Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Squamata - (Family) Viperidae

Original position

Serpentes (Order) Linnaeus, 1758

Current position

Crotalinae (Subfamily) Oppel, 1811

Ref: R.A. Pyron et al., 2013: 48.

Alternative positions

Crotalidae (Family) Oppel, 1811	Ref: J. Coborn, 1994
Serpentes (Order) Linnaeus, 1758	Ref: [von] Linné, C., 1766: 372.

Historical positions

Crotalinae (Subfamily) Oppel, 1811	Ref: R.A. Pyron et al., 2013: 48.
Chordata (Phylum) Bateson, 1885	Ref: L. Margulis & K.V. Schwartz, 1982: 238. [rough position]
Crotalinae (Subfamily) Oppel, 1811	Ref: W.E. Duellman, 1982: 966.
Crotalidae (Family) Oppel, 1811	Ref: B. Grzimek, 1973-1975
Solenoglypha (Order)	Ref: E.R. Lankester, 1877: 452. [rough position]
Serpentes (Order) Linnaeus, 1758	Ref: C. a Linné, 1766: 349, 372.
Serpentes (Order) Linnaeus, 1758	Ref: C. Linnaeus, 1758: 196, 214. [new taxon]

Number of Subtaxa

2024	Available in Systema Naturae 2000	42s;19ss; †1s
1989-present	Systema Naturae 2000: 21 Feb 2017	[42s]
2016	P. Uetz et al.: 16 Aug 2016	[42s]
1982	W.E. Duellman: 966	27s
1758	C. Linnaeus	[3s]