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Effects of Past Global Change on Life (1995) / Chapter Skim
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Pages 5-6

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From page 5...
... By Late Eocene time, woodland savanna had already become the dominant vegetation of midcontinental North America (see Webb and Opdyke, Chapter 111. Whether the particular temporal pattern observed for North America characterized other continents remains uncertain, in part because of uncertain dating and in part because in some regions, such as Australia, a floral record is missing for much of the Eocene.
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From page 6...
... / ,~_northem California //Pacific Northwest Southern Alaska ~ -_ 25 CL 20 E o 1 5 c O ~ o incipient circum-Antarctic current, which began to isolate the Antarctic continent from warm waters flowing from the north. The resulting cooling of surface waters led to the formation of cool deep waters.
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Key Terms

  • tropical temperature
  • deep waters
  • north atlantic
  • midcontinental north
  • woodland savanna

  • tropical temperatures
  • late eocene
  • environmental changes
  • surface water
  • warm water

  • water masses


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