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 ...

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 ...

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 ...