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Heptodon
''Heptodon'' is an extinct genus of tapir-type herbivore of the family ''Helaletidae'' endemic to North America during the Eocene epoch. It lived from 55.4—48.6 mya, existing for approximately .〔(PaleoBiology Database: ''Heptodon'', basic info )〕 ==Taxonomy== ''Heptodon'' was named by Cope (1882). It was considered paraphyletic by Colbert (2005). It was assigned to Helaletinae by Radinsky (1966); to Ceratomorpha by Cope (1882) and Colbert and Schoch (1998); to Heptodontidae by Holbrook (1999);〔L. T. Holbrook. 1999. The Phylogeny and classification of tapiromorph perissodactyls (Mammalia) . Cladistics 15(3):331-350〕 and to Tapiroidea by Colbert (2005). M. W. Colbert. 2005.〔M. W. Colbert and R. M. Schoch. 1998. Tapiroidea and other moropomorphs. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary mammals of North America 569-582〕
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