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Pilbeam, David

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Pilbeam

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Pilbeam, David
Author's Publications: search.filters.isAuthorOfPublication.5285e01a-377a-4bc1-9d5a-989d174c4400Author: search.filters.author.Pilbeam, DavidSubject: search.filters.subject.australopithecus

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    Morphological Affinities of the Sahelanthropus Tchadensis (Late Miocene Hominid from Chad) Cranium

    (National Academy of Sciences, 2005) Guy, Franck; Lieberman, Daniel; Pilbeam, David; Ponce de Leon, Marcia; Likius, Andossa; Mackaye, Hassane T.; Vignaud, Patrick; Zollikofer, Christoph; Brunet, Michel

    The recent reconstruction of the Sahelanthropus tchadensis cranium (TM 266-01-60-1) provides an opportunity to examine in detail differences in cranial shape between this earliest-known hominid, African apes, and other hominid taxa. Here we compare the reconstruction of TM 266-01-60-1 with crania of African apes, humans, and several Pliocene hominids. The results not only confirm that TM 266-01-60-1 is a hominid but also reveal a unique mosaic of characters. The TM 266-01-60-1 reconstruction shares many primitive features with chimpanzees but overall is most similar to Australopithecus, particularly in the basicranium. However, TM 266-01-60-1 is distinctive in having the combination of a short subnasal region associated with a vertical upper face that projects substantially in front of the neurocranium. Further research is needed to determine the evolutionary relationships between Sahelanthropus and the known Miocene and Pliocene hominids.