W10_103_11b_CenozoicShort

W10_103_11b_CenozoicShort - Cenozoic Mammals and the Modern...

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Cenozoic Mammals and the Modern World Era Age (Myrs) Epoch 0.01 Holocene 1.8 Pleistocene 5.3 Pliocene 23.8 Miocene 33.6 Oligocene 54.8 Eocene 65 Paleocene 144 206 248 290 323 354 417 443 490 543 2500 3800 P r e c a m b r i a n P h a n e r o z o i c Eon Proterozoic Archean Hadean Period Quaternary Tertiary Neogene Paleocene Mississippian C e n o z o i c M e s o z o i c P a l e o z o i c Cretaceous Jurassic Age of the Earth 4600 Myrs (4.6 Byrs) Source: Geological Society of America (1999) Geologic Time Scale Devonian Silurian Ordivician Cambrian Triassic Permian Pennsylvanian Cenozoic 65-0 Myr
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Highlights of the Cenozoic: Geology 1. Continents move into their current con f gurations. (Western NA remains active.) 2. Tethys Sea closes with the Alpine/Himalayan Orogeny. 3. Minor sea level F uctuations 4. Temperature peaks in the Eocene and drops through the Pliocene/Pleistocene Ice Age. Late Cretaceous
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Early Eocene Late Eocene
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Early Miocene Late Miocene
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Separation of Antarctica Climate Alpine/Himalayan Orogeny & the Closing of the Tethys Sea About 40 Myrs ago
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This note was uploaded on 01/11/2012 for the course GEO 103 taught by Professor Robviens during the Winter '10 term at Bellevue College.

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W10_103_11b_CenozoicShort - Cenozoic Mammals and the Modern...

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