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Sphenacodontia

Synonymy list
YearName and author
1940Sphenacodontia Romer and Price pp. 18, 260
1946Sphenacodontia Kuhn p. 56
1953Sphenacodontia Olson and Beerbower p. 406
1954Sphenacodontia Haughton and Brink p. 5
1954Sphenacodontia Huene p. 28
1965Sphenacodontia Lewis and Vaughn p. C27
1966Sphenacodontia Olson p. 302
1977Sphenacodontia Currie p. 929
1981Sphenacodontia Langston, Jr. and Reisz p. 74
2002Sphenacodontia Kissel and Lehman p. 536
2004Sphenacodontia Kissel and Reisz
2011Sphenacodontia Fröbisch et al.
2015Sphenacodontia Spindler
2015Sphenacodontia Spindler et al. p. 18

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
suborderEupelycosauria
SphenacomorphaIvakhnenko 2003
suborderSphenacodontia
suborderSphenacodontia

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:35
Modified: 2017-04-17 15:15:35
Source: c = class, subp = subphylum, uc = unranked clade
References: Kiessling 2004, Carroll 1988, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Gzhelian to the top of the Kungurian or 303.70000 to 272.30000 Ma
Minimum age of oldest fossil (stem group age): 303.4 Ma

Collections (103 total)


Time interval Ma Country or state Original ID and collection number
Missourian305.9 - 303.4USA (Kansas) Ianthodon schultzei (80784)
Stephanian B304.8 - 303.4Czech Republic Macromerion schwarzenbergii, Macromerion schwartzenbergii (154179)
Gzhelian303.7 - 298.9Germany (Rhineland-Palatinate) Cryptovenator hirschbergeri (109702)
Gzhelian - Sakmarian303.7 - 290.1USA (New Mexico) Sphenacodon sp. (180989)
Virgilian303.4 - 298.9USA (Oklahoma) Sphenacodontia indet. (13947)
Virgilian303.4 - 298.9USA (New Mexico) Elcabrosaurus baldwini, Sphenacodon ferox (34761)
Virgilian - Wolfcamp303.4 - 268.0USA (New Mexico) Sphenacodon ferox (77412)
Asselian298.9 - 295.5United Kingdom (England) Oxyodon britannicus (80783)
Autunian298.9 - 295.0France (Jura) Geosaurus cynodus (181051)
Asselian - Sakmarian298.9 - 290.1USA (Utah) Sphenacodontidae indet. (13257)
Asselian - Sakmarian298.9 - 290.1USA (Texas) Dimetrodon natalis (11165)
Wolfcamp296.4 - 268.0USA (Colorado) Cutleria wilmarthi (85475 85480)
Wolfcamp296.4 - 268.0USA (Texas) Dimetrodon limbatus (180978) Dimetrodon milleri (79162)
Wolfcamp296.4 - 268.0USA (New Mexico) Dimetrodon limbatus (181037) Sphenacodon ferocior (80916 180382 181076) Sphenacodon ferox (80833 179932 180106 180383 180384 180940) Sphenacodon sp. (85436 181075) Sphenacodon sp., Dimetrodon occidentalis (180974) Sphenacodon sp., Sphenacodon ferox (181077) Sphenacodontidae indet., Sphenacodon ferocior, Dimetrodon occidentalis (28067)
Wolfcamp - Leonard296.4 - 268.0USA (Utah) Sphenacodon ferocior, Ctenospondylus casei (80110)
Sakmarian295.5 - 290.1USA (Texas) Dimetrodon incisivus (28124) Dimetrodon sp. (28120 28123 28125)
Sakmarian295.5 - 290.1USA (Ohio) Ctenospondylus ninevehensis (80877)
Sakmarian - Artinskian295.5 - 279.3USA (New Mexico) Sphenacodon sp. (180988)
Sakmarian - Artinskian295.5 - 279.3USA (Texas) Dimetrodon sp. (28324)
Artinskian290.1 - 279.3USA (Texas) Clepsydrops natalis, Dimetrodon rectiformis, Theropleura obtusidens (28142) Ctenorhachis jacksoni (181054) Dimetrodon booneorum (13080) Dimetrodon longiramus, Clepsydrops macrospondylus (28238) Dimetrodon milleri (84716) Dimetrodon obtusidens (28149) Dimetrodon sp. (22714 28141 28143 28144 28145 28147 28148 28150 28239 28240) Dimetrodon sp., Ctenospondylus casei (28146)
Artinskian290.1 - 279.3USA (Oklahoma) Dimetrodon sp. (79402)
Artinskian290.1 - 279.3Canada (Prince Edward Island) Bathygnathus borealis (48897)
Artinskian290.1 - 279.3Germany (Thuringia) Dimetrodon teutonis (80112)
Artinskian - Kungurian290.1 - 272.3USA (Texas) Dimetrodon semiradicatus, Dimetrodon obtusidens (28253) Dimetrodon sp. (28241 28242 28249 28250 28252 85299 85300 85301)
Artinskian - Kungurian290.1 - 272.3USA (Oklahoma) Dimetrodon dollovianus, Dimetrodon macrospondylus, Dimetrodon platycentrus (85733)
Artinskian - Roadian290.1 - 268.8USA (Texas) Dimetrodon gigashomogenes (180992)
Leonard290.1 - 268.0USA (Texas) Dimetrodon gigashomogenes (85362)
Leonard290.1 - 268.0USA (Oklahoma) Dimetrodon giganhomogenes, Dimetrodon grandis (180990) Dimetrodon limbatus (85567 180991) Dimetrodon sp. (79815 84941 87054) Sphenacodontidae indet. (67862)
Kungurian279.3 - 272.3USA (Oklahoma) Dimetrodon loomisi (67945) Dimetrodon sp. (79602)
Kungurian279.3 - 272.3USA (Texas) Clepsydrops natalis, Dimetrodon incisivus, Dimetrodon loomisi, Secodontosaurus willistoni, Dimetrodon kempae (28267) Dimetrodon gigashomogenes (12976 27704 67735 85553 177000 177003 177014 177017 177019 178738) Dimetrodon loomisi, Dimetrodon gigashomogenes, Embolophorus dollovianus (28256) Dimetrodon sp. (28251 28261 28264 28270 67737 85551 85552 85554) Dimetrodon sp., Dimetrodon grandis, Theropleura grandis (28275)
Kungurian - Roadian279.3 - 268.8USA (Texas) Dimetrodon angelensis (80689 85170) Eosyodon hudsoni (79600)