It is very difficult to get a complete skull of a placoderm fish by the dispersion of its plates when the animal dies.
This skull has restoration in its teeth, eyes and the lower plate, the rest is original.
Dunkleosteus (German: Dunkle «dark» + ancient Greek: osteos «bone») is a genus of placoderm fish that existed at the end of the Devonian period, from approximately 380 to 360 million years ago, in the Frasnian and Famenian.
Dunkleosteus was characterized by an armored head equipped with jaws with unusual dental blades. Dunkleosteus is considered one of the fiercest and deadliest marine predators that ever existed. With up to six meters long and 1 ton of weight, this hunter was in the last link of the food chain of his environment, and probably preyed on all kinds of fauna.