|1st Species||Proterogyrinus scheelei|
|2nd Species||Proterogyrinus pancheni|
|Time Range||331-323 mya|
|Location||United States of America, United Kingdom|
|Name Meaning||Early tadpole|
|Physical Dimensions||2.5 meters long|
Proterogyrinus had a build that reflected its relations and evolution. It was a lizard-like animal with 4 legs, a long, broad, fin-less tail, a broad body, and a long head with big jaws. Its body would have been covered in scaly skin.
Most amphibians were capable of both swimming in water and crawling onto land; Proterogyrinus would have complimented this ability, thanks to a few anatomical features. For aquatic movement, its broad tail would have provided efficient power for swimming in the water. For terrestrial movement, Proterogyrinus's limbs were designed for walking across the land, and its feet had an increased number of toe bones, allowing for more grace on land than any other amphibian; both of those featured allowed Proterogyrinus to quickly clamber onto land in order to escape aquatic predators like Rhizodus. Despite all of its abilities on land, the structure of its ears would have worked best in water, which suggests that the amphibian would have hunted in the water.
In popular cultureEdit
Proterogyrinus was featured in the 2nd episode of the 2005 documentary Walking with Monsters, where it battles an Arthropleura and kills it by flipping it onto a sharp stump. As well as this, it was shown as jumping out of the water to hunt aerial predators such as Meganeura, similar to modern alligators.