Cast of the skull of a gorgonopsid, a kind of therapsid or “mammal-like reptile.”
Souvenir postcard from the Chicago Natural History Museum (now The Field Museum) reproducing, in black and white, a painting by artist Charles R. Knight of Triassic-periood therapisids — three carnivorous Cynognathus about to gang up on a herbivorous Kannemeyria.
Postcard from Prehistoric Gardens on the southern Oregon Coast Highway, showing a life-sized statue of Cynognathus.
