Mammalia - Theriamorpha - Herpetotheriidae
Alternative spelling: Herpetotheriinae
Parent taxon: Marsupialia according to G. P. Wilson et al. 2016
See also Beck et al. 2008, Case et al. 2004, Gunnell 2010, Hooker 1996, Horovitz et al. 2009, Johanson 1996, Korth 1994, Korth et al. 2022, McKenna and Bell 1997, Rose et al. 2012, Sánchez-Villagra et al. 2007, Thewissen et al. 2001 and Williamson et al. 2012
Sister taxa: Marsupicarnivora, Phalangistadae, Macrotarsi, Leptodactyla
Subtaxa: Amphiperatherium Asiadidelphis Copedelphys Galatiadelphys Golerdelphys Herpetotherium Nortedelphys Peratherium Rumiodon Swaindelphys Thylacodon
Distribution:
• Miocene of France (1 collection), Germany (10), Spain (7), Uganda (1), United States (4: California, South Dakota, Texas)
• Harrisonian of United States (9: Florida, Nebraska, Texas)
• Arikareean of United States (19: California, Florida, Montana, Nebraska, Oregon, South Dakota)
• Oligocene to Miocene of Germany (1)
• Oligocene of Belgium (1), Bosnia and Herzegovina (1), Canada (3: Saskatchewan), the Czech Republic (1), Egypt (1), France (14), Germany (9), Oman (1), Pakistan (1), Peru (2), Serbia and Montenegro (4), Switzerland (2), United States (36: Colorado, Florida, Montana, Nebraska, Oregon, South Dakota, Wyoming)
• Eocene to Oligocene of France (1), Peru (1), United States (1: Nebraska)
• Eocene of Belgium (2), Brazil (1), Canada (8: Saskatchewan), France (25), Germany (1), Italy (1), Kazakhstan (1), Pakistan (1), Portugal (2), Romania (1), Serbia and Montenegro (1), Spain (6), Switzerland (3), Turkey (2), the United Kingdom (21), United States (141: California, Colorado, Mississippi, Montana, Nebraska, North Dakota, Texas, Utah, Wyoming)
• Paleocene of United States (26: California, Colorado, Montana, New Mexico, Wyoming)
• Cretaceous of Canada (4: Alberta, Saskatchewan), United States (9: Colorado, Montana, South Dakota, Wyoming)
Total: 387 collections including 504 occurrences