Labels:text | screenshot | font OCR: TRIASSIC PERIOD 248-208 MYA Many different reptiles evolved during the Triassic Period, including the dinosaurs. Shrewlike mammals, crocodiles, tortoises, frogs, and lizards appeared. Pterosaurs (flying reptiles) soared through the air. The sea was inhabited by mollusks (soft-bodied animals without a backbone), corals, sea lilies, fish, and big marine reptiles.