|
''Megalodon'' is an extinct genus of bivalve molluscs that reportedly lived from the Devonian to the Jurassic Period.〔 (【引用サイトリンク】 work = The Paleobiology Database )〕 It is not clear, however, that all the fossils assigned to ''Megalodon'' from that span of time really belong in the same genus.〔 〕 Jurassic relatives of ''Megalodon'' such as ''Pachyrisma grande'' were closely related to the rudists.〔 〕 ''Megalodon'' is the only genus in the family Megalodontidae. ==Nomenclature== A family of insects has also been called "Megalodontidae", containing the sawfly genus ''Megalodontes''. In order to remove the homonymy, that family has been renamed Megalodontesidae. 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「Megalodon (genus)」の詳細全文を読む スポンサード リンク
|