Concise hierarchy
(Kingdom) Animalia - (Phylum) Chordata - (Class) Sauropsida
Current position
Alternative positions
Historical positions
| Anapsida (Subclass) Osborn, 1903 |
Ref:
1998
|
| Anapsida (Subclass) Osborn, 1903 |
Ref:
P. Uetz, [1995-]1996: 30 Dec 1996.
|
| Anapsida (Subclass) Osborn, 1903 |
Ref:
1995
|
| Anapsida (Subclass) Osborn, 1903 |
Ref:
A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 622).
|
| Anapsida (Subclass) Osborn, 1903 |
Ref:
T.I. Storer et al., 1979
|
| Anapsida (Subclass) Osborn, 1903 |
Ref:
B. Grzimek et al., 1973 (1971): 584.
|
| Eusauropsida (Class) |
Ref:
L.B. Halstead, 1969: 101.
|
Number of Subtaxa