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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, under 10 kg. Both groups of modern ungulates...
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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 ... The name Eocene means the "dawn of recent life" Originally the Eocene was the first epoch of the Cenozoic, but then the Paleocene was erected as an earlier epoch.
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www.palaeos.com/Cenozoic/Eocene/Eocene.htm
www.palaeos.com/Cenozoic/Eocene/Eocene.htm
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During the Early Cenozoic India began to Collide with Asia. ... 50 - 55 million years ago India began to collide with Asia forming the Tibetan plateau and Himalayas. Australia, which was attached to Antarctica, began to move rapidly northward. ... Return to Earth History...
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www.scotese.com/newpage9.htm
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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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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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Primitive Eocene Whales (Basilosaurus cetoides) ... Basilosaurusis one of the most common of the primitive whales, called "archaeocetes" by paleontologists, that have found in exposures of Middle to Upper Eocene, 35 to 40 million year old, marine sediments within central Louisiana.
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www.intersurf.com/~chalcedony/Basilosaurus1.html
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These web pages contain a virtual collection of Eocene and Oligocene Fossils from the UK. ... A Collection of Eocene and Oligocene Fossils compiled by Alan Morton...
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Early Eocene Lakes of British Columbi ... Multiple proxies indicate that carbon dioxide levels during the warm early Eocene (about 55 million years ago) exceeded 900 ppm, with levels falling below twice the pre-industrial level in the late Eocene to middle Oligocene (about 30 million years ago) and attaining near...
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geoweb.princeton.edu/people/maloof/eocene.html
geoweb.princeton.edu/people/maloof/eocene.html
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