Proterogyrinus was an anthracosaur, belonging to the class of amphibians. Proterygrinus was around 2.5 metres long, and was heavily built was powerful jaws. It was more than a match for the large arthropods of the swamps.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.