ANTH 1013 Lecture Notes - Lecture 20: Tugen Hills, Foramen Magnum, Orrorin
19 May 2017
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Document Summary
The human and chimp lineages split 6-8 mya. Where are hominins found in africa: the rift vally, the afar triangle/ethiopia, lake turkana/kenya, tanzania, chad, central africa, south africa. Sahelanthropus tchadensis: sahel (sahara), anthropus (human)-------tchad (chad), ensis (originating. Initial discovery: 2004: discoverer: michel brunet, distribution (so far): chad, nickname: toumai, temporal range: 7 mya, ape-like: Small canine-not honed: reconstruction based on ct scan: relative to bicarotid line, foramen. Magnum is in an overlap between chimps/humans (human like according to ct reconstruction: features shared with younger hominins: Steep occipital plane rare in other hominins. Very warped cranium (hard to take measurements: conclusion: may be the oldest evidence for hominins. Orrorin tugenensis: orrorin (1st human in tugen language)----tugen (tugen hills, kenya), ensis (originating from) Important localities: tugen hills, kenya: discoverer: martin pickford & brigitte senut, distribution (so far): kenya, nickname: millenium man, temporal range: 6 mya, hominin-like: Canine not as large as apes not honed.
