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edit locality LO-6N, Lomekwi

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Approximate age:3,500,000 years old=average of minimum (3.4 Ma) and maximum (3.6 Ma)

Date based on: K-Ar See map of sites with similar ages

Dating reference: Leakey, M. G., Spoor, F., Brown, F. H., Gathogo, P. N., Kiarie, C., Leakey, L. N., et al. (2001). New hominin genus from eastern Africa shows diverse middle Pliocene lineages. Nature, 410(6827), 433-440.

Hominids: Australopithecus afarensis       


Important specimens: distorted cranium KNM-WT 40000, right temporal bone KNM-WT 40001, right maxilla fragment KNM-WT 38343A

Notes: Kenyanthropus platyops type site. KNM-WT 40000

Location: Kataboi Member, West Turkana, Nachukui Formation, other platyops specimens (paratype) from lower Lomekwi Member, Kenya
Map location/coordinates reference: Leakey, M. G., Spoor, F., Brown, F. H., Gathogo, P. N., Kiarie, C., Leakey, L. N., et al. (2001). New hominin genus from eastern Africa shows diverse middle Pliocene lineages. Nature, 410(6827), 433-440.

Key references: Spoor, F., Leakey, M. G., & Leakey, L. N. (2010). Hominin diversity in the Middle Pliocene of eastern Africa: the maxilla of KNM-WT 40000. Phil. Trans. R. Soc. B 356(1556), 3377-3388. Abstract The 3.5-Myr-old hominin cranium KNM-WT 40000 from Lomekwi, west of Lake Turkana, has been assigned to a new hominin genus and species, Kenyanthropus platyops, on the basis of a unique combination of derived facial and primitive neurocranial features. Central to the diagnosis of K. platyops is the morphology of the maxilla, characterized by a flat and relatively orthognathic subnasal region, anteriorly placed zygomatic processes and small molars. To study this morphology in more detail, we compare the maxillae of African Plio-Pleistocene hominin fossils and samples of modern humans, chimpanzees and gorillas, using conventional and geometric morphometric methods. Computed tomography scans and detailed preparation of the KNM-WT 40000 maxilla enable comprehensive assessment of post-mortem changes, so that landmark data characterizing the morphology can be corrected for distortion. Based on a substantially larger comparative sample than previously available, the results of statistical analyses show that KNM-WT 40000 is indeed significantly different from and falls outside the known range of variation of species of Australopithecus and Paranthropus, contemporary Australopithecus afarensis in particular. These results support the attribution of KNM-WT 40000 to a separate species and the notion that hominin taxonomic diversity in Africa extends back well into the Middle Pliocene. presents precise geographic locations and current best date estimates for late Miocene, Pliocene, and Pleistocene sites with human ancestor (hominin) fossils and archaeology. Several interactive visual interfaces allow users to generate maps and tables that relate localities, fossils, tools, and evolutioanry events with geography and time. The data content is dynamic and is updated daily, as are new interface features. This site started as a course syllabus for Anthropology 3101: Human Evolution 2 at California State University, East Bay, and grew with each quarter it was used. Now has over 200 sites and hundreds of bibliographic citations. Check back often for updates. human evolution database paleoanthropology biological anthropology database physical anthropology human origins coordinates site locations location latitude longitude age Pleistocene database Quaternary database Pliocene Holocene evolutionary history site database geochronology hominin hominidae hominid hominini acheulean oldowan middle stone age mousterian paleolithic late stone age neolithic hominin database hominin DB hominin darabase hominin dayabase hominin datavase hominid darabase hominid dayabase hominid datavase hominid database hominid fossil database human origins database hominin database hominin fossil database hominid skull human ancestor database fossil human ancestors best paleoanthropology site best paleoanthropology database best hominin database best hominid database hominin site database hominid site database coordinates map hominid site map hominin site map paleoanthropology site coordinates human evolution database human origins database fossil record database