Name meaning "Scorpion demon" this evolved from Krokodeilos Petrinioura. This sharp-clawed behemoth has strong jaws, one of the strongest in c-17. Like its relative, the thing on its tail is NOT poisonous. Also the bump on its head is no longer, well, a bump. It is a horn that could evolved into a line of spikes on its body, and a lineage of spiked creatures.
credit to @allowarrior and @pachyrhinosaurus09