Concise hierarchy

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

Subsequent positions

Geomorpha (Infraorder) Thaler, 1966		Ref: M.C. McKenna & S.K. Bell, 1997: 181.
Ischyromyiformes (Clade) Marivaux, Vianey-Liaud & Jaeger 2004		Ref: L. Marivaux et al., 2004 [assumed]

Original entries

Questionably †Florentiamyidae (Family) Wood, 1936
Questionably †Floresomys (Genus) Fries, Hibbard & Dunkle, 1955
Questionably †Jimomys (Genus) Wahlert, 1976
Questionably †Texomys (Genus) Slaughter, 1981

Subsequent entries

Geomyidae (Family) Bonaparte, 1845
†Heliscomys (Genus) Cope, 1873
Heteromyidae (Family) Gray, 1868

Current position

Castorimorphi (Infraorder)

Ref: D'Elía et al., 2019: fig. 3 [inferred name]

Alternative positions

Geomorpha (Infraorder) Thaler, 1966	Ref: M.C. McKenna & S.K. Bell, 1997: 181. [new position]
Ischyromyiformes (Clade) Marivaux, Vianey-Liaud & Jaeger 2004	Ref: L. Marivaux et al., 2004: abstract. [new position]
Myomorpha (Infraorder) Brandt, 1855	Ref: R.L. Carroll, 1988: 636.
Sciuromorpha (Suborder) Brandt, 1855	Ref: R.C. van Caenegem et al., 1979-1984: 1981.

Historical positions

Ischyromyiformes (Clade) Marivaux, Vianey-Liaud & Jaeger 2004	Ref: L. Marivaux et al., 2004: abstract. [new position]
Geomorpha (Infraorder) Thaler, 1966	Ref: M.C. McKenna & S.K. Bell, 1997: 181. [new position]
Myomorpha (Infraorder) Brandt, 1855	Ref: R.L. Carroll, 1988: 636.
Sciuromorpha (Suborder) Brandt, 1855	Ref: I. Eibl-Eibesfeldt et al., 1974: 583.

Number of Subtaxa

2024	Available in Systema Naturae 2000	2f;17g;153s;37ss; †2f;84g;22s
1989-present	Systema Naturae 2000: 9 Jun 2022	[2f;17g;153s; †2f;84g]
1997	M.C. McKenna & S.K. Bell: 185	[1f;11g; †1f;35g]
1988	R.L. Carroll: 636	[2f; †2f]