Amphilestidae

The Amphilestidae are a family of Mesozoic mammals, generally regarded as eutriconodonts. They may form a paraphyletic or polyphyletic assemblage, though they share with gobiconodontids their similar tooth occlusion patterns and may be especially closely related to them. They occur from the Late Jurassic to Cenomanian, and have a distribution across both Laurasian landmasses and Gondwanan, with the Tanzanian Tendagurodon from the Tendaguru Formation and the Argentinian Condorodon being among the earliest representatives of this group.