This ancient, armored sea monster snatched its marine prey with a formidable bite more than 300 million years ago. Belonging to the fierce Dunkleosteus genus, it was among the planet’s first apex ...

Cleveland’s iconic prehistoric sea monster—the 14-foot-long armored fish Dunkleosteus terrelli—just got a lot stranger. This marine apex predator lived some 360 million years ago, had razor-sharp bone ...

Dunkleosteus is often presented as one of the most formidable predators of the Devonian seas, yet much of its biology remains uncertain. Fossil evidence consists mainly of armored head plates, leaving ...