Pelycosaurs
S
Susan H. GrayPelycosaurs were lizardlike creatures that inhabited Earth long before dinosaurs first appeared. From sail-backed Dimetrodon to tiny Archaeothyris, pelycosaurs shared characteristics of both mammals and reptiles. Learn about the prehistoric animals that preceded dinosaurs by several million years.
Publication
2011
Pages
36
Format
Publisher
The Child's World
Collection
Exploring Dinosaurs and Prehistoric Creatures
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