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Sphenacodon

Sphenacodontidae

Taxonomy
Sphenacodon was named by Marsh (1878). It is not extant. Its type is Sphenacodon ferox. It is the type genus of Sphenacodontidae, Sphenacodontinae.

It was assigned to Clepsydropidae by Hay (1902); to Naosaurinae by Case (1907); to Sphenacodontinae by Reisz (1986); and to Sphenacodontidae by Hay (1930) and Carroll (1988).

Synonyms
Synonymy list
YearName and author
1878Sphenacodon Marsh
1902Sphenacodon Hay p. 434
1907Sphenacodon Case p. 66
1908Oxyodon von Huene p. 431 fig. 1
1930Sphenacodon Hay p. 52
1986Sphenacodon Reisz p. 77
1988Sphenacodon Carroll

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
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
familySphenacodontidaeMarsh 1878
subfamilySphenacodontinae
genusSphenacodonMarsh 1878

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.

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]
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 Virgilian to the top of the Sakmarian or 303.40000 to 290.10000 Ma

Collections (21 total)


Time interval Ma Country or state Original ID and collection number
Kasimovian - Kungurian307.0 - 272.3USA (Utah) S. sp. (218159)
Gzhelian - Sakmarian303.7 - 290.1USA (New Mexico) S. sp. (180989)
Virgilian303.4 - 298.9USA (New Mexico) S. ferox (34761)
Virgilian - Wolfcamp303.4 - 268.0USA (New Mexico) S. ferox (77412)
Asselian298.9 - 295.5United Kingdom (England) Oxyodon britannicus (80783)
Wolfcamp296.4 - 268.0USA (New Mexico) S. ferocior (28067 80916 180382 181076) S. ferocior, S. sp. (180974) S. ferox (80833 179932 180106 180383 180384 180940) S. sp. (85436 181075) S. sp., S. ferox (181077)
Wolfcamp - Leonard296.4 - 268.0USA (Utah) S. ferocior (80110)
Sakmarian - Artinskian295.5 - 279.3USA (New Mexico) S. sp. (180988)