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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Lomasuchus ： ウィキペディア英語版 Lomasuchus ''Lomasuchus'' is an extinct genus of peirosaurid notosuchian known from the Late Cretaceous (Santonian stage) of Neuquén Province, western central Argentina. It contains a single species, ''Lomasuchus palpebrosus''.〔Gasparini, Z., Chiappe, L. M. and Fernandez, M. (1991). A new Senonian peirosaurid (Crocodylomorpha) from Argentina and a synopsis of the South American Cretaceous crocodilians. ''Journal of Vertebrate Paleontology'' 11:316-333.〕 It is known only from the holotype MOZ 4084 PV which was found in the Loma de la Lata locality of the Neuquén Province, Patagonia. It was originally reported as collected from sediments of the Rio Colorado Subgroup, Neuquén Group. Later, Hugo and Leanza (2001) noted that this specimen was actually collected from the underlying Portezuelo Formation of the Rio Neuquén Subgroup, Neuquén Group. More recent stratigraphic work on this area identified that horizon as belonging to the younger, Coniacian-age, Plottier Formation of the Rio Neuquén Subgroup. This horizon is currently considered to pertain to the Santonian-age Bajo de la Carpa Formation of the Rio Colorado Subgroup.〔 ''Lomasuchus'' had a deep, narrow snout characteristic of peirosaurids. The serrated teeth were compressed, although not to the extent seen in other related genera such as ''Peirosaurus''. Many similarities can be seen between its morphology and that of the related ''Uberabasuchus'', such as the narrow snout and a groove at the maxilla-premaxilla contact that accommodated for an enlarged fourth mandibular tooth. The two genera are distinguished from one another on the basis of several features, including the shape of the orbits.〔Carvalho, I. d. S., Ribeiro, L. C. B. and Avilla, L. d. S. (2004). ''Uberabasuchus terrificus sp. nov.'', a new Crocodylomorpha from the Bauru Basin (Upper Cretaceous), Brazil. ''Gondwana Research'' 7(4):975-1002.〕 ''Lomasuchus'' lends its name to a subfamily of peirosaurids called the Lomasuchinae. Lomasuchinae was constructed in 2004 and included ''Lomasuchus'' (the type genus), and a tribe called Mahajangasuchini, which included ''Mahajangasuchus'' and ''Uberabasuchus''. ''Mahajangasuchus'' is now placed outside Peirosauridae in a different family, Mahajangasuchidae.〔 ==References== 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「Lomasuchus」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.