He correctly identified them as rings of cartilage from the animal’s trachea, but in his 1899 description of the Tylosaurus specimen Osborn – citing Williston’s hypothesis mosasaurs had a ...

The newborn Tylosaurus bones are so small that they fit on a person's hand. Here, you can see (from left to right) ... the only fossils of the animal they could find, a new study reports.

Re-analysis of Kansas fossils show they come from a newborn Tylosaurus, which were born without their tell-tale toothy snouts. ... Starkly lacking was the long, toothy snout that defines the animal.

Gemstone miners in Canada accidentally stumbled across a fossil of the ancient sea monster Tylosaurus which lived 70 million years ago. Miners were hunting for a rainbow-coloured, opal-like ...

The smallest Tylosaurus mosasaur fossil ever found has been revealed in a new study, ... Long Shot Science Leads to Revised Age for Land-Animal Ancestor. Birds Nested in Arctic Alongside Dinosaurs.

A–B, FHSM VP-14845, Tylosaurus sp. in A, dorsal and B, ventral views. C, TMM 40092-27, Tylosaurinae, in ventral view. Broken lines in A and B indicate reconstructed outlines of the element.

He correctly identified them as rings of cartilage from the animal's trachea, but in his 1899 description of the Tylosaurus specimen Osborn - citing Williston's hypothesis mosasaurs had a "nuchal ...

The smallest Tylosaurus mosasaur fossil ever found has been revealed in a new study in the Journal of Vertebrate Paleontology and surprisingly it lacks a trademark feature of the species.

Osborn correctly identified them as rings of cartilage from the animal’s trachea, but in his 1899 description of the Tylosaurus specimen Osborn – citing Williston’s hypothesis mosasaurs had ...

Osborn correctly identified them as rings of cartilage from the animal's trachea, but in his 1899 description of the Tylosaurus specimen Osborn - citing Williston's hypothesis mosasaurs had a ...