Mosasaur evolution represents one of the most striking examples of evolutionary innovation among marine reptiles. Emerging in the mid-Cretaceous, these marine squamates rapidly diversified to occupy a ...

A new genus and species of plesiopedal mosasauroid, Portunatasaurus krambergeri, from the Cenomanian– Turonian (Late Cretaceous) of Croatia is described. An articulated skeleton, representing an ...

An enormous sea snake from Norse legend that was fathered by the trickster god Loki and grew big enough to circle the globe is now the namesake for a different type of “monster” — a newly discovered ...

(CNN) — An enormous sea snake from Norse legend that was fathered by the trickster god Loki and grew big enough to circle the globe is now the namesake for a different type of “monster” — a newly ...

Sixty six million years ago, sea monsters really existed. They were mosasaurs, huge marine lizards that lived at the same time as the last dinosaurs. Growing up to 12 metres long, mosasaurs looked ...

A new discovery has revealed a previously unknown species of mosasaur, Jormungander walhallaensi, shedding new light on the oceans of the Late Cretaceous period. Named after the legendary Norse sea ...