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Pachycephalosaurus would win, it could easily slam the Velociraptors to the ground.
Yes, pachycephalosaurus is a noun, a singular, common, concrete noun; a word for an extinct dinosaur, a word for a thing.
Probably not
caves and swamps
in a egg
Joseph Leidy in 1853.
There are both Pachycephalosaurs
Pachycephalosaurus
Kingdom: Animalia Phylum: Chordata Class: Sauropsida Order: Ornithischia Family: Pachycephalosauridae Genus: Pachycephalosaurus Species: P. Wyomingensis
True
TRUE
Yes, it is.