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Ophiacodon retroversus

Ophiacodontidae

Taxonomy
Theropleura retroversa was named by Cope (1878). Its type specimen is AMNH 4155 (formerly 1111), a partial skeleton (postcrania only), and it is a 3D body fossil. Its type locality is Mount Barry, 12 (Admiral Formation), which is in an Artinskian terrestrial shale in the Admiral Formation of Texas. It is the type species of Theropleura.

It was recombined as Ophiacodon retroversus by Romer and Price (1940) and Reisz (1986).

Synonyms
Synonymy list
YearName and author
1878Theropleura retroversa Cope p. 519
1878Theropleura triangulata Cope p. 520
1884Clepsydrops leptocephalus Cope p. 30
1888Clepsydrops leptocephalus Cope p. 287
1888Theropleura retroversa Cope p. 287
1888Theropleura triangulata Cope p. 287
1892Diopeus leptocephalus Cope p. 11
1902Clepsydrops leptocephalus Hay p. 431
1902Theropleura retroversa Hay p. 433
1902Theropleura triangulata Hay p. 433
1907Theropleura retroversa Case p. 25
1925Therosaurus watsoni von Huene
1930Diopeus leptocephalus Hay p. 50
1930Theropleura retroversa Hay p. 50
1940Ophiacodon retroversus Romer and Price pp. 18, 243
1986Ophiacodon retroversus Reisz p. 71

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
suborderEupelycosauria
familyOphiacodontidaeNopsca 1923
genusOphiacodonMarsh 1878
speciesretroversus()

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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Invalid names: Clepsydrops leptocephalus Cope 1884 [synonym], Theropleura triangulata Cope 1878 [synonym], Therosaurus watsoni von Huene 1925 [synonym]
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 Asselian to the top of the Artinskian or 298.90000 to 279.30000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Asselian298.9 - 295.5USA (Texas) Ophiacodon retroversus (79163)
Asselian - Sakmarian298.9 - 290.1USA (Texas) Ophiacodon retroversus (11165)
Wolfcampian298.9 - 286.0USA (Texas) Ophiacodon retroversus (79162)
Permian298.9 - 251.902USA (Oklahoma) Ophiacodon retroversus (221391)
Sakmarian293.52 - 290.1USA (Texas) Ophiacodon retroversus (28123)
Artinskian290.1 - 279.3USA (Texas) Ophiacodon retroversus (28146 28150 28238 84716) Ophiacodon retroversus, Theropleura retroversa, Theropleura triangulata (type locality: 28142) Theropleura retroversa, Clepsydrops leptocephalus (28148) Theropleura sp. (28141) Therosaurus watsoni, Ophiacodon retroversus (28145)
Leonardian286.0 - 273.01USA (Oklahoma) Ophiacodon retroversus (180991)