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Clade:
Synapsida
Osborn 1903 [Gauthier
et al.
1989], nom. cl. inval.
(vertebrate)
Taxa
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Hierarchy
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Entity:
[Amniota] (Clade) - amniotes
..[Reptilia]
..[Sauropsida]
..[Synapsida] (Clade)
....[†Caseasauria] ([unranked])
....[Therapsida] ([unranked])
Authorship
SN2000 author citation
:
H.F. Osborn, 1903 [Gauthier
et al.
, 1989], nom. cl. praeinit.
Subsequent clade name (orig. spell.)
:
Original definition [PhyloCode]
:
Gauthier et al., 1989: 340 ("mammals and their extinct allies").
Attributes
Pre-starting-point clade name (nom. cl. inval.: "nom. cl. praeinit.") [PhyloCode: Note 6.2.1 ([1984-]<2020)]
Ref:
S.J. Brands (comp.), 1989-present.
Syst. Nat. 2000
: 9 Apr 2025.
Variants
Ranked name
:
†
Synapsida
(Class)
Osborn, 1903
Established (clade) name
:
Synapsida
(Clade)
Osborn 1903 [Laurin & Reisz 2020]
Ref:
M. Laurin & R.R. Reisz, 2020
: [811]; 9 Apr 2025.
[inferred]
Current rank
:
†
Synapsida
(Class)
Osborn, 1903
©2004-2025 Universal Taxonomic Services
Last updated:
21 Sep 2025