What is Dimetrodon?
{{italictitle}} {{Automatic taxobox | fossil_range = [[Cisuralian]] to [[Guadalupian]] ([[Asselian]] to [[Roadian]]), {{fossil range|295|270}} | image = Dimetrodon incisivum 01.jpg | image_upright = 1.15 | image_caption = Skeleton of ''D. limbatus'', [[Staatliches Museum für Naturkunde Karlsruhe]] | taxon = Dimetrodon | authority = [[Edward Drinker Cope|Cope]], [[1878 in paleontology|1878]] | type_species = {{extinct}}'''''Dimetrodon limbatus''''' | type_species_authority = Cope, 1877 | subdivision_ranks = Species | subdivision = See [[List of Dimetrodon species|below]] | synonyms = {{collapsible list|bullets = true |title=<small>Genus synonymy</small> |''[[Dimetrodon borealis|Bathygnathus]]''<br /><small>Leidy, 1854</small> |''Embolophorus''<br /><small>Cope, 1878</small> |''Theropleura''<br /><small>Cope, 1880</small> |''Bathyglyptus''<br /><small>Case, 1911</small> |''Eosyodon''<br /><small>Olson, 1962</small> }} {{collapsible list|bullets = true |title=<small>Species synonymy</small> |''[[Dimetrodon borealis|Bathygnathus borealis]]''<br /><small>Leidy, 1854</small> |''[[Clepsydrops]] limbatus''<br /><small>Cope, 1877</small> |''Clepsydrops gigas''<br /><small>Cope, 1878</small> |''Clepsydrops natalis''<br /><small>Cope, 1878</small> |''Dimetrodon gigas''<br /><small>Cope, 1878</small> |''Dimetrodon incisivus''<br /><small>Cope, 1878</small> |''Dimetrodon rectiformis''<br /><small>Cope, 1878</small> |''Embolophorus dollovianus''<br /><small>Cope, 1878</small> |''Dimetrodon semiradicatus''<br /><small>Cope, 1881</small> |''Clepsydrops macrospondylus''<br /><small>Cope 1884</small> |''Dimetrodon platycentrus''<br /><small>Case, 1907</small> |''Theropleura grandis''<br /><small>Case, 1907</small> |''Bathyglyptus theodori''<br /><small>Case, 1911</small> |''Dimetrodon maximus''<br /><small>Romer, 1936</small> |''Eosyodon hudsoni''<br /><small>Olson, 1962</small> }} }} [[File:Dimetrodon pair.jpg|thumb|right|250px|Another species, showing the skull openings typical of a synapsid]] '''''Dimetrodon''''' was a [[gen