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Huehuecanauhtlus
''Huehuecanauhtlus'' is an extinct genus of hadrosauroid dinosaur known from the Late Cretaceous (Santonian stage) of Michoacán, western Mexico. It contains a single species, ''Huehuecanauhtlus tiquichensis''.
==Discovery==
''Huehuecanauhtlus'' is known only from two individuals. The holotype IGM 6253 represented by fragmentary skull (partial left maxilla and dentary fragment) and postcranial skeleton including four cervical vertebrae, nine dorsal vertebrae, four dorsal neural spines, one dorsal diapophysis, five right dorsal ribs, seven left dorsal ribs, seven sacral neural spines, seven sacral diapophyses, one caudal diapophysis, three caudal vertebrae, two caudal neural spine, eight fragmentary ossified tendons, left and right partial ilium, and left and right partial pubis. The smaller paratype, IGM 6254, is represented by fragment of left dentary, two teeth, and one cervical prezygapophysis.〔
Both specimens were collected at the Barranca Los Bonetes locality in Tuzantla, Michoacán. The holotype came from the sixth fossiliferous spot, whereas the paratype came from the third spot, of an unnamed formation, dating to the Santonian stage of the Late Cretaceous period, about 85.8-83.5 million years ago.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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