Concise hierarchy
(Kingdom) Animalia - (Phylum) Chordata - (Class) Placodermi
Current position
Alternative positions
Historical positions
| †Placodermi (Class) McCoy, 1848 |
Ref:
M.J. Benton, 2005: 55, 390.
|
| †Placodermi (Class) McCoy, 1848 |
Ref:
J.J. Sepkoski Jr., 2002: 300.
|
| †Placodermi (Class) McCoy, 1848 |
Ref:
R.L. Carroll, 1988: 596.
|
| †Placodermi (Subclass) McCoy, 1848 |
Ref:
A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 620).
|
| †Placodermi (Class) McCoy, 1848 |
Ref:
B. Grzimek, 1973-1975
|
Number of Subtaxa