|Species :||Tyrannosaurus rex|
|Time period :||Late Cretaceous period 65|
|Primary diet :||Carnivore|
|In the series|
|Fatalities caused :||0|
|Appearances :||End Game|
The juvenile T. rex, which is called Junior, was the only egg that his father Stumpy and mother Tinkerbelle had after mammals ate the rest.
As he gets older he plays with an Ankylosaurus and receives an injury.He then chases two Troodons into a cave, and than the asteroid hits, but he survived due to being in the cave, but when he comes out, he finds his parents dead and he also finds a small mammal, but upon chasing it he ultimately falls to his death. His body was later found by a female Troodon who proceeds to eat and rest beside his carcass. Later the same Troodon decides to make Junior's mouth it's new nest and puts it's egg that she had carried over inside his mouth and cares for it until the very end.