Pleistocene Bats from Cave Deposits in Bahia, Brazil
| Autor: | Nicholas J. Czaplewski, Cástor Cartelle, Castor Cartelle |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
geography
geography.geographical_feature_category Ecology biology Coprolite Desmodus draculae biology.organism_classification Nyctinomops macrotis Cave Mormoops megalophylla Genetics Desmodus rotundus Diphylla ecaudata Animal Science and Zoology Mimon Ecology Evolution Behavior and Systematics Nature and Landscape Conservation |
| Zdroj: | Journal of Mammalogy. 79:784 |
| ISSN: | 0022-2372 |
| DOI: | 10.2307/1383089 |
| Popis: | Twenty-seven taxa of bats from late Pleistocene fossils originated from five caves in Bahia, Brazil. In one cave, humeri of Mormoops megalophylla were dated radiometrically to 20,060 ± 290 years ago. In another cave, a cranium of Desmodus rotundus was found adhering to the underside of a coprolite of a sloth ( Nothrotherium ) that had a radiometric age of 12,200 ± 120 radiocarbon years ago. Among taxa represented by the fossils were one extinct species ( Desmodus draculae ), the first South American fossil records for Mimon bennettii, Furipterus horrens , and Tadarida brasiliensis , and the first Brazilian fossil records for M. megalophylla, Phyllostomus discolor, Diphylla ecaudata , and Nyctinomops macrotis . All caves but one occur within the semiarid Caatinga biome today. However, fossil occurrences of several species ( M. megalophylla, M. bennettii , and Eptesicus fuscus ), which today select moister habitats or humid caves, suggest that conditions in the area during part of the late Pleistocene were wetter than at present. |
| Databáze: | OpenAIRE |
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