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Branch-based clade:
†
Seymouriamorpha
Watson 1917 [Laurin & Klembara 2020]
(amphibian)
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Entity:
Labyrinthodontia (Clade)
..†Acanthostegidae (Family)
..[†Anthracosauria] (Clade)
..†Baphetidae (Family)
..†Colosteidae (Family) - colosteids
..†Crassigyrinidae (Family)
..†Hynerpeton (Genus)
..†Ichthyostegidae (Family)
..†Spathicephalidae (Family)
..Tetrapoda (Clade)
..†Tulerpetontidae (Family)
..†Whatcheeriidae (Family)
..†Ymeria (Genus)
..[†Seymouriamorpha] (Clade)
Variants
Rank-based name
:
†
Seymouriamorpha
(Order)
Watson, 1917
Ref:
M.J. Benton, 2015
: 437; 9 Apr 2025.
[inferred]
Rank-based name
:
†
Seymouriamorpha
(Suborder)
Watson, 1917
Ref:
R.L. Carroll, 1988
: 613; 9 Apr 2025.
[inferred]
©2004-2025 Universal Taxonomic Services
Last updated:
21 Sep 2025