Ancient shark-like fish had teeth like a circular saw blade

U.S. researchers say they've used CAT scans to make 3-D virtual reconstructions of an ancient shark-like fish's odd spiral-toothed jaw.

Digging A Hole By Shovel In A Clay Soil For Planting A Young Tree Stock Photo Alamy

Chondrichthyan - Cartilaginous Fish, Elasmobranchs, Holocephali

Whorl Sharks: Ancient Predators with Unique Circular Saw-like Jaws

Prehistoric Shark-like Chimera Re-Imagined - CORAL Magazine

the extinct shark Helicorpion who had a circular saw of teeth as its lower jaw : r/interestingasfuck

Helicoprion spp. - Carnivora

Buzzsaw Shark Plush – The Science Museum of Minnesota

Digging A Hole By Shovel In A Clay Soil For Planting A Young Tree Stock Photo Alamy

Helicoprion: The Buzz Saw Shark – Nocs Provisions

Paleozoic Pals Buzzsaw Shark Plush – Paleontological Research Institution

Ancient shark used its teeth like the blade of a power tool