How much does a plesiosaur wheigh?

Answer 1

Plesiosaurs, a group of marine reptiles that lived during the Mesozoic Era, varied significantly in size and weight. On average, they typically weighed between 1,000 to 2,000 pounds (450 to 900 kilograms), but some larger species could weigh as much as 15,000 pounds (6,800 kilograms) or more. Their weight depended on factors such as species, size, and age.