Hammer is a female Pachycephalosaurus Wyomingensis. She was one of the primary characters of season one and has a rather antagonistic rivalry with Bloodtooth, a female Tyrannosaurus Rex. After her absence in season two, Hammer returns for a brief three episodes of season three.
Dinosaur Island Edit
Season 1 Edit
A huge storm hits the South side of the island.
- In Dinosaur Island Revival, it is revealed that Hammer had a daughter by the name of Mallet.