Periptychidae is a family of Cretaceous-Paleocene placental mammals, known definitively only from North America. The family is part of a radiation of...

Clade: Paraxonia Order: †Arctocyonia? Order: †Mesonychia? Family: †Periptychidae? Order: Artiodactyla (including Cetacea) Synonyms Cetungulata Irwin...

typical series of 44 teeth was developed in each, but whereas in the Periptychidae, the upper molars were bunodont and tritubercular, in the Pantolambdidae...

Animalia Phylum: Chordata Class: Mammalia (unranked): Paraxonia Family: †Periptychidae Genus: †Anisonchanus Strand, 1928 Type species †Anisonchanus sectorius...

Nyctitheriidae, Oxyclaenidae, Palaeoryctidae, Pantolestidae, Pentacodontidae, Periptychidae and Triisodontidae. In addition various "hoofed mammals" like the mesonychians...

Periptychus is an extinct genus of mammal belonging to the family Periptychidae. It lived from the Early to Late Paleocene and its fossil remains have...

is an extinct genus of terrestrial herbivorous mammal of the family Periptychidae, endemic to North America during the Early Paleocene subepochs (66—63...

Denver Formation  United States ( Colorado) A member of the family Periptychidae belonging to the subfamily Conacodontinae. The type species is M. lydae...

that evolved during the Cretaceous. Recently a close relationship with Periptychidae has been suggested. This would make pantodonts crown-group ungulate...

Oxyacodon is an extinct genus of condylarth of the family Periptychidae endemic to North America during the Early Paleocene living from 66 to 63.3 mya...