Chapter 6: Primivitosaurus
( Primal lizard ). One of the many diverse species of tyrannosaurs on the island, and the descendants of the Albertosaurus, the fourth largest tyrannosaurus species, who's ancestors migrated to the island across various land bridges, during the brink of their time period. However while it is still number four in the tyrannosaur size scale, at 20-24 ft tall and 60-66 ft long this is one of the most deadly predators on the island. This also one of the many members of the Neo theropod group known as the Saurocrocomorphs, along with most of the other tyrannosaurus on the island. Oddly enough while this is species is a capable swimmer, it is actually the least amphibious member of the group, due to living in a mostly rocky Mountain area. It is halfway into the evolutionary process, but it did develop bone crushing crocodilians esque jaws and tough armor like scales to protect itself from larger predators and rivals. In addition it's most distinctive trait are the three large horns on its head, similar to the Ceratosuchus and Carnotaurs, and archived through convergent evolutions. These large horns are used for display, intimidation and physical confrontations, as these horns are almost as tough as Ceratopsian horns.