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- Sphenacodon abstract "Sphenacodon (meaning \"wedge point tooth\") is an extinct genus of synapsid that lived from about 300 to about 280 million years ago (Ma) during the Late Carboniferous and Early Permian periods. Like the closely related Dimetrodon, Sphenacodon was a carnivorous member of the Eupelycosauria family Sphenacodontidae. However, Sphenacodon had a low crest along its back, formed from blade-like bones on its vertebrae (neural spines) instead of the tall dorsal sail found in Dimetrodon. Fossils of Sphenacodon are known from New Mexico and the Utah-Arizona border region in North America.Researchers currently recognize two species: Sphenacodon ferox (the type species) and Sphenacodon ferocior. Sphenacodon ferocior can be up to 40% larger in overall size (at about 3 m (10 ft) long) compared to Sphenacodon ferox (at about 2 m (6 ft long)). In addition, the dorsal spines in Sphenacodon ferocior are proportionately 45% taller than in Sphenacodon ferox. The recent discovery of a nearly complete skull of Sphenacodon ferox has helped clarify other distinctions between the two species, including the number of teeth in certain parts of the jaws and the size of the indented notch between the maxillary and premaxillary bones in the upper jaw. The two species occur together in some formations, but Sphenacodon ferox apparently survived later into the Early Permian.Sphenacodon and Dimetrodon typically have been found in different geographical areas that were separated by the ancient Hueco Seaway that penetrated equatorial Pangaea during the Early Permian and \"covered much of southern New Mexico and parts of West Texas\". Sphenacodon is known from the west in New Mexico, Arizona, and Utah, and Dimetrodon is known mainly from the east in Texas and Oklahoma in more deltaic environments. However, the species Dimetrodon occidentalis is found in New Mexico. Each genus would have been an apex land predator in its region and likely preyed on amphibians, diadectids, and early synapsids and diapsids. Sphenacodon appears to have died out before about 280 million years ago during the Wolfcampian. The genus Dimetrodon survived until about 270 million years ago. Such large sphenacodontid predators were later replaced by therapsids, the group of synapsids that includes the direct ancestors of mammals.".
- Sphenacodon thumbnail Sphenacodon_ferox_2.jpg?width=300.
- Sphenacodon wikiPageID "5047333".
- Sphenacodon wikiPageLength "15623".
- Sphenacodon wikiPageOutDegree "40".
- Sphenacodon wikiPageRevisionID "692097327".
- Sphenacodon wikiPageWikiLink Alfred_Romer.
- Sphenacodon wikiPageWikiLink Arizona.
- Sphenacodon wikiPageWikiLink Carboniferous.
- Sphenacodon wikiPageWikiLink Category:Carboniferous_North_America.
- Sphenacodon wikiPageWikiLink Category:Carboniferous_geology_of_New_Mexico.
- Sphenacodon wikiPageWikiLink Category:Carboniferous_synapsids.
- Sphenacodon wikiPageWikiLink Category:Cisuralian_synapsids.
- Sphenacodon wikiPageWikiLink Category:Cisuralian_synapsids_of_North_America.
- Sphenacodon wikiPageWikiLink Category:Permian_North_America.
- Sphenacodon wikiPageWikiLink Category:Permian_geology_of_New_Mexico.
- Sphenacodon wikiPageWikiLink Category:Sphenacodonts.
- Sphenacodon wikiPageWikiLink Ctenospondylus.
- Sphenacodon wikiPageWikiLink Diadectidae.
- Sphenacodon wikiPageWikiLink Dimetrodon.
- Sphenacodon wikiPageWikiLink Edaphosaurus.
- Sphenacodon wikiPageWikiLink Edward_Drinker_Cope.
- Sphenacodon wikiPageWikiLink Eupelycosauria.
- Sphenacodon wikiPageWikiLink Field_Museum_of_Natural_History.
- Sphenacodon wikiPageWikiLink Haptodus.
- Sphenacodon wikiPageWikiLink List_of_synapsids.
- Sphenacodon wikiPageWikiLink Mammal.
- Sphenacodon wikiPageWikiLink New_Mexico.
- Sphenacodon wikiPageWikiLink North_America.
- Sphenacodon wikiPageWikiLink Oklahoma.
- Sphenacodon wikiPageWikiLink Othniel_Charles_Marsh.
- Sphenacodon wikiPageWikiLink Pangaea.
- Sphenacodon wikiPageWikiLink Pelycosaur.
- Sphenacodon wikiPageWikiLink Permian.
- Sphenacodon wikiPageWikiLink Prehistoric_Trackways_National_Monument.
- Sphenacodon wikiPageWikiLink Sphenacodontidae.
- Sphenacodon wikiPageWikiLink Synapsid.
- Sphenacodon wikiPageWikiLink Texas.
- Sphenacodon wikiPageWikiLink Therapsid.
- Sphenacodon wikiPageWikiLink Tuatara.
- Sphenacodon wikiPageWikiLink Utah.
- Sphenacodon wikiPageWikiLink File:Sphenac2.jpg.
- Sphenacodon wikiPageWikiLink File:Sphenacodon2.jpg.
- Sphenacodon wikiPageWikiLink File:Sphenacodon_ferox_1.jpg.
- Sphenacodon wikiPageWikiLinkText "Sphenacodon".
- Sphenacodon wikiPageWikiLinkText "sphenacodon".
- Sphenacodon authority "Marsh, 1878".
- Sphenacodon fossilRange "Cisuralian,".
- Sphenacodon imageCaption "Skeleton of Sphenacodon ferox in the Field Museum of Natural History.".
- Sphenacodon imageWidth "250".
- Sphenacodon name "Sphenacodon".
- Sphenacodon subdivision "* Sphenacodon ferox ( Marsh, 1878 ) * Sphenacodon ferocior ( Romer, 1937 ) * Sphenacodon britannicus ( )".
- Sphenacodon subdivisionRanks "Species".
- Sphenacodon synonyms "* Elcabrosaurus (Case, 1907) * Scoliomus (Williston and Case, 1913)".
- Sphenacodon wikiPageUsesTemplate Template:Automatic_taxobox.
- Sphenacodon wikiPageUsesTemplate Template:Basal_synapsids.
- Sphenacodon wikiPageUsesTemplate Template:Fossilrange.
- Sphenacodon wikiPageUsesTemplate Template:Italic_title.
- Sphenacodon wikiPageUsesTemplate Template:Portal.
- Sphenacodon wikiPageUsesTemplate Template:Reflist.
- Sphenacodon subject Category:Carboniferous_North_America.
- Sphenacodon subject Category:Carboniferous_geology_of_New_Mexico.
- Sphenacodon subject Category:Carboniferous_synapsids.
- Sphenacodon subject Category:Cisuralian_synapsids.
- Sphenacodon subject Category:Cisuralian_synapsids_of_North_America.
- Sphenacodon subject Category:Permian_North_America.
- Sphenacodon subject Category:Permian_geology_of_New_Mexico.
- Sphenacodon subject Category:Sphenacodonts.
- Sphenacodon comment "Sphenacodon (meaning \"wedge point tooth\") is an extinct genus of synapsid that lived from about 300 to about 280 million years ago (Ma) during the Late Carboniferous and Early Permian periods. Like the closely related Dimetrodon, Sphenacodon was a carnivorous member of the Eupelycosauria family Sphenacodontidae. However, Sphenacodon had a low crest along its back, formed from blade-like bones on its vertebrae (neural spines) instead of the tall dorsal sail found in Dimetrodon.".
- Sphenacodon label "Sphenacodon".
- Sphenacodon sameAs Q1050408.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs Σφηνακόδοντας.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs گوهایدندان.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs 스페나코돈.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs Sfenakodon.
- Sphenacodon sameAs Sphenacodon.
- Sphenacodon sameAs m.0d0dp8.
- Sphenacodon sameAs Сфенакодон.
- Sphenacodon sameAs Q1050408.
- Sphenacodon sameAs 楔齒龍屬.
- Sphenacodon wasDerivedFrom Sphenacodon?oldid=692097327.
- Sphenacodon depiction Sphenacodon_ferox_2.jpg.
- Sphenacodon isPrimaryTopicOf Sphenacodon.