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Sphenacodontoidea

Taxonomy
Sphenacodontoidea was named as a suborder.

It was reranked as the unranked clade Sphenacodontoidea by Fröbisch et al. (2011).

It was assigned to Pelycosauria by Daly (1973); and to Sphenacodontia by Fröbisch et al. (2011).

Synonymy list
YearName and author
1973Sphenacodontoidea Daly p. 587
2011Sphenacodontoidea Fröbisch et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
RankNameAuthor
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
suborderEupelycosauria
—SphenacomorphaIvakhnenko 2003
suborderSphenacodontia
—Sphenacodontoidea
—Sphenacodontoidea

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.

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Fm. †Sphenacodontidae Marsh 1878
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G. †Cryptovenator Fröbisch et al. 2011
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†Cryptovenator hirschbergeri Fröbisch et al. 2011
G. †Ctenorhachis Hook and Hotton 1991
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†Ctenorhachis jacksoni Hook and Hotton 1991
Subfm. †Secodontosaurinae Romer and Price 1940
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G. †Secodontosaurus Romer 1936
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Invalid names: Dimetrodon longiramus Case 1907 [synonym], Secodontosaurus willistoni Romer 1936 [synonym]
Subfm. †Sphenacodontinae Romer 1936
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G. †Bathygnathus Leidy 1853
G. †Ctenospondylus Romer 1936
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†Ctenospondylus casei Romer 1936
G. †Dimetrodon Cope 1878
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†Dimetrodon angelensis Olson 1962
†Dimetrodon booneorum Romer 1937
†Dimetrodon borealis Leidy 1853
†Dimetrodon grandis Case 1907
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Invalid names: Dimetrodon maximus Romer 1936 [synonym]
†Dimetrodon limbatus Cope 1877
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Invalid names: Dimetrodon incisivus Cope 1878 [synonym], Dimetrodon rectiformis Cope 1878 [synonym], Dimetrodon semiradicatus Cope 1881 [synonym]
†Dimetrodon loomisi Romer 1937
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Invalid names: Dimetrodon platycentrus Case 1907 [synonym]
†Dimetrodon milleri Romer 1937
†Dimetrodon natalis Cope 1878
†Dimetrodon occidentalis Berman 1977
†Dimetrodon teutonis Berman et al. 2001
G. †Macromerion Fritsch 1879
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G. †Neosaurus Nopsca 1923
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†Neosaurus cynodus Gervais 1869
Invalid names: Geosaurus Gervais 1869 [replaced]
G. †Sphenacodon Marsh 1878
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†Sphenacodon britannicus von Huene 1908
†Sphenacodon ferocior Romer 1937
†Sphenacodon ferox Marsh 1878
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Invalid names: Scoliomus puercensis Williston and Case 1913 [synonym]
Invalid names: Oxyodon von Huene 1908 [replaced]
Invalid names: Dimetrodon kempae Romer 1937 [nomen dubium], Eosyodon Olson 1962 [nomen dubium], Eosyodon hudsoni Olson 1962 [nomen dubium], Palaeohatteriidae Baur 1889 [synonym], Pantelosauridae Huene 1925 [synonym], Varanopsinae Romer 1936 [empty]
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: Carroll 1988, Hendy et al. 2009

Age range: base of the Kasimovian to the top of the Leonardian or 307.00000 to 273.01000 Ma

Collections (109 total)


Time interval Ma Country or state Original ID and collection number
Kasimovian307.0 - 303.7USA (Illinois) Sphenacodontidae indet. (224241)
Kasimovian - Kungurian307.0 - 272.3USA (Utah) Sphenacodon sp. (218159)
Virgilian303.7 - 298.9USA (New Mexico) Sphenacodon ferox (34761)
Gzhelian - Asselian303.7 - 295.5Germany (Rhineland-Palatinate) Cryptovenator hirschbergeri (109702)
Gzhelian - Sakmarian303.7 - 290.1USA (New Mexico) Sphenacodon sp. (180989)
Virgilian - Wolfcampian303.7 - 286.0USA (New Mexico) Sphenacodon ferox (77412)
Stephanian B301.5 - 301.0Czech Republic (Rakovník) Macromerion schwarzenbergii, Macromerion schwartzenbergii (154179)
Asselian298.9 - 295.5USA (Texas) Dimetrodon sp. (173721 207496)
Asselian298.9 - 295.5United Kingdom (England) Oxyodon britannicus (80783)
Asselian - Sakmarian298.9 - 290.1USA (Utah) Sphenacodontidae indet. (13257)
Asselian - Sakmarian298.9 - 290.1USA (Texas) Dimetrodon natalis (11165) Dimetrodon sp. (113555)
Wolfcampian298.9 - 286.0USA (Texas) Dimetrodon limbatus (180978) Dimetrodon milleri (79162)
Wolfcampian298.9 - 286.0USA (New Mexico) Dimetrodon limbatus (181037) Dimetrodon sp. (181078) Sphenacodon ferocior (80916 180382 181076) Sphenacodon ferocior, Dimetrodon occidentalis, Sphenacodon sp., Dimetrodon occidentalis (180974) Sphenacodon ferox (80833 179932 180106 180383 180384 180940) Sphenacodon sp. (85436 181075) Sphenacodon sp., Sphenacodon ferox (181077) Sphenacodontidae indet., Sphenacodon ferocior, Dimetrodon occidentalis (28067)
Autunian298.9 - 283.5France (Jura) Geosaurus cynodus (181051)
Wolfcampian - Leonardian298.9 - 273.01USA (Utah) Sphenacodon ferocior, Ctenospondylus casei (80110)
Permian298.9 - 251.902USA (Oklahoma) Dimetrodon limbatus (221391 221392)
Sakmarian293.52 - 290.1USA (Texas) Dimetrodon incisivus (28124) Dimetrodon sp. (28120 28123 28125)
Sakmarian293.52 - 290.1USA (Ohio) Ctenospondylus ninevehensis (80877)
Sakmarian - Artinskian293.52 - 279.3USA (New Mexico) Sphenacodon sp. (180988)
Sakmarian - Artinskian293.52 - 279.3USA (Texas) Dimetrodon sp. (28324)
Artinskian290.1 - 279.3Germany (Thuringia) Dimetrodon teutonis (80112)
Artinskian290.1 - 279.3USA (Oklahoma) Dimetrodon sp. (79402 220872) Sphenacodontidae indet., Dimetrodon sp. (67862)
Artinskian290.1 - 279.3Canada (Prince Edward Island) Bathygnathus borealis (48897)
Artinskian290.1 - 279.3USA (Texas) Clepsydrops natalis, Clepsydrops limbatus, Dimetrodon semiradicatus (108766) 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)
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 sp. (180992)
Leonardian286.0 - 273.01USA (Texas) Dimetrodon gigashomogenes (85362)
Leonardian286.0 - 273.01USA (Oklahoma) Dimetrodon grandis, Dimetrodon giganhomogenes (180990) Dimetrodon limbatus (85567 180991) Dimetrodon sp. (79815 84941 87054)
Kungurian279.3 - 272.3USA (Texas) Clepsydrops natalis, Dimetrodon incisivus, Dimetrodon loomisi, Secodontosaurus willistoni, Dimetrodon kempae (28267) Dimetrodon gigashomogenes (12976 27704 85553 177000 177003 177014 177017 177019 178738) Dimetrodon loomisi, Dimetrodon gigashomogenes, Embolophorus dollovianus (28256) Dimetrodon sp. (28251 28261 28264 28270 67735 67737 85551 85552 85554) Dimetrodon sp., Dimetrodon grandis, Theropleura grandis (28275)
Kungurian279.3 - 272.3USA (Oklahoma) Dimetrodon loomisi (67945) Dimetrodon sp. (79602)
Kungurian - Roadian279.3 - 268.8USA (Texas) Dimetrodon angelensis (80689 85170) Eosyodon hudsoni (79600)