(Phys.org)—Using CAT scans and making 3-D virtual reconstructions of the jaws of the ancient fish Helicoprion, Idaho State University researchers have solved some of the mysteries surrounding large ...

POCATELLO - The Idaho Museum of Natural History has added to its already impressive collection of prehistoric shark fossils. The newest fossil is a spiral of teeth from a Helicoprion - a prehistoric ...

Reconstructing the anatomy of prehistoric sharks isn’t easy. With few exceptions – an exquisitely-preserved body fossil here, some calcified bits of skeleton there – teeth make up the majority of the ...

Get unlimited access to ad-free articles and exclusive content. Discovery The world’s only animal, past or present, with a complete 360-degree spiral of teeth was Helicoprion, which sliced into prey ...

POCATELLO – The Idaho State University Idaho Museum of Natural History is teaming with Alaskan “fin artist” Ray Troll to form a “Helicoprion shark posse” to collect more information about this ...

On May 3, a Monsanto worker at the Blackfoot bridge mine stumbled upon a helicoprion shark fossil. It's an exciting find in eastern Idaho, but far from rare. "He noticed it in his bucket as he pulled ...

In 1986, Richard Glenn, a 23-year-old geology student from Barrow, spotted an odd shape in a foot-long chunk of rock near Atigun Gorge. It consisted of a series of points arranged in a spiral, like ...