- "The rising water levels suit one group of hunters - the amphibious predator Proterogyrinus."
Proterogyrinus lived during the Carboniferous period and was one of the two top predators of its time. It often ate insects, other amphibians, and fish.
Proterogyrinus was a slender amphibian about two meters long. It had black with white stripes running down its spine. It had splayed out legs and five digits on each foot. It had small, needle-sharp teeth inside relatively large jaws. It had yellow eyes.
Like all amphibians, these creatures had continued to thrive since the Devonian era. And as will all amphibians, Proterogyrinus had thin skin that still restricted them to the waters edge, but these were powerful predators armed with a devastating pair of jaws, ready to ambush anything that wondered within reach.
As an amphibian, Proterogyrinus was quite similar to its Devonian ancestor Hynerpeton. It had thin skin so it had to say close to water as the oxygen from the water would help its respiratory system function properly. However, it was allowed to stay out of water for longer intervals than its ancestor. It also had a flat tail designed to make it a powerful swimmer.
Unlike Hynerpeton, Proterogyrinus was the top predator of its time and fed on the large arthropods that were around during the Carboniferous, such as the car-sized Arthropleura and the eagle-sized Meganeura. Proterogyrinus was also very aggressive, especially in groups. They would constantly screech at each other and would often fight.
In an event of a major forest fire (which were common during the Carboniferous), Proterogyrinus had the upper hand as it lived mostly in water. The water would guard it from the flames. Also, as most of the terrestrial creatures would panic, they would take advantage of the opportunity and would hunt them. They had the ability to surge out of water, so it could even hunt Meganeura as they scattered for safety.