Concise hierarchy
(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Squamata - (Family) Viperidae
Current position
Historical positions
| Viperidae (Family) Oppel, 1811 |
Ref:
A. Figueroa et al., 2016: table 1 (p. 4), fig. 1.
|
| Viperidae (Family) Oppel, 1811 |
Ref:
R.A. Pyron et al., 2013: 48, fig. 1.
|
| Viperidae (Family) Oppel, 1811 |
Ref:
W.E. Duellman, 1982: 966.
|
| Viperidae (Family) Oppel, 1811 |
Ref:
T.I. Storer et al., 1979
|
Number of Subtaxa