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Thylamys
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. All species but T. macrurus store fat in their tails, although this is not necessarily true for all species in the genus. 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. Genetic studies indicate that the genus may have originated around 14 million years ago.
Species
Elegant Fat-tailed Mouse Opossum
GENUS
- KingdomAnimalia
- PhylumChordata
- ClassMammalia
- OrderDidelphimorphia
- FamilyDidelphidae
Observations162
Observations recorded3,380
鼠負鼠屬（Thylamys，白鼠負鼠），哺乳綱的一屬，而與鼠負鼠屬（白鼠負鼠）同科的動物尚有林負鼠屬（安氏負鼠）、短尾負鼠屬（短尾負鼠）等之數種哺乳動物。 取自“https://zh.wikipedia.org/w/index.php?title=鼠负鼠属&oldid=25425488” 分类：负鼠目隐藏分类：本地相关图片与维基数据相同含有拉丁語的條目
via GBIF
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Article
2 sectionsContents
- Taxonomy
- References
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. All species but T. macrurus store fat in their tails, although this is not necessarily true for all species in the genus. 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. Genetic studies indicate that the genus may have originated around 14 million years ago.
== Taxonomy == Cladogram of living Thylamys species. {{clade|style=font-size:100%;line-height:100%;width:700px; |1={{clade |1= |2= }} }}