Dicynodont

Dicynodontia is a taxon of anomodont therapsids or mammal-like reptiles with beginnings in the mid-Permian, which were dominant from Late Permian through the Triassic, with a few surviving into the Early Cretaceous. Dicynodonts were small to large herbivorous animals with two tusks, hence their name, which means 'two dog tooth'. They are also the most successful and diverse of the non-mammalian therapsids, with over 70 genera known, varying from rat- to ox-sized.