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Unformatted text preview: 2-11-10Primate EvolutionTerciary era: Primates evolve into what they are todayWhy Did Primates Emerge?Arboreal hypothesis1.Primate traits such as grasping hands and binocular vision were adaptations to life in the treesThe Tertiary 65,000,000 to 2,000,000 years ago1.Paleocene proto primates (65 to 55 m.y.a.)2.Eocene promisian like primates (55 to 34 m.y.a)3.Oligocene first anthropoids (34 to 23 m.y.a.)4.Miocene hominoids widespread (23 to 5 m.y.a.)5.Pliocene hominids (5 to 2 m.y.a.)Paleocene Primates ? 1.65-55 mya2.Plesiadapiforms3.Found in NA, europe, asia, and possibly Africa4.Possivly a seperate order but still potentially related Eocene Primates1.55-34 mya2.Euprimates: the first true primates3.Ancestral to modern prosimians4.Adapids- related to modern lemurs5.Omomyids- related to modern tarsiersOligocene Primates1.The Oligocene was a period of global cooling and widespread plant and animal extinctions 2.Anthropoids (monkeys) appear, and some prosimians survive...
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- Spring '08