Concise hierarchy

(Kingdom) Animalia - (Phylum) Mollusca - (Class) Polyplacophora - (Order) Chitonida - (Family) Chitonidae

Original position

Testacea (Order) Linnaeus, 1758

Subsequent positions

Chitoninae (Subfamily) Rafinesque, 1815

Original entries

Chiton aculeatus Linnaeus, 1758
Chiton hispidus Linnaeus, 1758
Chiton punctatus Linnaeus, 1758
Chiton tuberculatus Linnaeus, 1758

Current position

Chitoninae (Subfamily) Rafinesque, 1815

Ref: V.G. Millard, 1997: 12; WoRMS, [13 Jan 2012].

Alternative positions

Chitonidae (Family) Rafinesque, 1815	Ref: P. Bouchet et al., 2001: 182.
Testacea (Order) Linnaeus, 1758	Ref: [von] Linné, C., 1767: 1106.

Historical positions

Ischnochitonina (Suborder) Bergenhayn, 1930	Ref: E.E. Ruppert et al., 2004: 298. [rough position]
Chitonidae (Family) Rafinesque, 1815	Ref: P. Bouchet et al., 2001: 182.
Chitoninae (Subfamily) Rafinesque, 1815	Ref: V.G. Millard, 1997: 12.
Neoloricata (Order) Bergenhayn, 1955	Ref: R.S. Boardman et al., 1987
Chitonidae (Family) Rafinesque, 1815	Ref: K.J. Boss, 1982: 959.
Polyplacophora (Order) Gray, 1821	Ref: E.R. Lankester, 1877: 448. [rough position]
Testacea (Order) Linnaeus, 1758	Ref: C. a Linné, 1767: 1073, 1106.
Testacea (Order) Linnaeus, 1758	Ref: C. Linnaeus, 1758: 645, 667. [new taxon]

Number of Subtaxa

2025	Available in Systema Naturae 2000	9s
1989-present	Systema Naturae 2000	[4s]
1758	C. Linnaeus	[4s]