What is Sphenacodontoidea?
{{Automatic taxobox | name = Sphenacodontoids | fossil_range = [[Late Carboniferous]]-Recent, {{Fossil range|300|0}} | image = NHM Sammlung - 4.jpg | image_caption = Fossilized skull of two sphenacodontoids : ''[[Clelandina]]'' ([[Therapsida]], [[Gorgonopsidae]]) and a ''[[Dimetrodon]]'' ([[Sphenacodontidae]]). | display_parents = 3 | taxon = Sphenacodontoidea | subdivision_ranks = Clades | subdivision = * {{extinct}}''[[Shashajaia]]'' * {{extinct}}'''[[Sphenacodontidae]]''' *'''[[Therapsida]]''' }} '''Sphenacodontoidea''' is Superfamily of the [[Pelycosaur|Pelycosaurs]]. Which Includes [[Sphenacodontid|Sphenacodontids]] and [[Edaphosaurid|Edaphosaurids]]. [[Category:Synapsids]] {{biology-stub}}