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Branch-based clade:
Synapsida
Osborn 1903 [Laurin & Reisz 2020]
(mammal)
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Entity:
Amniota (Clade)
..Reptilia (Class) - reptiles
..Synapsida (Clade)
....†Pelycosauria (Order) - pelycosaurs
....Therapsida (Clade)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Chordata
Current position
Amniota
(Clade)
Haeckel 1866 [Laurin & Reisz 2020]
Ref:
M. Laurin & R.R. Reisz, 2020
: [811].
Historical positions
Amniota
(Clade)
Haeckel 1866 [Laurin & Reisz 2020]
Ref:
M. Laurin & R.R. Reisz, 2020
: [811]-814; x.
Number of Subtaxa
2026
Available in Systema Naturae 2000
1c;27o;165f;1205g;5120s;4356ss;302v; ‡12f;52g;113s;33ss;1v; †55o;405f;4514g;1786s;65ss;1v
©2004-2026 Universal Taxonomic Services
Last updated:
28 Aug 2026