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The Rhipidistia, also known as dipnotetrapodomorphs (formally Dipnotetrapodomorpha) are a clade of lobe-finned fishes which include the Tetrapods and lungfishes. Rhipidistia formerly referred to a subgroup of Sarcopterygii consisting of the Porolepiformes and Osteolepiformes, a definition that is now obsolete.〔(【引用サイトリンク】url=http://www.britannica.com/EBchecked/topic/501438/Rhipidistia )〕 However as cladistic understanding of the vertebrates has improved over the last few decades a monophyletic Rhipidistia is now understood to include the whole of Tetrapoda and of the extant lungfishes. ==Relationships== The cladogram presented below is based on studies compiled by Philippe Janvier and others for the ''Tree of Life Web Project'',〔Janvier, Philippe. 1997. Vertebrata. Animals with backbones. Version 01 January 1997 (under construction). http://tolweb.org/Vertebrata/14829/1997.01.01 in The Tree of Life Web Project, http://tolweb.org/〕 Mikko's Phylogeny Archive and Swartz 2012. }} }} }} }} }} }} }} }} }} }} }} }} }} 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「rhipidistia」の詳細全文を読む スポンサード リンク
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