ANT101H5 Lecture 11: ANT101 Lecture 11 - Hominin Orgins Cont
Document Summary
We must know which are in south and which are in north. We must know which are gracile and which are robust. Whe(cid:374) they li(cid:448)ed, (cid:449)hat are they"re traits, (cid:449)ho fou(cid:374)d the(cid:373) Limbs/locomotion: bipedal, thick bones prominent muscle markings. Large sagittal crest temporalis muscle: broad vertical face. Large masseter muscles which help us chew from specialized diet: massive brow ridge. Diet and dentition: large palate and premolars. Causes large projection in cranium: massive flat molars, with crowding of front teeth. Huge retro molar space: deep jaws, herbivore. Lake turkana, kenya, east africa (1985) 2. 5 mya. Hyper robust: broad face, massive projection of the upper face, very large palate, large area back teeth. Primitive traits: cranial capacity 410 cc (wt 17000, compound crest, prognathic (long snout ) First find: olduvai gorge (1959, mary leakey, originally called, (cid:862)zinjanthropu boi ei(cid:863) (cid:271)y louis leakey, 1. 75 mya. Characteristics of a. boisei: large body size (34 49 kg, bones thick and robust.
