A dinosaur is any one of a varied group of large prehistoric reptiles belonging to the clade Dinosauria. The first dinosaur — the name means "terrible lizard" — appeared during the Triassic period. Although the precise timing of their origin is still unclear, dinosaurs are thought to have evolved between 243 million and 233 million years ago. Delight a dino-loving friend with one of our dinosaur yoga mats.
A dinosaur is any one of a varied group of large prehistoric reptiles belonging to the clade Dinosauria. The first dinosaur — the name means "terrible lizard" — appeared during the Triassic period. Although the precise timing of their origin is still unclear, dinosaurs are thought to have evolved between 243 million and 233 million years ago. Delight a dino-loving friend with one of our dinosaur yoga mats.