Dunkleosteus is often presented as one of the most formidable predators of the Devonian seas, yet much of its biology remains ...

WAKEMAN, Ohio – Along a stretch of the Vermilion River, in the shadow of the Ohio Turnpike, Caitlin Colleary of the Cleveland Museum of Natural History expects to find fossil evidence of the fierce, ...

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 ...

CLEVELAND, Ohio — Deep in the basement of the Cleveland Museum of Natural History, they're telling fish stories. "It was this big!" exclaims Dr. Caitlin Colleary, with arms outstretched. The ...

You probably know that we have a state bird and a state flower and a state tree. You might know that we also have a state invertebrate fossil. No, it is not THE trilobite — there is no such thing.

The promise of fossils is just one of many features to Wolf Run Preserve, about 10 miles west of Oberlin. It’s named for a tributary of the Vermilion and one of the dozens of natural areas across ...

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 ...

A big fish story? Maybe so: The greatest sea monster of the Devonian Period (Dunkleosteus terrelli) may be getting downsized. A new article contents that the famous sea monster of the Age of Fishes ...

(WKBN) — Did you know Ohio has an official state fossil fish? The Ohio Department of Natural Resources goes in-depth on this extinct predator that could’ve once swam where Ohioans walk today.

About 1867, Jay Terrell was walking along the Lake Erie shore in Sheffield Lake when he noticed what appeared to be fossils in the shale cliffs above him that lined the lakeshore. They proved to be ...