ANTH 110 1nd Edition Lecture 19 Outline of Last Lecture I. Primate and Hominin OriginsA. Cenozoic Erai. Tertiary Periodii. Quaternary Period II. Continental DrifOutline of Current Lecture I. The Epochs of the Cenozoic EraA. PaleoceneB. EoceneC. Oligocene Current Lecture I. The Epochs of the Cenozoic EraIt was during the Cenozoic Era that most of primate evolution unfolded. Within the Cenozoic Era, there are 7 Epochs. They are:1. Paleocene - primate like mammals-proto primates2. Eocene - first true primates, Prosimians (and old way of classifying lemurs, lorises, and tarsiers.)3. Oligocene - early Catarrhines, precursors to monkeys and apes emerge4. Miocene - monkeys and apes emerge, first humanlike creatures appear5. Pliocene - early humans diversify These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.6. Pleistocene - early homo develops7. Holocene - the present EpochA. Paleocene (65-55 m.y.a)- Archaic Primate like creatures - photo primates- A major radiation of archaic primates, Plesiadapiforms, occurred in 65-52 mya. - These creatures are best known from fossil finds in the American West. (Montana and Wyoming)B. Eocene (33-56 m.y.a)- Primates of Modern Aspect - P.O.M.A euprimates . - It was warmer, wetter, more tropical than today. - Primates would have resided in the north (N. America and Europe).- Adapids and Omomyids were the two groups of primates in the Eocene Epoch.- Lemur-like Adapoids: Most primative of the euprimates, recognized by their dental anatomy (2.1.4.3) C. Oligocene (33-23)- Cooler and drier than eocene but still warmer than today- Early Anthropoid Radiation - During this time, the Americas are starting to move west, constantly shifing.- Apidiums existed during the Oligocene Epoch. - Apidium (looks like a "fat squirrel") - the anthropoids most closely related to all monkeys. - Aegyptopithecus ("fat cat") - genus has historically been proposed as the ancestor of both old world monkeys and hominoids (apes).- Platyrrhines (Apidium, New World Monkey ancestors) in New World around 30 m.y.a, but how?- Continental relationships during late Eocene (rafing, island hopping)- The narrow gap between South America and
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