These formidable lizards are iconic examples of macroevolution, showcasing the emergence of entirely new animal groups.

Mosasaurs are extinct marine lizards, spectacular examples of which were first discovered in 1766 near Maastricht in the ...

Mosasaurs are extinct marine lizards, spectacular examples of which were first discovered in 1766 near Maastricht in the ...

Michael Polcyn’s research on mosasaurs, ancient marine reptiles, uncovers their evolutionary origins, dietary habits, and ...

A mosasaur may have laid this football-size egg 68 million years ago.

Dr. Spearing said other mosasaur fossils have been found in the Great Plains, but this was a first of its kind for northern Iowa, so he had to make sure his suspicions were correct. “I actually ...

KAINAN, Wakayama Prefecture--A mosasaur fossil found in the mountains in the prefecture almost two decades ago has been determined to be a new genus and species that lived more than 70 million ...

A trio of fossil finds through the years helped put Manitoba on the mosasaur map, and the milestone of those finds have all ...

Researchers have discovered a huge new mosasaur from Morocco, named Thalassotitan atrox, which filled the apex predator niche. With massive jaws and teeth like those of killer whales ...

Fossil hunter Alan Detrich, Overbrook, is pictured with a 17-foot Mosasaur, he discovered several years ago in Gove County, Kansas. Detrich, who has uncovered various dinosaur fossils says it took ...

Instead he found a black fossil embedded in the solid sandstone, which was found to be the backbone of a nearly perfectly preserved mosasaur. This fossil represents the most intact skeleton of a ...

These long-extinct, fearsome creatures are turning up in living rooms and corporate offices as wealthy collectors indulge a controversial hobby. A Kaatedocus siberi stands among an eclectic mix of ...