Mammalia - Theriamorpha - Stylinodontidae
Synonyms: Calamodontidae, Ectoganidae
Parent taxon: Taeniodonta according to T. E. Williamson and S. L. Brusatte 2013
See also Carroll 1988, Cope 1882, Gadow 1898, Hay 1902, Hay 1930, Lucas et al. 1998, McKenna and Bell 1997, Rook and Hunter 2011 and Rose et al. 2012
Sister taxa: Conoryctidae, Onychodectes, Phanotherus, Stylinodontinae
Subtaxa: Calamodon Chungchienia Dryptodon Ectoganus Psittacotherium Schowalteria Stylinodon Wortmania
Distribution:
• Eocene to Oligocene of China (1 collection)
• Eocene of China (1), United States (67: Colorado, New Mexico, Texas, Utah, Wyoming)
• Clarkforkian of United States (25: Colorado, Montana, South Carolina, Wyoming)
• Paleocene of United States (48: California, Colorado, Maryland, Montana, New Mexico, South Carolina, Texas, Utah, Wyoming)
• Cretaceous of Canada (1: Alberta)
Total: 143 collections including 145 occurrences