Megatherium

Megatherium, also known as the Giant Ground Sloth, is an extinct species of ground sloth that lived in South America during the Pliocene and Pleistocene. Reaching sizes comparable to an elephant, Megatherium was one of the largest of its kind, although it was herbivorous like the modern-day tree sloths it was closely related to. Megatherium shared its grassland habitat with the saber-toothed cat Smilodon, which its large size, powerful claws and thick bony hide would have protected it from.

Megatherium is one of the first animals to be recognised as extinct.

Jurassic World: The Game
Megatherium makes an appearance as a creatable Cenozoic creature. It is classed as a Cave creature and was added on April 19th.