Prehistoric Life Prehistoric Secrets in Stone The Earliest Fossils The Silurian Reef Trilobites Fish The Coal Forests Early Reptiles and Amphibians Sea Reptiles Flying Reptiles The Teeming Seas Hunting Dinosaurs Biggest Dinosaurs Two-Footed Plant Eaters Plated and Armoured Dinosaurs Horned Dinosaurs The Mammal Age Dawns Grassland Mammals The Ice Age

Choose a Page:Early Reptiles and AmphibiansReptile EvolutionWestlothianaDimetrodonFootprints*Eryops*ThecodontianCynognathusIchthyosaur BackbonesBaby IchthyosaurIchthyosaur JawsMosasaurusTooth Marks Eryops In Permian times some of the big amphibians, such as Eryops, had huge heads, sometimes more than 91cm long.   Previous: Back Book: Prehistoric Life Section: Prehistoric Chapter: Early Reptiles and Amphibians