paleocene :

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paleocene

pay lee uh seen

  • n  from 63 million to 58 million years ago; appearance of birds and earliest mammals
News & Articles

  • Scientists Discover Second Instance Of Global Warming-Caused Mammal Shrinkage
    redOrbit Staff & Wire Reports - Your Universe Online While scientists have known for several years that some mammals became smaller during a period of warming known as the Paleocene-Eocene Thermal Maximum (PETM), researchers from the University of Michigan have found a second instance of mammalian “dwarfing” attributable to increasing temperatures. During the PETM, which occurred approximately ...
    Nov. 3, 2013 - redOrbit

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