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Thylamys
Genus of marsupials From Wikipedia, the free encyclopedia
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Thylamys is a genus of opossums in the family Didelphidae. The premaxillae are rounded rather than pointed. The females lack a pouch. The females' nipples are arranged in two symmetrical rows on the abdomen.[2] All species but T. macrurus store fat in their tails,[3] although this is not necessarily true for all species in the genus.[4] Fossils belonging to the genus date back to the Miocene, with the oldest specimens being found in the Cerro Azul Formation of Argentina and the Honda Group of Colombia.[5] Genetic studies indicate that the genus may have originated around 14 million years ago.[6]
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Taxonomy
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Cladogram of living Thylamys species.[7][8]
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Other species of Thylamys.[11]
- †T. colombianus Goin 1997
- T. fenestrae (Marelli 1932) [12]
- †T. minutus Goin 1997
- †T. pinei Goin, Montalvo & Visconti 2000
- †T. zettii Goin 1997
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