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Effects of Past Global Change on Life (1995) / Chapter Skim
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Pages 125-126

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From page 125...
... Extinction and emigration resulted in a severe impoverishment of modern mammalian faunas in the temperate zone of North America. The northward decline in diversity is especially pronounced today at latitudes above 38° (Webb, 19841.
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From page 126...
... Only a modest number of new bivalve species evolved during Late Pliocene and Pleistocene time. The extent to which climatic changes may have initiated some speciation in the Bivalvia remains to be investigated, but the onset of the ice age has been credited with triggering the origin of several new species of Western Atlantic ostracods (Cronin, 19881.
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Key Terms

  • north atlantic
  • mammalian faunas
  • late pliocene
  • global climatic
  • late miocene

  • mammalian fauna


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