Tetraclaenodon

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Tetraclaenodon Temporal range: Paleocene 61.7–56.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Family:	†Phenacodontidae
Genus:	†Tetraclaenodon Scott, 1892
Species[1][2]
†Tetraclaenodon puercensis (Cope, 1881) †Tetraclaenodon septentrionalis Thewissen, 1990

Tetraclaenodon was a genus of small and early ungulate mammals that was part of the Phenacodontidae family.^[3] It is the oldest and most primitive phenacodontid.^[4] Its fossils known from the Nacimiento Formation, New Mexico. In 2012, Tetraclaenodon was defined as the basalmost member of the clade containing "Phenacodontidae" and Altungulata.^[4]

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