Juvenile Tyrannosaur

The juvinile tyrannosaur was only seen in the novel. It was a 3rd grown and was the same color as the adult. It is seen by Grant in the chopper as they leave Nublar when a bomb explodes possibly killing it. But, it is also possibble that it was on Nublar during the film because Nedry is seen stealing tyrannosaur DNA meaing the more than tyrannosaur could've been on the island at the time.