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Unformatted text preview: ftermath of Interchange Only 10% of N.A. mammalian biota come from S.A. Only surviving S.A. mammals in N.A. Didelphis
Erethizon Currently 50% of S.A. mammalian biota come from N.A. (South America becomes partly allochthonous) Aftermath of Interchange
In South America The End References
References Janis,C. 1993. Tertiary Mammal Evolution in the Context of Changing Climates, Vegetation, and Tectonic Events. Annual Review of Ecology and Systematics 24:467500.
The Great American Interchange website. Accesse...
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- Spring '09