Pachycephalosaurus CollectA 88629
CollectA 88629 - Pachycephalosaurus
10 x 5.7 cm
Name: Pachycephalosaurus (thick headed lizard).
Named By: Barnum Brown & Erich Maren Schlaikjer - 1943.
Synonyms: Tylosteus, Troodon wyomingensis. Possibly also Dracorex and Stygimoloch if these two genera do indeed represent juvenile forms.
Classification: Chordata, Reptilia, Dinosauria, Ornithischia, Pachycephalosauridae, Pachycephalosaurinae, Pachycephalosaurini.
Species: P. wyomingensis (type).
Diet: Herbivore/Omnivore?
Size: Uncertain due to lack of remains, but comparison to more complete genera has yielded estimates of around 4.5 meters long.
Known locations: USA.
Time period: Maastrichtian of the Cretaceous.
