Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Mammalia - (Order) Rodentia

Included, by definition, in node-based clade

Castorimorpha (Clade)

Ref: M.A. O'Leary et al., 2013: table S4 (p. 102).

Subsequent positions

Castorimorpha (Infraorder) Wood, 1955		Ref: R.L. Carroll, 1988: 636.
Castorimorpha (Infraorder) Wood, 1955		Ref: M.C. McKenna & S.K. Bell, 1997: 129.

Original entries

Questionably †Castoroidinae (Subfamily) Allen, 1877
Questionably †Eocastoroides (Genus) Hibbard, 1937

Current position

Castoroidea (Superfamily) Batsch, 1788

Ref: I. Eibl-Eibesfeldt et al., 1974: 584.

Alternative positions

Castorimorpha (Infraorder) Wood, 1955	Ref: M.C. McKenna & S.K. Bell, 1997: 129. [new position]
Castorimorpha (Suborder) Wood, 1955	Ref: D.E. Wilson & D.M. Reeder, 2011: 58.
Castorimorphi (Infraorder)	Ref: C.J. Burgin et al., 2020: table 2 (p. 26).
Rodentia (Order) Bowdich, 1821	Ref: G.B. Corbet & J.E. Hill, 1991: 150.
Sciurognathi (Suborder) (Tullberg, 1899)	Ref: D.E. Wilson, 1993: 467.
Sciuromorpha (Suborder) Brandt, 1855	Ref: A.F. DeBlase, 1982: 1047.

Historical positions

Castorimorphi (Infraorder)	Ref: C.J. Burgin et al., 2020: table 2 (p. 26).
Castorimorpha (Suborder) Wood, 1955	Ref: D.E. Wilson & D.M. Reeder, 2011: 58.
Castorimorpha (Infraorder) Wood, 1955	Ref: M.C. McKenna & S.K. Bell, 1997: 129. [new position]
Sciurognathi (Suborder) (Tullberg, 1899)	Ref: D.E. Wilson, 1993: 467; 7.
Rodentia (Order) Bowdich, 1821	Ref: G.B. Corbet & J.E. Hill, 1991: 150.
Castorimorpha (Infraorder) Wood, 1955	Ref: R.L. Carroll, 1988: 636.
Sciuromorpha (Suborder) Brandt, 1855	Ref: A.F. DeBlase, 1982: 1047.
Sciuromorpha (Suborder) Brandt, 1855	Ref: T.I. Storer et al., 1979
Castoroidea (Superfamily) Batsch, 1788	Ref: I. Eibl-Eibesfeldt et al., 1974: 584.

Number of Subtaxa

2024	Available in Systema Naturae 2000	1g;2s;10ss; †24g;4s;4ss
1989-present	Systema Naturae 2000	[1g;2s; †24g]
2011	D.E. Wilson & D.M. Reeder: 58	1g;2s
1997	M.C. McKenna & S.K. Bell	[1g; †24g]
1993	D.E. Wilson	1g;2s
1991	G.B. Corbet & J.E. Hill	[1g];2s
1982	A.F. DeBlase	1g;2s