Eotetrapodiformes

Eotetrapodiformes is an unranked clade of tetrapodomorphs including the four-limbed vertebrates ("tetrapods" in the traditional sense) and their closest finned relatives, two groups of stem tetrapods called tristichopterids and elpistostegalids.

Platycephalichthys is a genus of tristichopterid lobe-finned fish which lived during the Upper Devonian, Frasnian stage. thumb|left|Restoration