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''Crocodylus'' is one of three genera from the subfamily Crocodylinae of the family Crocodylidae. Established species include five extinct species:〔 * † ''Crocodylus anthropophagus'' is an extinct crocodile from Plio-Pleistocene of Tanzania. * † ''Crocodylus bugtiensis'' is an extinct crocodile from Pakistan * † ''Crocodylus checchiai'' is an extinct crocodile from Late Miocene of Kenya. * † ''Crocodylus palaeindicus'' is an extinct crocodile the Miocene to the Pleistocene of southern Asia. * † ''Crocodylus thorbjarnarsoni'' is an extinct crocodile from Plio-Pleistocene of Kenya. The 13 living species are: * American crocodile, ''Crocodylus acutus '' * Slender-snouted crocodile, ''Crocodylus cataphractus'' - studies in DNA and morphology suggest this species may be more basal than ''Crocodylus'' and therefore belongs in its own genus, ''Mecistops''.〔McAliley, Willis, Ray, White, Brochu & Densmore (2006). ''Are crocodiles really monophyletic?—Evidence for subdivisions from sequence and morphological data.'' Molecular Phylogenetics and Evolution 39: 16-32.〕〔〔 * Orinoco crocodile, ''Crocodylus intermedius '' * Freshwater crocodile, ''Crocodylus johnsoni'' * Philippine crocodile, ''Crocodylus mindorensis'' * Morelet's crocodile or Mexican crocodile, ''Crocodylus moreletii '' * Nile crocodile or African crocodile, ''Crocodylus niloticus '' (the subspecies found in Madagascar is sometimes called the black crocodile) * New Guinea crocodile, ''Crocodylus novaeguineae'' * Mugger crocodile, marsh crocodile, or Indian crocodile, ''Crocodylus palustris'' * Saltwater crocodile or estuarine crocodile, ''Crocodylus porosus '' * Cuban crocodile, ''Crocodylus rhombifer '' * Siamese crocodile, ''Crocodylus siamensis'' * West African crocodile or desert crocodile, ''Crocodylus suchus'' * ''Crocodylus raninus'' (Considered as a synonym of ''Crocodylus porosus'', its status remains unclear.〔http://reptile-database.reptarium.cz/species?genus=Crocodylus&species=raninus〕) ==Phylogeny== The cladogram below follows the topology from a 2011 analysis of mitochondrial DNA sequences by Robert W. Meredith, Evon R. Hekkala, George Amato and John Gatesy. |2= }} |label2= Africa-New World |2= }} }} }} }} }} The cladogram below follows the topology from a 2012 analysis of morphological traits by Christopher A. Brochu and Glenn W. Storrs. Many extinct species of ''Crocodylus'' might represent different genera. ''C. suchus'' was not included, because its morphological codings were identical to these of ''C. niloticus''. However, the authors suggested that it could be explained by their specimen sampling, and considered the two species to be distinct. |2= }} }} }} }} |label2= Crocodylinae |2= |3= |label2= Osteolaeminae |2= }} |3= }} }} |6= }} }} }} }} }} }} }} }} }} 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「Crocodylus」の詳細全文を読む スポンサード リンク
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