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 ...

For generations, Dunkleosteus terrelli, also known as Ohio’s state fossil fish, has been a familiar figure for those in the Cleveland area, regarded as one of prehistory’s great sea monsters. This ...

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—About 360 million years ago, in the shallow subtropical waters above what is now the city of Cleveland, an armor-plated fish many believed to be up to 30 feet long ruled the seas. The ...