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Dysganus
''Dysganus'' is the name given to a dubious genus of dinosaur from the Late Cretaceous. It was a ceratopsian. Its fossils have been found in Montana. ==History== The species assigned to this dubious genus include ''Dysganus encaustus'', ''D. bicarinatus'', and ''D. peiganus'', but are all tooth taxa, based solely on teeth. A fourth species, ''Dysganus haydenianus'', is also known, based on ceratopsian teeth. All species were described by Edward Drinker Cope in 1876. In 1907, Hatcher redescribed the teeth of ''Dysganus'', and found that the genus was a ''nomen dubium''. The teeth of ''D. peiganus'' were thought to be from a stegosaurian by Lull and Wright in 1942. The types of each species consist of one to eight teeth, all being detached.
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「Dysganus」の詳細全文を読む
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