Concise hierarchy

(Kingdom) Animalia - (Phylum) Arthropoda

Subsequent positions

Prosomapoda ([unranked]) Lamsdell, 2013

Ref: J.C. Lamsdell, 2013: 19.

Current position

Prosomapoda ([unranked]) Lamsdell, 2013

Ref: J.C. Lamsdell, 2013: 19. [new position]

Alternative positions

Chelicerata (Superclass) Heymons, 1901	Ref: [Anonymous], 2007: 4 Oct 2007.
Chelicerata ([unranked]) Heymons, 1901	Ref: E.J. van Nieukerken, 2010: 158.
Chelicerata (Subphylum) Heymons, 1901	Ref: Z.-Q. Zhang, 2013: 18.
Euchelicerata (Epiclass) Weygoldt & Paulus, 1979	Ref: D. Grimaldi & M.S. Engel, 2005: table 3.2.

Historical positions

Prosomapoda ([unranked]) Lamsdell, 2013	Ref: J.A. Dunlop et al., 2023: 9.
Prosomapoda ([unranked]) Lamsdell, 2013	Ref: J.A. Dunlop et al., 2020: 9.
Chelicerata (Subphylum) Heymons, 1901	Ref: Z.-Q. Zhang, 2013: 18.
Prosomapoda ([unranked]) Lamsdell, 2013	Ref: J.C. Lamsdell, 2013: 19, 20. [new position]
Euchelicerata ([unranked]) Weygoldt & Paulus, 1979	Ref: J.A. Dunlop et al., 2012: 8. [inferred rank]
Chelicerata (Subphylum) Heymons, 1901	Ref: Z.-Q. Zhang, 2011: 99.
Chelicerata ([unranked]) Heymons, 1901	Ref: E.J. van Nieukerken, 2010: 158.
Euchelicerata (Epiclass) Weygoldt & Paulus, 1979	Ref: D. Grimaldi & M.S. Engel, 2005: 100, table 3.2.
Arthropoda (Phylum) Siebold, 1848	Ref: J.A. Coddington et al., 2004: fig. 18.1. [inferred rank]

Number of Subtaxa

2025	Available in Systema Naturae 2000	1o;1f;3g;4s; †5f;49g
1989-present	Systema Naturae 2000: 30 Jul 2024	[1o;1f;3g;4s; †5f;49g]
2023	J.A. Dunlop et al.: 8, 16	[1o;1f;2g];84*s;4s[; †5f;49g;80s]
2013	Z.-Q. Zhang: 18	†103s
2012	J.A. Dunlop et al.: 8, 14	4s; †99s
2012	J.A. Dunlop et al.: 8, 14	4s; †99s
2011	Z.-Q. Zhang: 99	†98s