Among the largest amphibians ever discovered, Prionosuchus plummeri comes in at over seven meters in length and weighing well over a metric tonne. Due to its small limbs and oddly fish-like internal anatomy Prionosuchus is entirely incapable of going onto land.
This mod was commissioned by Joseba for Megaquarium and can be downloaded here:
https://steamcommunity.com/sharedfiles/filedetails/?id=2515712834