In 2021, scientists identified a new mosasaur species upon the discovery of a Cretaceous-period jaw with unusual teeth in a Moroccan mine. There’s only one problem—the remains may have been ...

Nick Longrich at the University of Bath, UK, and his colleagues analysed the find and classified it as a new species of mosasaur named Xenodens calminechariin 2021. Read more Largest ever animal ...

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 ...