The thickened skull of ____ has led to speculation that males clashed heads with one another in competition for females during breeding season.
Most Pachycephalosaurs lived during the Late Cretaceous in ____
North America and Asia
The Homalocephalidae were the largest pachycephalosaurs
Pachycephalosaurs were all bipedal
Which of the following pachycephalosaur characteristics is false?
Pachycephalosaurs first evolved during the _____.
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The name “Pachycephalosauria” means ____.
All known pachycephalsaurs are from the Northern Hemisphere.
Pachycephalosauridae have a flat skull roof.
Running, Stegoceras would have had its back almost perpendicular with the ground requiring the tail to act as a counterbalance.
The Homalocephalidae family is more diverse than the Pachycephalosauridae.
The Pachycephalosauria are divided into two families based upon their ____.
Skull roof characteristics
The Homalocephalidae were the largest pachycephalosaurs.
Pachycephalosaurs were all herbivores.
Unlike Stegoceras, Pachycephalosaurus has very prominent bony spikes projecting from the snout.
Homalocephale from Mongolia had a relatively flat skull roof.