ANTH 2301 Lecture Notes - Lecture 9: Foramen Magnum, Hominini, Tooth Enamel

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Paleoanthropology
Geologic time
o Precambrian
o Phanerozoic
o Paleozoic mammal-like reptiles
o Mesozoic by the end we have mammals
Paleocene Epoch
o Primate-like mammals 65-54 mya
Plesiadapis
Carpolestes simpsoni
Altiatlasius 60 mya
Eocene Epoch 54-34 mya
o Adapids (Notharctus)
o Omomyids (Tetonius)
Selective influences:
o Arboreal model
o Visual predation
o Fruit model
Amphipithecus lace Eocene the molar is larger than other prosimians
Prosemian origin of anthropoids
Prosemians (Strepsirhini) and Anthropoids (haplorini)
o Anthropoids: larger, more intelligent, better vision, social groups; diurnal
Oligocene 34-23 MYA
o Parapithecids
Apidium
o Oligopithecids mid-oligocene
o Propliopithecids
Aegyptopithecus
Monkeys eat local food- whatever vegetation is right there
Apes preferred foot so they searched for it
Miocene Epoch 23-5 mya “time of the apes”
o Who is the last common ancestor between hominini and pongids?
o Evolution is mosaic not all things evolve at the same time
o Proconsul
21-14 mya
Only found in Africa
Small
Fruit eating
Arboreal quadruped
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