Review Miocene 2010

Review Miocene 2010 - prosimians earliest, then anthropoids...

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Review of Miocene 23-5.5 mya Are the continents still moving around? They are pretty much in the current locations except for the Americas
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What sets the early Miocene apart from the preceding Oligocene epoch? Oligocene was a cooling trend. Early Miocene (23-16 mya) is a change in the environment: warm and moist
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What happens in the early Miocene that is relevant to tracing the beginnings of human lineage? The first hominoids (ape/human lineage splits off from Old World monkey lineage) Proconsul ( abundant in Africa) probably last ancestor to both Old World monkeys (Cercopithecoids)and apes/humans (Hominoids)
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Epoch 65 mya 53 mya 36 mya 23 mya 1.8 mya (http://www.ucmp.berkeley.edu/cenozoic/cenozoic.html; 22 Feb 2005) 5.5 mya Geologic Time Scale archaic primates (disputed) (Plesiadapiforms) Undisputed primates:
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Unformatted text preview: prosimians earliest, then anthropoids Anthropoids proliferate: Platyrrhine/Catarrhine split Late Eocene: Catopithecus Early: Cercopithecoid/Hominoid split How do the teeth of Hominoids differ? Y-5 cusp pattern on molars What happened with the climate during the Late Miocene? Terminal Miocene Event: cooling trend caused aridity, and Africa went from all forest to lot of grassland Within the hominoids, what is the order of splitting away into distinct lineages? 1. Orangutan lineage ( Sivapithecus ) around 13 mya 2. Gorilla lineage around 9-7 mya 3. Humans (hominids) around 5-6 mya during the Terminal Miocene Event when there is a fossil gap Cladistic tree Based on order of evolutionary branching 13 mya 6-5 mya Terminal Miocene Event <1 mya 9-7 mya?...
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This note was uploaded on 10/04/2011 for the course ANTH 101 taught by Professor Simmons during the Spring '06 term at South Carolina.

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Review Miocene 2010 - prosimians earliest, then anthropoids...

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