Triassic world

The Triassic period was the beginning of the Mesozoic era, which lasted until the end of the Cretaceous period. The first dinosaurs appeared in the Triassic period. These dinosaurs were agile carnivores that evolved rapidly. Some became herbivores. Small mammals also appeared at this time, as did the flying reptiles, called pterosaurs.

Dinosaur Anatomy

Life in the air

The pterosaurs were cousins of the dinosaurs, and were the only reptiles ever to fly. They flew above the conifer forests catching insects. They may also have skimmed the water of the rivers and seas for fish.

This pterosaur, Preondactylus, had a wingspan of about 5 ft (1.5 m).

This pterosaur, Preondactylus, had a wingspan of about 5 ft (1.5 m).

Dinosaur life The number of herbivores, such as Vlateosaurus, increased during the Triassic period. They were stalked by carnivorous dinosaurs, such as Herrerasaurus. Other reptiles lived alongside the dinosaurs, such as the piglike dicynodonts.

Was this article helpful?

0 0

Post a comment