Concise hierarchy

(Kingdom) Animalia - (Phylum) Arthropoda - (Class) Arachnida

Original entries

†Mesoscorpionina (Suborder) (Stockwell, 1989)

Current position

Stomothecata ([unranked]) Shultz, 2007

Ref: J.W. Shultz, 2007: fig. 1.

Alternative positions

Arachnida (Subclass) Lamarck	Ref: R.C. Brusca & G.J. Brusca, 1990: 494.
Arachnida (Class) Lamarck, 1801	Ref: Z.-Q. Zhang, 2013: 18.
Arachnina (Subclass)	Ref: J. Hallan, 2003-present: 7 Mar 2005.
Dromopoda (Subclass) Shultz, 1990	Ref: D. Grimaldi & M.S. Engel, 2005: table 3.2.
Dromopoda ([unranked]) Shultz, 1990	Ref: D. Grimaldi & M.S. Engel, 2005: table 3.2. [implicit]
Novogenuata ([unranked]) Shultz, 1990	Ref: J.A. Coddington et al., 2004: fig. 18.1.
Scorpionida (Class) Latreille, 1810	Ref: S.A. Stockwell, 1996

Historical positions

Chelicerata (Subphylum) Heymons, 1901	Ref: S. Kulkarni et al., 2023: figs. 3, 4a. [rough position] [indirect]
Euchelicerata ([unranked]) Weygoldt & Paulus, 1979	Ref: J.A. Dunlop et al., 2023: 33.
Chelicerata (Subphylum) Heymons, 1901	Ref: J.A. Dunlop et al., 2020: 31.
Euchelicerata ([unranked]) Weygoldt & Paulus, 1979	Ref: C. Aria et al., 2020: fig. S4. [implicit]
N.N. (Superorder)	Ref: M.A. Ruggiero et al., 2015b: 37.
Arachnida (Class) Lamarck, 1801	Ref: Z.-Q. Zhang, 2013: 18.
Arachnida (Class) Lamarck, 1801	Ref: J.A. Dunlop et al., 2012: 29. [inferred rank]
Arachnida (Class) Lamarck, 1801	Ref: Z.-Q. Zhang, 2011: 99; Prendini, 2011: 115.
Arachnida (Class) Lamarck, 1801	Ref: E.J. van Nieukerken, 2010: 159.
Dromopoda (Subclass) Shultz, 1990	Ref: D. Grimaldi & M.S. Engel, 2005: 101-102, table 3.2.
Novogenuata ([unranked]) Shultz, 1990	Ref: J.A. Coddington et al., 2004: fig. 18.1.
Arachnina (Subclass)	Ref: J. Hallan, [2003]: 7 Mar 2005.
Scorpionida (Class) Latreille, 1810	Ref: S.A. Stockwell, 1996
Arachnida (Subclass) Lamarck	Ref: R.C. Brusca & G.J. Brusca, 1990: 494.
Arachnida (Class) Lamarck, 1801	Ref: O.F. Francke, 1982: 73.
Arachnida (Class) Lamarck, 1801	Ref: B. Grzimek, 1973-1975

Number of Subtaxa

2025	Available in Systema Naturae 2000	22f;218g;88s;24ss; ‡1f;1g; †43f;98g
1989-present	Systema Naturae 2000: 3 Aug 2024	[22f; ‡1f;1g; †43f;98g]
2023	J.A. Dunlop et al.: 33, 46	[22f];2729s; †[44f;97g];154s
2020	J.A. Dunlop et al.: 42	[; †43f;92g]
2019	O.F. Francke: 1	19f;220[219]g;23sg; †43[44]f;80[95]g
2013	Z.-Q. Zhang: 18	2,109*[1,988]s; †121s
2012	J.A. Dunlop et al.: 29, 39 (Prendini, 2011)	1947s; †120[119]s
2012	J.A. Dunlop et al.: 29, 39	1947s; †120[119]s
2011	Z.-Q. Zhang: 99	2,068*[1,947]s; †121s
2011	L. Prendini: 115 (incl. footnote 1)	2so;18f;151g;1947s; †47f;87g;121s
2010	E.J. van Nieukerken: 159	1764s
2010	E.J. van Nieukerken: 159	1764s
2005	M.E. Soleglad et al.: table 6 (p. 33)	[13f;160g]
2005	L. Prendini & W.C. Wheeler: table 10 (p. 482)	[18f;165g]
2003	M.E. Soleglad & V. Fet	[14f;164g]
[2003]	J. Hallan: 7 Mar 2005	165g;1454s; †86g;109s
1996	S.A. Stockwell	[13f;126g; †43g]
1990	R.C. Brusca & G.J. Brusca	~1200s
1982	O.F. Francke	8f115[111]g1200[1135]s