The Taxonomicon
Entity by Scientific Name
Entity by Epithet
Entity by Identifier
Entity by Common Name
Taxon by Scientific Name (above family group)
Taxon by Scientific Name (family group)
Taxon by Scientific Name (genus group)
Taxon by Scientific Name (species group)
Taxon by Scientific Name (below species group)
Taxon by Authorship
Object by Name
Object by Number
Phenomenon by Name
Homonym
Topic
Person by Last Name
Organization by Name
Reference by Year
Reference by Title
Home
Site map
|
Contact
Branch-based clade:
Sphenodontia
Williston 1925 [Evans 2003]
(reptile)
Taxa
Advanced Search
Entity
Show Invalid Names
Show Alternatives
Bookmarks
Set Bookmark
Go to Bookmark
Hierarchy
Nomenclature
Taxonomy
Properties
Relationships
Bibliography
Links
Entity:
Rhynchocephalia (Order) - tuataras
..†Gephyrosauridae (Family)
..Sphenodontia (Clade)
....Acrosphenodontia (Clade)
....†Diphydontosaurus (Genus)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Chordata
-
(Class)
Reptilia
-
(Order)
Rhynchocephalia
Branch-based clade
Sphenodontia
(Clade)
Williston 1925 [Evans 2003]
Ref:
D.G. DeMar Jr. et al., 2022
: 4.
Current position
Rhynchocephalia
(Order)
Günther, 1867
Ref:
D.G. DeMar Jr. et al., 2022
: 4; DeMar et al., 2022: fig. 26.
[implicit]
Alternative positions
Lepidosauria
(Clade)
Haeckel 1866 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval.
Ref:
M.J. Benton, 2005
: 237; Benton, 2005: box 8.8 (p. 233).
Rhynchocephalia
(Clade)
Günther 1867 [Gauthier, Estes & de Queiroz 1988]
Ref:
D.G. DeMar Jr. et al., 2022
: 4; DeMar et al., 2022: fig. 26.
Historical positions
Rhynchocephalia
(Clade)
Günther 1867 [Gauthier, Estes & de Queiroz 1988]
Ref:
D.G. DeMar Jr. et al., 2022
: 4, 5, figs. 24A, 26.
Lepidosauria
(Superorder)
Haeckel, 1866
Ref:
M.J. Benton, 2005
: 237, box 8.8.
Number of Subtaxa
2025
Available in Systema Naturae 2000
1f;1g;1s; †4f;34g;29s
©2004-2025 Universal Taxonomic Services
Last updated:
21 Sep 2025