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Effects of Past Global Change on Life (1995) / Chapter Skim
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Pages 121-122

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From page 121...
... Fluctuations in the composition of the planktonic foraminiferal fauna of the Mediterranean indicate oscillating temperatures for this interval (Thunell, 19791. Fossils in transgressive shallow marine strata on the north slope of Alaska reveal that sea otters were again present along the margin of the Arctic
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From page 122...
... Several features of this record are worth noting. First, regular cycles of rather small amplitude began at least as early as 2.7 Ma, and scattered ice-rafted debris in the North Atlantic and Norwegian Sea confirms that small ice sheets existed between 2.7 and 2.4 Ma (Jensen FIGURE 7.2 Benthic foram~n~feral NO from North Atlantic Site 607 (after Raymo et al., 1990)
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Key Terms

  • oxygen isotope
  • north atlantic
  • late pliocene
  • oxygen isotopic
  • ice sheets

  • north slope
  • der hammen
  • van der
  • planktonic foraminiferal


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