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Clade:
Acrosphenodontia
Chambi-Trowell, Martinelli, Whiteside, Romo de Vivar, Soares, Schultz, Gill, Benton & Rayfield 2021
(reptile)
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Hierarchy
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Entity:
Sphenodontia (Clade)
..†Diphydontosaurus (Genus)
..Acrosphenodontia (Clade)
....Eusphenodontia (Clade)
....†Godavarisaurus (Genus)
....†Planocephalosaurus (Genus)
....†Rebbanasaurus (Genus)
....†Theretairus (Genus)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Chordata
-
(Class)
Reptilia
-
(Order)
Rhynchocephalia
Current position
Sphenodontia
(Clade)
Williston 1925 [Evans 2003]
Ref:
D.G. DeMar Jr. et al., 2022
: 4; DeMar et al., 2022: fig. 26.
Historical positions
Sphenodontia
(Clade)
Williston 1925 [Evans 2003]
Ref:
D.G. DeMar Jr. et al., 2022
: 4, figs. 24A, 26.
Number of Subtaxa
2025
Available in Systema Naturae 2000
1f;1g;1s; †4f;33g;28s
©2004-2025 Universal Taxonomic Services
Last updated:
21 Sep 2025