yes, T-rex could only walk on two feet because it's front arms/legs were very tiny.
Yes, Pachycephalosaurus walked on two legs. They were bipedal.
Like all carnivorous dinosaurs T. rex was a biped.
A T-Rex is a bipedal. It walks on two legs.
I think its Pachycephalosaurus.
True
Yes, it is.
TRUE
Yes, pachycephalosaurus is a noun, a singular, common, concrete noun; a word for an extinct dinosaur, a word for a thing.
Irritator
velociraptor.
Hadrosaur.
Yes. Deinonychus was a biped.
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Iguanodon
There were several groups of dinosaurs that were bipedal. The theropods, which included all carnivorous dinosaurs, are the beast known. But some ornithopods and prosauropods were bipedal as well.