The fossil, kept at the Los Angeles County Natural History Museum, shows a tooth from a large Cretoxyrhina mantelli shark lodged between the neck vertebrae of a Pteranodon, a flying reptile that ...

The largest predator in its ecosystem was a shark called Cretoxyrhina, measuring 20 feet long. The fish group that includes sharks appeared roughly 380 million years ago, long before the dinosaurs.

Dr. Scott explains the differences between prehistoric sharks and sharks today. Dr. Scott explains the differences between prehistoric sharks and sharks today. Dinosaur Train is available to ...

The shark tooth, according to the study authors, belonged to the species Cretoxyrhina mantelli, a large and fearsome predator that stalked the Late Cretaceous seas.

An illustration of an ancient shark called Cretoxyrhina attacking a pterosaur called Pteranodon. Artwork by Mark P. Witton/Hone et. al. 2018/CC BY 4.0 Get the Popular Science daily newsletter💡 ...

The shark tooth belonged to a species called Cretoxyrhina mantelli, which is now extinct. Sharks of this species could have grown as long as 23 feet ...

The most famous of these mackerel shark was Cretoxyrhina, a formidable predator in the Late Cretaceous period that lived about 107 to 73 million years ago. Some remnants of the shark fossil found ...

Some sharks lived on or near the sea floor, while others actively hunted throughout the prehistoric seas. The largest sharks from the area at the time belonged to the genus Cretoxyrhina.

The largest predator in its ecosystem was a shark called Cretoxyrhina, measuring 20 feet long (6 meters). The fish group that includes sharks appeared roughly 380 million years ago, long before ...

It lived about 200 million years before Cretoxyrhina mantelli, a supershark of the Cretaceous period. Courtesy of J. Maisey, adapted by E. Otwell easy-to-preserve bones.