Diictodon galeops

Diictodon were a therapsid herbivore, closely related to mammals, from the Permian period.

Real life
Diictodon lived from approximately 260 to 254 million years ago in what is now Africa and Asia (particularly South Africa), and would have shared many features with modern-day mammals. Diictodon made burrows in the earth of a depth of up to 5 feet (1.5 metres), and generally nested near flood plains, and they were generally solitary despite having burrows within close proximity to each other. Diictodon are believed to have probably fed on desert shrubs and/or roots in their burrows. Diictodon had no known rival or predator species in its niche, so it is thought that they probably competed with other species for food.