| Basic info | Taxonomic history | Classification | Relationships |
| Morphology | Ecology and taphonomy | Map | Age range and collections |
Seymouriamorpha
Taxonomy
Seymouriamorpha was named by Watson (1917). It is not extant.
It was reranked as the unranked clade Seymouriamorpha by Martens et al. (2005).
It was assigned to Batrachosauria by Efremov (1946); to Diadecta by Olson (1947); to Cotylosauria by Lewis and Vaughn (1965); to Amphibia by Thurmond and Jones (1981); to Anthracosauria by Carroll (1988); to Batrachosauria by Gauthier et al. (1988) and Gauthier et al. (1989); and to Amphibia by Martens et al. (2005).
It was reranked as the unranked clade Seymouriamorpha by Martens et al. (2005).
It was assigned to Batrachosauria by Efremov (1946); to Diadecta by Olson (1947); to Cotylosauria by Lewis and Vaughn (1965); to Amphibia by Thurmond and Jones (1981); to Anthracosauria by Carroll (1988); to Batrachosauria by Gauthier et al. (1988) and Gauthier et al. (1989); and to Amphibia by Martens et al. (2005).
Synonymy list
| Year | Name and author |
|---|---|
| 1917 | Seymouriamorpha Watson |
| 1946 | Seymouriamorpha Efremov |
| 1947 | Seymouriamorpha Olson pp. 44, 45 |
| 1965 | Seymouriamorpha Lewis and Vaughn p. C12 |
| 1981 | Seymouriamorpha Thurmond and Jones p. 113 |
| 1988 | Seymouriamorpha Carroll |
| 1988 | Seymouriamorpha Gauthier et al. p. 139 fig. 4.3 |
| 1989 | Seymouriamorpha Gauthier et al. p. 340 |
| 2005 | Seymouriamorpha Martens et al. |
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