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nectridea
Nectridea is the name of an extinct order of lepospondyl amphibians from the Carboniferous and Permian periods, including animals such as ''Diplocaulus''. In appearance, they would have resembled modern newts or aquatic salamanders. They had long, flattened tails to aid in swimming, and well-developed hind limbs, with a full set of five toes each. The fore limbs were somewhat reduced, however, and like modern amphibians, typically had only four toes each.
==Taxonomy==
*Order Nectridea
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*''Arizonerpeton''
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*Family Scincosauridae
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*''Sauravus''
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*''Scincosaurus''
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*Family Diplocaulidae
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*''Batrachiderpeton''
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*''Keraterpeton''
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*''Diceratosaurus''
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*''Diploceraspis''
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*''Diplocaulus''
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*Family Urocordylidae
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*''Urocordylus''
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*''Ctenerpeton''
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*''Ptyonius''
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*''Sauropleura''
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*''Lepterpeton''
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*''Montcellia''
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*''Crossotelos'
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「nectridea」の詳細全文を読む
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