Ceratopsians and Pachycephalosaurs Ceratopsians and Pachycephalosaurs Around 144 million years ago, began the emergence of the ornithischian dinosaur dinosaur dinosaurs during the cretaceous period and diversified into North America and Asia. Ornithischians were dissolve as having a hip structure similar to that of birds, although they ar not the descendants of birds. Marginocephalians, meaning "fringed heads" are a group of Ornithischians that have a distinctive skull structure, consisting of a tippy shelf or bony frill on the lavatory of the skull, a unique palate, and a short hip structure.
These herbivores affect two major groups: the Ceratopsian s and the Pachcephalosaurians. These plant-eaters include the Ceratopsians, horned dinosaurs such as the Triceratops, Styrachosaurus, Pentaceratops, and the Protoceratops. Pachycephalosaurians, thick-skulled dinosaurs like such as the Stegoceras and the Pachycephalosaurus. (1) Ceratopsians and Pachycephalosaurs are tightlipped r...If you want to get a full essay, order it on our website:
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