ANT 350 Study Guide - Quiz Guide: Mental Foramen, Prognathism, Kyphosis
Document Summary
Give an overview of the possible hominin remains from africa that date between ~7 and 4. 4 million years ago. Discuss what we can and cannot determine about these remains and indicate what the major problems are with interpreting this material. Sahelanthropus tchadensis (tm 266-1: lothwagon, kenya, single, highly distorted cranium, half mandible, other fragments, isolated teeth, age 6. 4 7. 5 mya, primitive features: Flat mandibular fossa stress on front teeth. Marked supraorbital torus, strong postorbital constriction, low vault. Broken, hard to tell: hominin features. Less prognathism than apes, more kyphosis more vertical face. Supraorbital torus not set off by supratoral sulcus. P3s molar/premolar enamel thicker than living apes, but not as thick as early hominins. Two mandibles both mandibular corpi with molars: lothagam (knm-lt 329) Analysis of lothagam by a. kramer compared to early australopithecines, pan, and late miocene apes. Features uniquely shared with pan: 1 corpus base.
