Phytosaur, heavily armoured semiaquatic reptiles found as fossils from the Late Triassic Period (about 229 million to 200 million years ago).

What was the largest Phytosaur?

Redondasaurus gregorii was the largest known phytosaur of the Triassic and probably even one of the largest carnivores in the Triassic. This monster grew up to anywhere between 9-12 metres in length and could grow to this size because there were large dicynodonts around to prey on.

When did the Phytosaur go extinct?

The phytosaurs are long gone. They did not survive the mass extinction that dramatically altered life on Earth at the end of the Triassic, about 201 million years ago.