Effects of Past Global Change on Life (1995) / Chapter Skim
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Pages 200-203
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From page 200... ...
DAVID WEBB AND NEIL D OPDYKE African Land Mammal Record In Africa, much of the Cenozoic record of mammalian immigrations and faunal turnover episodes is interrupted by too many hiatuses to represent a coherent record of immigration episodes.
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From page 201... ...
Thus, they reason that observed isotopic changes wholly reflect waxing and waning of glacial ice. Figure 11.2 juxtaposes North American land mammal immigration episodes with the trace of Cenozoic oxygen isotope ratios based on planktic forams from equatorial regions.
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From page 202... ...
202 1 1~ 1 1 >1 1 <1 1/1 o3N30 NVIN019NIA~I _ ~0 Deanna _~ _ to NYlillHdW3H _ ~ NYlNOON3~10 1' O NVInOlsUva N~aH0~1~3H ~ o .
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From page 203... ...
The latter record, more fully 203 MAMMAL AGE IMMIGRATION EPISODES . POSITIVE ISOTOPIC I EVENTS FIGURE 11.3 Land mammal immigrations in the Miocene of North America, including first-order (triangles)
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