Parent taxon: Eutheria according to H. Gadow 1898
Sister taxa: Acreodi, Acristatherium, Ambilestes, Ambolestes, Arctocyonidae, Asioryctitheria, Bibymalagasia, Cimolesta, Didymoconida, Durlstodon, Durlstotherium, Endotherium, Eomaia, Gliriformes, Heptaconodon, Heptaconodon dubium, Holoclemensiidae, Horolodectidae, Hovurlestes, Hyaenodonta, Insectivora, Juramaia, Kennalestoidea, Leptictida, Mingotheriidae, Montanalestes, Mutica, Nanocuridae, Notopterna, Notoungulata, Oligoryctidae, Pahelia, Palaeorycteropus, Paranyctoides, Paraxonia, Placentalia, Prokennalestes, Proteutheria, Prozalambdalestes, Quadripedes, Sahnitherium, Sazlestes, Scollardius, Sinodelphys, Taeniodonta, Therictoidea, Ungulata, Zalambdalestidae, Zhelestidae
Subtaxa: none
Ecology: scansorial insectivore
Distribution:
• Eocene of Canada (1: British Columbia collection), China (8), France (9), India (3), Japan (3), Mexico (1), Pakistan (2), the United Kingdom (1), United States (332: California, Colorado, New Jersey, New Mexico, Utah, Virginia, Wyoming)
• Paleocene of China (8), United States (49: Colorado, Wyoming)
Total: 417 collections including 446 occurrences