Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Chondrichthyes

Current position

†Ctenacanthimorpha (Superorder)

Ref: R. van der Laan, 2018: 36.

Alternative positions

Elasmobranchii (Subclass) Bonaparte, 1838	Ref: V. Hairapetian & M. Ginter, 2009: 186.
Euselachii (Infraclass) Hay, 1902	Ref: J.S. Nelson, 2006: 52.
Euselachii (Superorder) Hay, 1902	Ref: R.L. Carroll, 1988: 598.
Euselachii (Cohort) Hay, 1902	Ref: R.L. Carroll, 1988 [implicit]

Historical positions

†Ctenacanthimorpha (Superorder)	Ref: R. van der Laan, 2018: 36.
†Ctenacanthimorpha (Superorder)	Ref: J.S. Nelson et al., 2016: 46.
Euselachii (Infraclass) Hay, 1902	Ref: J.S. Nelson, 2006: 52.
Euselachii (Infraclass) Hay, 1902	Ref: M.J. Benton, 2005: 390, box 7.2.
Elasmobranchii (Subclass) Bonaparte, 1838	Ref: 1998
Elasmobranchii (Subclass) Bonaparte, 1838	Ref: 1995
Euselachii (Superorder) Hay, 1902	Ref: R.L. Carroll, 1988: 598.

Number of Subtaxa

2025	Available in Systema Naturae 2000	†2f;8g
1989-present	Systema Naturae 2000: 25 Apr 2024	[; †2f]
2018	R. van der Laan: 36	[; †2f]
2016	J.S. Nelson et al.: 47	[; †1f]
1988	R.L. Carroll: 598	[; †5f]