About 360 million years ago, a huge armored fish patrolled a shallow sea that once covered what is now Cleveland. This animal, known as Dunkleosteus terrelli, has long held a place among the most ...

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, Ohio - An ancient sea creature well known to Clevelanders was far more unusual than previously thought, according to new research by Case Western Reserve University and others. Dunkleosteus ...

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 ...