Mosasaurs are marine reptiles akin to lizards and snakes rather than dinosaurs. They are believed to have appeared about 98 million years ago and to have swum by moving their tail fins from side ...

“Mosasaurs seem to have committed to marine life multiple times,” Zietlow says, with different lineages independently evolving larger size, flipper-like limbs and broad tails. Such a scenario ...

Jurassic World Rebirth is going to feature many dinosaurs, including iconic favorites like the Velociraptors along with new ...

Morocco is uniquely rich in mosasaur fossils, says Henry Sharpe at the University of Alberta in Canada. “Miners working in the phosphate mines come across mosasaurs all the time.” The problem ...

This 72-million-year-old mosasaur fossil once believed to be a new species, was recently determined in a new study to potentially be a forgery. Scientists are asking for more high-tech CT scans to ...

A flattened tail may have helped the bird change depth ... Dinosaurs were terrestrial threats, and the aquatic mosasaur giant Tylosaurus was known to consider Hesperornis a tasty meal.