Proterogyrinus is fully capable of walking on land, but due to its short limbs and length, it is more agile underwater.

Proterogyrinus is a reptilomorph. It is likely this group is a common ancestor of many modern day reptiles!

Proterogyrinus can grow up to 2.5 meters in length. While small compared to some prehistoric creatures, it was likely a top predator of its time!

Proterogyrinus fossils have been found in the UK, and the United States. They date to about 331-323 million years ago!