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''Acheronodon'' is a genus of herbivorous arboreal mammal which belongs to the family ''Microcosmodontidae'' and which was endemic to North America during the Early Paleocene subepoch (66—56.8 mya) and in existence for approximately .〔(Paleobiology Database: ''Acheronodon'' basic info. )〕 It is a member of the extinct order ''Multituberculata'' and lies within the suborder ''Cimolodonta.'' The species ''Acheronodon garbani'' is known from fossils found in the Puercan (Paleocene)-age formations of Tullock Formation in Montana (USA) and possible specimens from the Porcupine Hills in Alberta, Canada. The holotype was found in Montana. == References == * Archibald (1982), "A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana." ''Univ. Calif. Publ. Geol. Sci.'' 122, p.1-286. * Kielan-Jaworowska Z & Hurum JH (2001), "Phylogeny and Systematics of multituberculate mammals." ''Paleontology'' 44, p.389-429. * Much of this information has been derived from (Eucosmodontidae, Microcosmodontidae and Taeniolabidoidea, an Internet directory ). 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「Acheronodon」の詳細全文を読む スポンサード リンク
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