Paleogene Land Mammal Faunas of South America; a response to global climatic changes and indigenous floral diversity
- Woodburne, Michael O.
- Goin, Francisco Javier
- Bond, Mariano
- Carlini, Alfredo Armando
- Gelfo, Javier Nicolás
- López, Guillermo Marcos
- Iglesias, Ari
- Zimicz, Ana Natalia
DOIAbstract
An appraisal of Paleogene floral and land mammal faunal dynamics in South America suggests that both biotic elements responded at rate and extent generally comparable to that portrayed by the global climate pattern of the interval. A major difference in the South American record is the initial as well as subsequent much greater diversity of both Neotropical and Austral floras relative to North American counterparts. Conversely, the concurrent mammal faunas in South America did not match, much less exceed, the diversity seen to the north. It appears unlikely that this difference is solely due to the virtual absence of immigrants subsequent to the initial dispersal of mammals to South America, and cannot be explained solely by the different c...
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