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Taxon:
Family †
Seymouriidae
Williston, 1911
(amphibian)
Taxa
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Hierarchy
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Entity:
†Seymouriamorpha (Order)
..†Karpinskiosauridae (Family)
..†Kotlassiidae (Family)
..†Leptorophidae (Family)
..†Seymouriidae (Family)
....†Gnorhinosuchus (Genus)
....†Nyctiboetus (Genus)
....†Rhinosauriscus (Genus)
....†Seymouria (Genus)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Chordata
-
(Order)
Seymouriamorpha
Current position
†
Seymouriamorpha
(Order)
Watson, 1917
Ref:
R.L. Carroll, 1988
: App. (p. 613).
[implicit]
Alternative positions
†
Seymouriamorpha
(Suborder)
Watson, 1917
Ref:
R.L. Carroll, 1988
: App. (p. 613).
Historical positions
Tetrapoda
(Clade)
Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.
Ref:
R.V. Hill, 2005
: fig. 5.
[rough position] [indirect]
†
Seymouriamorpha
(Suborder)
Watson, 1917
Ref:
R.L. Carroll, 1988
: App. (p. 613).
Number of Subtaxa
2026
Available in Systema Naturae 2000
†4g;3s
1989-present
Systema Naturae 2000
: 31 Aug 2019
[; †4g]
1988
R.L. Carroll
: 613
[; †4g]
©2004-2026 Universal Taxonomic Services
Last updated:
28 Aug 2026