Temporal range: Guadalupian
|An artist's illustration of Prionosuchus plummeri|
L. I. Price, 1948
| Prionosuchus plummeri|
Prionosuchus is a large carnivorous Temnospondyl amphibian from middle Permian Brazil. It is currently known as the largest amphibian that ever lived. It is possible that Prionosuchus had external gills like an Axolotl, but it is currently unknown if it truly did. Prionosuchus grew from 8-10 metres in length and weighed over 2 tons. This giant carnivore would have preyed on various fish and land vertebrates that were unfortunate enough to drink from the water Prionosuchus was waiting in with open jaws and over 60 razor sharp teeth. Prionosuchus would have laid its eggs in water like modern day amphibians but would have behaved very much like a modern day indian gharial (Gavialis gangeticus) but much, much bigger and slightly more aggressive. Due to its small weak limbs, it would have spent much of its time in water waiting for its food to come take a drink. Due to its large size, it would have been able to take nearly anything that came near its lake.
It would have acted much like gharials today by sitting at the bottom of its lake and waiting with jaws open for a fish to swim by unaware of the monsters presence then it would have closed its jaws with tremendous speed since its slender, elongated rostrum would have little to no water resistance, trapping the fish then eating it at its leisure.
In the Media
Prionosuchus is featured in Jurassic World: The Game as a Legendary amphibian.