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The Eocene is a geological epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period in the modern ...
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The Eocene was the second geological epoch in the Palaeogene, and by far the longest. It began 56 million years ago, and ended 33.9 million years ago with a ...
The Eocene Epoch, the middle epoch during the Paleogene Period of the Cenozoic Era. See also the preceding Category:Paleocene and the succeeding Category: ...
It was marked by large-scale extinction and floral and faunal turnover, although it was relatively minor in comparison to the largest mass extinctions.