This fish was anything but picky with its food. It ate fish, sharks and even its own kind. And it seems that Dunkleosteus suffered from indigestion as a result: its fossils are often associated with regurgitated, semi-digested remains of fish.Click to see full answer. Similarly, you may ask, how did the dunkleosteus go extinct?The Devonian extinction saw the oceans choke to death. It was the age of fish. Throughout the oceans species began dying out, and by the time it was all over between 79% and 87% of all species had gone extinct – including Dunkleosteus. It was one of the worst mass extinctions in Earth’s history.Also Know, was the dunkleosteus real? Dunkleosteus. Dunkleosteus is an extinct genus of arthrodire placoderm fish that existed during the Late Devonian period, about 358–382 million years ago. Few other placoderms rivaled Dunkleosteus in size. Besides, where were dunkleosteus fossils found? Fossils of Dunkleosteus are found in late Devonian rock units which are Frasnian and Famennian in age (382-358 Myo). Distribution: North America, Europe, and Morrocco: Dunkleosteus specimens are found nearly globally, however the world famous specimens come from the Cleveland shale in Northern Ohio.Is dunkleosteus bigger than Megalodon?Dunkleosteus was a lot smaller than megalodon, and it’s largest species, D. terrelli, was only about 20 feet in length, possibly reaching 30 feet. However, even without teeth, (dunkleosteus had bony plates that acted as teeth), dunkleosteus had an incredibly strong bite force for its size.