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 ...

Around 360 million years ago, a ferocious sea monster tore through oceans with bone blades in place of teeth. This sharp weaponry wasn't the only thing that made Dunkleosteus terrelli a force to be ...

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 ...