Concise hierarchy

(Kingdom) Animalia - (Phylum) Annelida - (Class) Polychaeta - (Order) Scolecida

Subsequent positions

Capitellida (Order) Fauchald, 1977

Ref: 1977 [assumed]

Current position

Scolecida (Order) Rouse & Fauchald, 1997

Ref: G.W. Rouse, 2001: 42. [implicit]

Alternative positions

Capitellida (Order) Fauchald, 1977	Ref: G. Hartmann-Schröder, 1996: 435.
Scolecida ([unranked]) G.W. Rouse & K. Fauchald, 1997	Ref: G.W. Rouse, 2001: 42.

Historical positions

Scolecida ([unranked]) G.W. Rouse & K. Fauchald, 1997	Ref: G.W. Rouse, 2001: 42-45; ix, table 1.1, fig. 2.2.
Polychaeta (Class) Grube, 1850	Ref: G. Bellan, 2001: 216.
Scolecida ([unranked]) G.W. Rouse & K. Fauchald, 1997	Ref: G.W. Rouse & K. Fauchald, 1997: 163, 204.
Polychaeta (Class) Grube, 1850	Ref: G.B. Read, 1996
Capitellida (Order) Fauchald, 1977	Ref: G. Hartmann-Schröder, 1996: 435.
Polychaeta ([unranked])	Ref: C. Nielsen, 1995
Capitellida (Order) Fauchald, 1977	Ref: M.H. Pettibone, 1982: 31-32.
Drilomorpha (Suborder)	Ref: B. Grzimek, 1973-1975

Number of Subtaxa

2025	Available in Systema Naturae 2000	30g;42s;4ss
1989-present	Systema Naturae 2000	>40g;150s; †0s
2001	G.W. Rouse: 45	>40g;150s; †0s
1982	M.H. Pettibone	37g140s