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Hunting Down an Ancient 'Buzzsaw Killer': The Helicoprion
Key Facts In This Video
Many helicoprion lived in the Phosphoria Sea, which covered what is now southeastern Idaho. 00:21
See a 3D-printed model of the helicoprion's jaws and tooth whorl: 01:18
Little wear has been found on fossilized helicoprion teeth, suggesting that they ate boneless prey such as squid. 01:50