†family Micropternodontidae (placental)
Mammalia - Theriamorpha - Micropternodontidae
Alternative spelling: Micropternodontinae
Parent taxon: Soricoidea according to G. F. Gunnell et al. 2008
See also Carroll 1988, Crochet 1974, Korth et al. 2022, Lopatin 2006 and Van Valen 1967
Sister taxa: Apternodontidae, Nyctitheriidae, Oligoryctidae, Parapternodontidae
Subtaxa: Clinopternodus Cryptoryctes Micropternodus Sinosinopa
Ecology: scansorial insectivore
Distribution:
• Oligocene of United States (2: Oregon, Wyoming collections)
• Eocene to Oligocene of United States (1: Nebraska)
• Eocene of Canada (1: Saskatchewan), China (1), United States (21: Montana, Nebraska, North Dakota, South Dakota, Utah, Wyoming)
Total: 26 collections including 33 occurrences