Mastodon saurus

…Margin was easily the Mastodonsaurus, a middle Triassic member from Europe that was an apex predator in both freshwater and even potentially marine ecosystems, thanks to its huge jaws, a powerful tail, and not to mention giant size, with this thing being a true behemoth, as it was one of the largest amphibians ever, and breaking the Prionnoseuchus' previous…

…Some temnospondyl lineages produced animals even larger than areops in the Triassic period Mastodon saurus, for instance, reaching lengths approaching six metres, which is large enough that you would not describe it as modest even by the standards of an era that included the early dinosaurs.…