- Fixed Bug - Upgrade Google Play Service SDK
Dinosaurs (Greek δεινόσαυρος, deinosauros) were the dominant vertebrate animals in the terrestrial ecosystem for over 160 million years, from the Old Triassic period (about 230 million years ago) to the end of the Cretaceous period (about 65 million years ago), when many of them extinct on the event of Cretaceous-Tertiary extinction. Ten thousands of species of living birds have now been classified as dinosaurs.