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Seymouriidae
Taxonomy
Seymouriidae was named by Williston (1911). It is the type family of Seymourioidea.
It was synonymized subjectively with Conodectidae by Hay (1930).
It was assigned to Pareiasauria by Case (1911); to Seymouriamorpha by Kuhn (1946); to Seymourioidea by Carroll et al. (1972) and Bulanov (2003); and to Seymouriamorpha by Lewis and Vaughn (1965), Vaughn (1966), Carroll (1988) and Martens et al. (2005).
It was synonymized subjectively with Conodectidae by Hay (1930).
It was assigned to Pareiasauria by Case (1911); to Seymouriamorpha by Kuhn (1946); to Seymourioidea by Carroll et al. (1972) and Bulanov (2003); and to Seymouriamorpha by Lewis and Vaughn (1965), Vaughn (1966), Carroll (1988) and Martens et al. (2005).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1911 | Seymouridae Case pp. 9, 50 |
| 1911 | Seymouriidae Williston |
| 1946 | Seymouriidae Kuhn p. 55 |
| 1965 | Seymouriidae Lewis and Vaughn p. C12 |
| 1966 | Seymouriidae Vaughn p. 604 |
| 1972 | Seymouriidae Carroll et al. p. 21 |
| 1988 | Seymouriidae Carroll |
| 2003 | Seymouriidae Bulanov |
| 2005 | Seymouridae Martens et al. |
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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.
Fm. †Seymouriidae Williston 1911
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G. †Seymouria Broili 1904
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†Seymouria baylorensis Broili 1904
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Invalid names: Desmospondylus anomalus Williston 1910 [synonym]
†Seymouria grandis Olson 1979
†Seymouria sanjuanensis Vaughn 1966
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 272.30000 Ma
Collections (17 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wolfcampian | USA (Colorado) | Seymouria sp. (85479) | |
| Wolfcampian | USA (New Mexico) | Seymouria sanjuanensis (218165) | |
| Artinskian | Germany (Thuringia) | Seymouria sanjuanensis (80112) | |
| Artinskian | USA (Utah) | Seymouria sanjuanensis (218163 218164) | |
| Artinskian | USA (Oklahoma) | Seymouria baylorensis (79402) Seymouria sp. (67862) | |
| Kungurian | USA (Texas) | Seymouria baylorensis (28264) Seymouria baylorensis, Desmospondylus anomalus (28256) Seymouria grandis (178738) Seymouria sp. (22715 28266 28267 28272 67735) | |
| Kungurian | USA (Oklahoma) | Seymouria grandis (181086 181087) |