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Genasauria
Genasauria is a clade of extint beaked, herbivorous dinosaurs. The group was first named by paleontologist Paul Sereno in 1986, and is typically split into Thyreophora, a group of armored dinosaurs, and Neornithischia, which included the horned and duck-billed dinosaurs. Genasauria, as defined by Sereno, consists of ''Ankylosaurus magniventris'', ''Pachycephalosaurus wyomingensis'', ''Parasaurolophus walkeri'', ''Stegosaurus stenops'', ''Triceratops horridus'', their most recent common ancestor, and all descendants. The name Genasauria was used almost exclusively by Sereno for several years, but has gained greater usage in recent years. ==Sources==
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抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Genasauria」の詳細全文を読む
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