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Ophiacodon
Taxonomy
Ophiacodon was named by Marsh (1878). It is not extant. Its type is Ophiacodon mirus. It is the type genus of Ophiacodontidae.
It was assigned to Clepsydropidae by Hay (1902); to Ophiacodontia by Olson (1966); to Synapsida by Gauthier et al. (1989); and to Ophiacodontidae by Hay (1930), Romer (1936), Romer and Price (1940), Lewis and Vaughn (1965), Kuhn (1966), Reisz (1986), Carroll (1988), Kissel and Lehman (2002) and Haubold et al. (2005).
It was assigned to Clepsydropidae by Hay (1902); to Ophiacodontia by Olson (1966); to Synapsida by Gauthier et al. (1989); and to Ophiacodontidae by Hay (1930), Romer (1936), Romer and Price (1940), Lewis and Vaughn (1965), Kuhn (1966), Reisz (1986), Carroll (1988), Kissel and Lehman (2002) and Haubold et al. (2005).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1878 | Theropleura Cope p. 519 |
| 1878 | Ophiacodon Marsh |
| 1880 | Theropleura Cope p. 40 |
| 1888 | Theropleura Cope p. 287 |
| 1902 | Theropleura Hay p. 433 |
| 1902 | Ophiacodon Hay p. 434 |
| 1907 | Theropleura Case |
| 1907 | Poliosaurus Case p. 18 |
| 1925 | Winfieldia Romer p. 182 |
| 1930 | Poliosaurus Hay p. 47 |
| 1930 | Ophiacodon Hay p. 49 |
| 1930 | Theropleura Hay p. 50 |
| 1930 | Winfieldia Hay p. 50 |
| 1936 | Ophiacodon Romer p. 89 |
| 1936 | Poliosaurus Romer p. 89 |
| 1940 | Ophiacodon Romer and Price p. 18 |
| 1965 | Ophiacodon Lewis and Vaughn p. C26 |
| 1966 | Ophiacodon Kuhn p. 119 |
| 1966 | Ophiacodon Olson p. 301 |
| 1986 | Ophiacodon Reisz p. 69 |
| 1988 | Ophiacodon Carroll |
| 1989 | Ophiacodon Gauthier et al. p. 341 |
| 2002 | Ophiacodon Kissel and Lehman p. 536 |
| 2005 | Ophiacodon Haubold et al. p. 78 |
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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. †Ophiacodon Marsh 1878
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†Ophiacodon hilli Romer 1925
†Ophiacodon major Romer and Price 1940
†Ophiacodon mirus Marsh 1878
†Ophiacodon navajovicus Case 1907
†Ophiacodon retroversus Cope 1878
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Invalid names: Clepsydrops leptocephalus Cope 1884 [synonym], Theropleura triangulata Cope 1878 [synonym], Therosaurus watsoni von Huene 1925 [synonym]
†Ophiacodon uniformis Cope 1878
Invalid names: Poliosaurus Case 1907 [synonym], Theropleura Cope 1878 [synonym], Winfieldia Romer 1925 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Gzhelian to the top of the Leonardian or 303.70000 to 273.01000 Ma
Collections (66 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kasimovian - Kungurian | USA (Utah) | O. navajovicus (218159) | |
| Virgilian | USA (New Mexico) | Dimetrodon navajovicus, O. navajovicus (34761) | |
| Virgilian | USA (Kansas) | O. sp. (215555) | |
| Virgilian | USA (Oklahoma) | O. mirus (13947) | |
| Gzhelian - Sakmarian | USA (New Mexico) | O. sp. (180989) | |
| Virgilian - Wolfcampian | USA (New Mexico) | O. mirus (77412) | |
| Asselian | USA (Texas) | O. retroversus (79163) | |
| Asselian | United Kingdom (England) | O. sp. (89649) | |
| Asselian - Sakmarian | USA (Utah) | O. navajovicus (13257) | |
| Asselian - Sakmarian | USA (Texas) | O. uniformis, O. retroversus (11165) | |
| Wolfcampian | USA (New Mexico) | O. mirus (80833 85337 85433 180106 180383 180384 180940) O. sp. (180382 180974 181075 181077 181078) | |
| Wolfcampian | USA (Texas) | O. uniformis, O. retroversus, Theropleura uniformis (79162) | |
| Wolfcampian | USA (Colorado) | O. sp. (85476) | |
| Wolfcampian - Leonardian | USA (Utah) | O. sp. (80110) | |
| Permian | USA (Oklahoma) | O. retroversus (221391) | |
| Sakmarian | USA (Texas) | O. major (28120) O. retroversus (28123) Theropleura sp. (28121 28124) | |
| Sakmarian | USA (Ohio) | O. uniformis (94802) | |
| Sakmarian - Artinskian | USA (Kansas) | Winfieldia hilli (80732) | |
| Artinskian | USA (Oklahoma) | O. sp. (220872) | |
| Artinskian | USA (Texas) | O. major, Theropleura retroversa, Clepsydrops leptocephalus (28148) O. retroversus (28238) O. retroversus, Theropleura retroversa, Theropleura triangulata (28142) O. retroversus, Theropleura sp. (28150) O. sp. (22714) O. uniformis, O. retroversus (28146 84716) O. uniformis, Theropleura sp. (13080) Theropleura sp. (28141 28149 28239) Therosaurus watsoni, O. uniformis, O. retroversus (28145) | |
| Artinskian - Kungurian | USA (Texas) | O. major (85299 85300) Theropleura sp. (28241 28249 28250 28252 28253) | |
| Artinskian - Kungurian | USA (Oklahoma) | O. major (85733) | |
| Leonardian | USA (Texas) | O. major, O. uniformis (80690) | |
| Leonardian | USA (Oklahoma) | O. retroversus (180991) O. sp. (84941) O. uniformis (85567) Poliosaurus uniformis (87054) | |
| Kungurian | USA (Texas) | Theropleura sp. (28261 28264 28267 28270 28273 28276 28277) Theropleura sp., Poliosaurus sp. (28272) |