Concise hierarchy

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

Original position

Questionably Delphinoidea (Superfamily) Gray, 1821

Original entries

Questionably †Brachydelphis (Genus) de Muizon, 1988
Questionably †Parapontoporiinae (Subfamily) Barnes, 1984
Questionably †Piscorhynchus (Genus) Pilleri & Siber, 1989

Subsequent entries

Pontoporiinae (Subfamily) Gray, 1870

Current position

Inioidea (Superfamily) de Muizon, 1988

Ref: C.J. Burgin et al., 2020: table 2 (p. 27).

Alternative positions

Cetacea (Order) Brisson, 1762	Ref: [Anonymous], 1995
Delphinoidea (Superfamily) Gray, 1821	Ref: M.C. McKenna & S.K. Bell, 1997: 386.
Odontoceti (Suborder) Flower, 1867	Ref: D.E. Wilson & D.M. Reeder, 2011: 60.
Platanistoidea (Superfamily) Gray, 1846

Historical positions

Inioidea (Superfamily) de Muizon, 1988	Ref: C.J. Burgin et al., 2020: table 2 (p. 27).
Inioidea (Superfamily) de Muizon, 1988	Ref: F.G. Marx et al., 2016: fig. 4.37.
Odontoceti (Suborder) Flower, 1867	Ref: D.E. Wilson & D.M. Reeder, 2011: 60.
Delphinoidea (Superfamily) Gray, 1821	Ref: M.C. McKenna & S.K. Bell, 1997: 386.
Cetacea (Order) Brisson, 1762	Ref: 1995
Odontoceti (Suborder) Flower, 1867	Ref: R.L. Carroll, 1988: 643.

Number of Subtaxa

2024	Available in Systema Naturae 2000	1g;1s; †7g;2s
1989-present	Systema Naturae 2000: 16 Jul 2022	[1g;1s; †7g]
2016	F.G. Marx et al.: 133	[1g]; †6g
2011	D.E. Wilson & D.M. Reeder: 60	1g;1s
1997	M.C. McKenna & S.K. Bell	[1g; †5g]