Peronedon is an extinct genus of nectrideans in the family Diplocaulidae.

It is distinguished from other diplocaulids by the absence of a postorbital.

[1] Below is a cladogram modified from Germain (2010):[1] Ptyonius Sauropleura Urocordylus Scincosaurus Keraterpeton Diceratosaurus Batrachiderpeton Peronedon Diplocaulus magnicornis Diploceraspis Diplocaulus minimus

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