The Eocene is the second epoch of the Cenozoic. The Eocene started approximately 56 million years ago, and lasted roughly 20 million years. During this epoch the first primates that resemble living species evolved.
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humanorigins.si.edu/faq/gt/cenozoic/eocene.htm
humanorigins.si.edu/faq/gt/cenozoic/eocene.htm
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The Eocene epoch is part of the Tertiary Period in the Cenozoic Era, and lasted from about 54.8 to 33.7 million years ago (mya). The oldest known fossils of most of the modern orders of mammals appear in a brief period during the Early Eocene and all were small, ... The Eocene Epoch is part of the Cenozoic Era.
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www.ucmp.berkeley.edu/tertiary/eoc.html
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The Eocene Epoch of the Paleogene Period: 38-54 million years ago ... They were all small to begin with, about the size of a modern domestic cat, but some groups, especially the Titanotheres, quickly grew to huge size, before suddenly dying out in a mass-extinction of archaic forms at the end of the Eocene (it used to...
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www.palaeos.com/Cenozoic/Eocene/Eocene.htm
www.palaeos.com/Cenozoic/Eocene/Eocene.htm
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Many groups of "modern" animals made their first appearance in the eocene. These include the first members of the orders of elephants, bats, whales, even-toed hooved Although we can begin to recognize certain types of mammals, such as carnivores and perissodactyls, they barely resemble their modern counterparts.
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www.flmnh.ufl.edu/vertpaleo/fhc/eo2.htm
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Encyclopedia article about Eocene Epoch. Information about Eocene Epoch in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary. ... Shaw said a lot of the fossils that are found in the area are from the Eocene Epoch, which dates from 55 million to 60 million years ago.
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encyclopedia2.thefreedictionary.com/Eocene+epoch
encyclopedia2.thefreedictionary.com/Eocene+epoch
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Eocene Epoch (54-33 mya) ... Early in the Eocene, the global climate remains warm. As the continents move ever closer to their present-day positions, this plate activity alters ocean and air circulation patterns. By the end of the Eocene, temperatures cool considerably and a drying period commences.
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www.pbs.org/wgbh/evolution/change/deeptime/eocene.html
www.pbs.org/wgbh/evolution/change/deeptime/eocene.html
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Period Subperiod Epoch Age Dates (m.y.) ... Eocene Priabonian 37.2-33.9 ... The Holocene Epoch officially begins 10,000 years ago as measured by radiocarbon; unfortunately the radiocarbon scale is now known to be 1500 years too young at that point in time. There is a proposal to add an Anthropocene Epoch on top of the...
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geology.about.com/library/bl/time/blczoictime.htm
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Whales and horses - The Eocene epoch (55.5 m.y. - 33.7m.y.) ... Fossils of both primitive single celled and more advanced multicellular organisms begin to appear in abundance in rocks from this era. The name, proterozoic, means "early life."
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sci.waikato.ac.nz/evolution/EvolutionOfLife.shtml
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Eocene - The first grasses appeared in the Eocene Epoch (from about 54 to 37 million years ago) with growth near the root as opposed to the tip, providing a vastly expanded and renewable food resource for the herbovores;
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www.fossilmuseum.net/Paleobiology/Cenozoic_Paleobiology...
www.fossilmuseum.net/Paleobiology/Cenozoic_Paleobiology.htm
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