Add Yahoo as a preferred source to see more of our stories on Google. The holotype for the newly described Tylosaurus rex is a giant specimen displayed at the Perot Museum of Nature and Science in ...

image: Paleontologists from Hokkaido University in Japan, in cooperation with paleontologists from the Perot Museum of Nature and Science in Dallas, Texas, have discovered the first-confirmed ...

Larger Marine Predator Than Tyrannosaurus Rex Identified Fossil reanalysis confirms Tylosaurus rex as distinct species, outsize apex predator of ancient seas ...

Add Yahoo as a preferred source to see more of our stories on Google. T. rex reconstruction. A reconstruction of Tylosaurus rex in the Cretaceous-era Western Interior Seaway of North America. (CREDIT: ...

Paleontologists have long hailed Tyrannosaurus rex as king of the dinosaurs. Now, the name "T. rex" also belongs to a newly described extinct carnivore — a massive marine reptile with the scientific ...

The Texas fossils were noticeably different from similar specimens found in Kansas. They were larger, had serrated teeth and appeared to come from a younger period in time, prompting Zietlow and SMU ...