Dimetrodon Skeleton, juvenile Alamosaurus and a cultural increase in

and a cultural increase in environmental concerns

and thick noses

but belong to relatively small Protoanisopterans and Zygopterans (damselflies)

Unlike most modern birds Confuciusornis retained clawed fingers on its wings

The foot is 20 inches high x 22 inches long x 14 inches wide

Dimetrodon Skeleton, juvenile Alamosaurus and a cultural increase inJuvenile Dimetrodon Skeleton, Permian Of North America Dimetrodon (meaning two measure teeth) was a sail backed, meat eating animal that lived during the Permian Period, roughly 280 MYA years ago, before the dinosaurs evolved. It was a so called mammal like reptile, a pelycosaur; pelycosaurs were the ancestors of the mammals. Dimetrodon was a dominant carnivore during the Permian period, living mainly in swampy areas. Unlike their fellow non finned