Orthacanthus (SciiFii)

The Wel's shark (Orthacanthus welsi) is a species of freshwater shark from a family of sharks known as xenacanths, which originally lived during the Permian and what is now Europe and North America as an extinct species of Orthacanthus and was once extinct, but has since been brought back from extinction by SciiFii and now lives in Paleozoic Park located at Downey, California. The Wel's shark has a long spine growing from the back of its skull and a very long dorsal fin, which are used for defense against predators, and runs all along its back giving it an eel-like appearance. The Wel's shark is the apex predator of freshwater swamps and bayous in its own exhibit, growing on average of not to about 10 feet (3 meters) in length and the shark possesses a peculiar set of double-fanged teeth.