valvasain
Valvasain is a genus of extinct marine reptiles belonging to the family Pliosauridae, a group of short-necked plesiosaurs. These large predators roamed the oceans during the Late Jurassic period, approximately 160 to 150 million years ago. Fossils of Valvasain have been discovered in various locations, including Europe.
The genus Valvasain is characterized by specific anatomical features, particularly in its skull and dentition, which
The classification of Valvasain has been subject to scientific study and debate, with ongoing research refining