The Nothosaurus
is a minor villain in the film The Son of Kong. This creature was much larger than in real life.

The Nothosaurus arrives in the cave and tries to eat Hilda and Carl, but Kiko battles the reptile and it tries to constrict him, but Kiko was able to kill it. Kiko tells Hilda and Carl that its dead, before the Nothosaurus bit him and he punches its face.