(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 ...

A study in the Journal of Morphology shows how the bizarre prehistoric ratfish called a Helicoprion ate with its unique set of choppers. A Helicoprion was a prehistoric ratfish that featured perhaps ...

Of all the vexing fossil mysteries that have confounded paleontologists, few have been as persistent as that of Helicoprion – the name given to petrified whorls of elongate teeth that look like 270 ...

Helicoprion, often called the “buzz saw shark,” possessed one of the most unusual feeding adaptations ever seen in vertebrates—a spiral of continuously replacing teeth embedded in its lower jaw.

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 ...

After watching the movie Jaws, I had a deep sense of dread about going into the water—even if the water was in a swimming pool. A similar hydrophobia came over me while reading the riveting new book ...