Marine reptiles

Marine reptiles are reptiles which have become secondarily adapted for an aquatic or semi-aquatic life in a marine environment.

The earliest marine reptiles arose in the Permian period during the Paleozoic era. During the Mesozoic era, many groups of reptiles became adapted to life in the seas, including such familiar clades as the ichthyosaurs, plesiosaurs, placodonts, and mosasaurs.

After the first mass extinction at the end of the Cretaceous period, marine reptiles were less numerous. Extant marine reptiles include marine iguanas, sea snakes, sea turtles, and some species of crocodiles.

Some marine reptiles, such as ichthyosaurs and mosasaurs, rarely venture onto land and give birth in the water. Others, such as sea turtles and saltwater crocodiles, still return to shore to lay their eggs.

Euryapsids

• Plesiosaurs
• Ichthyosaurs
• placodonts

Diapsids

• mosasaurs
• saltwater crocodiles
• marine Iguanas

This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.

Video: Manado Marine Reptiles