of ca. 32ºC, and rainfall of ca. 130 mm per year. The area, much of which lies within Sibiloi National Park, suppor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e129ae81e86a47cc3b8a2ad434aa040
https://doi.org/10.2982/028.105.0101

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New high-precision 40Ar/39Ar ages on Oligocene volcanic rocks of northwestern Kenya

Autor: Brian R. Jicha, Francis H. Brown

Publikováno v: Journal of African Earth Sciences. 114:63-66

New, high-precision 40Ar/39Ar ages from volcanic rocks in northwestern Kenya are provided for some areas of exposure in this remote area. We report seven 40Ar/39 Ar ages generated from single crystal total fusion experiments on alkali feldspar separa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7bcd6a742cbed4ea61ae2faeb123dafd
https://doi.org/10.1016/j.jafrearsci.2015.11.012

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An age for Kajong, a Miocene fossil site east of Lake Turkana, Kenya

Autor: Brian R. Jicha, Francis H. Brown, Richard E. Leakey

Publikováno v: Journal of African Earth Sciences. 114:74-77

The Kajong Formation in Marsabit District, northern Kenya has yielded a Miocene mammalian fauna consisting of nine taxa. It is capped by a basalt 40 Ar/ 39 Ar dated at 19.1 ± 0.1 Ma, and a volcanic clast from a conglomerate within the formation yiel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::637a7847b87a954a88c290507c87fa6e
https://doi.org/10.1016/j.jafrearsci.2015.11.017

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