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Taeniodonta ("banded teeth") is an extinct early group of cimolestid mammals known from the Palaeocene to the Eocene. Taeniodonts evolved quickly into highly specialized digging animals, and varied greatly in size, from rat-sized to species as large as a bear. Later species developed prominent front teeth and huge claws for digging and rooting. Some genera, like ''Stylinodon'', had ever-growing teeth. Two families belong to this group, Stylinodontidae and Conoryctidae. They were endemic to North America. The scarcity of taeniodont fossils can be explained by the fact that these animals probably lived in the drier parts of the continent where fossilization was less frequent. Taeniodonts may be related to Cimolesta, but they're unambiguously non-placental eutherians. ==Taxonomy== From Thomas E. Williamson and Stephen L. Brusatte (2013): * Order Cimolesta : * Suborder Taeniodonta :: *''Alveugena'' :: *''Schowalteria'' :: * ''Onychodectes'' :: * Family Conoryctidae ::: * ''Conoryctella'' ::: * ''Huerfanodon'' ::: * ''Conoryctes'' :: * Family Stylinodontidae ::: * ''Wortmania'' ::: * ''Psittacotherium'' ::: * ''Ectoganus'' ::: * ''Stylinodon'' 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「taeniodont」の詳細全文を読む スポンサード リンク
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