Infraclass Tribotheria Butler 1978 (mammal)
Parent taxon: Theria according to A. O. Averianov and A. V. Lopatin 2011
See also Nessov 1985
Sister taxa: Eutheria, Metatheria, Pantotheria, Paratheria, Patagomaia
Subtaxa: Aegialodontia Kumlestes
Ecology: scansorial insectivore
Distribution:
• Cretaceous of the United Kingdom (1 collection), United States (2: Montana, Texas)
• Jurassic to Cretaceous of Morocco (1)
Total: 4 collections each including a single occurrence