A mosasaur tooth discovered alongside a T. rex tooth and a freshwater crocodilian jaw in North Dakota raised new questions ...

The Hell Creek Mosasaur, reconstruction by Christopher DiPiazza. Please note that more images and a short video are available at this link: https://springernature-my ...

Giant reptiles, masters of the oceans more than 66 million years ago, swimming in rivers? A recent discovery in North America raises this surprising hypothesis and changes our perception of mosasaurs.

Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater rivers alongside dinosaurs and crocodiles. A massive tooth found in North ...

Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers. This is shown by new research based on analyses of a mosasaur tooth found in ...