Concise hierarchy

(Kingdom) Animalia - (Phylum) Arthropoda

Current position

Sclerophorata ([unranked]) Kamenz, Staude & Dunlop, 2011

Ref: J.C. Lamsdell, 2013: 20. [inferred rank]

Alternative positions

Arthropoda (Phylum) Siebold, 1848	Ref: J.J. Sepkoski Jr., 2002: 169.
Chelicerata ([unranked]) Heymons, 1901	Ref: E.J. van Nieukerken, 2010: 158.
Chelicerata (Subphylum) Heymons, 1901	Ref: M.A. Ruggiero et al., 2015b: 36.
Chelicerata (Superclass) Heymons, 1901	Ref: R.S. Boardman et al., 1987
Condylopoda ([unranked])	Ref: E.R. Lankester, 1877: 447.
Euchelicerata (Epiclass) Weygoldt & Paulus, 1979	Ref: D. Grimaldi & M.S. Engel, 2005: table 3.2.

Historical positions

Chelicerata (Subphylum) Heymons, 1901	Ref: M.A. Ruggiero et al., 2015b: 36.
Chelicerata (Subphylum) Heymons, 1901	Ref: Z.-Q. Zhang, 2013: 18.
Sclerophorata ([unranked]) Kamenz, Staude & Dunlop, 2011	Ref: J.C. Lamsdell, 2013: 20, 21, fig. 8.
Euchelicerata ([unranked]) Weygoldt & Paulus, 1979	Ref: J.A. Dunlop et al., 2012: 116. [inferred rank]
Chelicerata (Subphylum) Heymons, 1901	Ref: Z.-Q. Zhang, 2011: 99.
Chelicerata ([unranked]) Heymons, 1901	Ref: E.J. van Nieukerken, 2010: 159; 158.
Euchelicerata (Epiclass) Weygoldt & Paulus, 1979	Ref: D. Grimaldi & M.S. Engel, 2005: 101, table 3.2.
Arthropoda (Phylum) Siebold, 1848	Ref: J.A. Coddington et al., 2004: table 18.2, fig. 18.1.
Arthropoda (Phylum) Siebold, 1848	Ref: J.J. Sepkoski Jr., 2002: 169.
Chelicerata (Subphylum) Heymons, 1901	Ref: 1995
Chelicerata (Subphylum) Heymons, 1901	Ref: C. Nielsen, 1995
Chelicerata (Superclass) Heymons, 1901	Ref: R.S. Boardman et al., 1987
Chelicerata (Subphylum) Heymons, 1901	Ref: R.C. van Caenegem et al., 1979-1984
Chelicerata (Subphylum) Heymons, 1901	Ref: H.W. Levi, 1982: 72-73.
Chelicerata (Subphylum) Heymons, 1901	Ref: L. Margulis & K.V. Schwartz, 1982: 226.
Chelicerata (Subphylum) Heymons, 1901	Ref: T.I. Storer et al., 1979: 324, 536.
Chelicerata (Subphylum) Heymons, 1901	Ref: B. Grzimek, 1973-1975
Arthropoda (Phylum) Siebold, 1848	Ref: P. Smart, 1989 (1975): 15. [out of scope (coherent)]
Condylopoda ([unranked])	Ref: E.R. Lankester, 1877: 447.

Number of Subtaxa

2024	Available in Systema Naturae 2000	16o;755f;10,010g;24,542s;762ss;1v; ‡1f;2g; †4o;75f;267g;13s
1989-present	Systema Naturae 2000	[17o;741f; †3o]
2015b	M.A. Ruggiero et al.: 37	[16o]
2013	Z.-Q. Zhang: 19	[11o];114,275*[112,442]s; †[4o];1,833s
2011	Z.-Q. Zhang: 99	112,201*[110,615]s; †1,586s
2005	D. Grimaldi & M.S. Engel: 101	[11o];>80,000s; †[3o]
2005	D. Grimaldi & M.S. Engel: 101	[11o];>80,000s; †[3o]
2003	M.S. Harvey: ix	13o
[2003]	J. Hallan	[17o];11,488g;51,326s; †[3o];334g;627s
2003	M.S. Harvey: ix	13o
2000		18s
1987	R.S. Boardman et al.	11o; †5o289g
1979-1984	R.C. van Caenegem et al.	10o
1982	H.W. Levi	11[13]o
1877	E.R. Lankester: 447	[12o]