Concise hierarchy

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

Subsequent positions

Sirenia (Infraorder) Gill, 1872

Ref: M.C. McKenna & S.K. Bell, 1997: 496.

Original entries

Questionably †Potamosiren (Genus) Reinhart, 1951
Questionably †Ribodon (Genus) Ameghino, 1883

Subsequent entries

Trichechus (Genus) Linnaeus, 1758

Current position

Sirenia (Order) Gill, 1872

Ref: C.J. Burgin et al., 2020: table 2 (p. 26).

Alternative positions

Sirenia (Infraorder) Gill, 1872

Ref: M.C. McKenna & S.K. Bell, 1997: 496. [new position]

Historical positions

Sirenia (Order) Gill, 1872	Ref: C.J. Burgin et al., 2020: table 2 (p. 26).
Sirenia (Order) Gill, 1872	Ref: D.E. Wilson & D.M. Reeder, 2011: 57.
Sirenia (Order) Gill, 1872	Ref: J. Shoshani, 2005: 93.
Sirenia (Infraorder) Gill, 1872	Ref: M.C. McKenna & S.K. Bell, 1997: 496. [new position]
Sirenia (Order) Gill, 1872	Ref: D.E. Wilson, 1993: 365; 6.
Sirenia (Order) Gill, 1872	Ref: G.B. Corbet & J.E. Hill, 1991: 123.
Sirenia (Order) Gill, 1872	Ref: A.F. DeBlase, 1982: 1056.
Sirenia (Order) Gill, 1872	Ref: B. Grzimek, 1973-1975

Number of Subtaxa

2024	Available in Systema Naturae 2000	1g;3s; †2g
1989-present	Systema Naturae 2000	1g;3s; †2g
2011	D.E. Wilson & D.M. Reeder: 57	1g;3s
2005	J. Shoshani	[1g;3s]
1997	M.C. McKenna & S.K. Bell	[1g; †2g]
1993	D.E. Wilson	1g;3s
1991	G.B. Corbet & J.E. Hill	[1g];3s
1982	A.F. DeBlase	1g;3s