Concise hierarchy
(Kingdom) Animalia - (Phylum) Chordata - (Class) Amphibia - (Order) Unnamed
Current position
Alternative positions
Historical positions
| Amphibia (Class) Linnaeus, 1758 |
Ref:
1998
|
| Amphibia (Class) Linnaeus, 1758 |
Ref:
1995
|
| Amphibia (Class) Gray, 1825 |
Ref:
R.L. Carroll, 1988: 181.
|
| Amphibia (Class) Linnaeus, 1758 |
Ref:
A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 622).
|
| Amphibia (Class) Linnaeus, 1758 |
Ref:
H.-P. Schultze et al., 1985: [1], 9.
|
| Amphibia (Class) Linnaeus, 1758 |
Ref:
W.E. Duellman, 1982: 945.
|
| Amphibia (Class) Gray, 1825 |
Ref:
L.B. Halstead, 1974: 171.
|
| Amphibia (Class) Gray, 1825 |
Ref:
E.R. Lankester, 1877: 452.
[implicit] |
Number of Subtaxa