Concise hierarchy

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

Current position

Haplocnemata ([unranked]) Börner, 1904

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

Alternative positions

Arachnida (Class) Lamarck, 1801

Ref: Z.-Q. Zhang, 2013: 18.

Historical positions

Euchelicerata ([unranked]) Weygoldt & Paulus, 1979	Ref: J.A. Dunlop et al., 2023: 58.
Chelicerata (Subphylum) Heymons, 1901	Ref: J.A. Dunlop et al., 2020: 53.
Euchelicerata ([unranked]) Weygoldt & Paulus, 1979	Ref: C. Aria et al., 2020: fig. S4. [implicit]
N.N. (Superorder)	Ref: M.A. Ruggiero et al., 2015b: 36.
Arachnida (Class) Lamarck, 1801	Ref: Z.-Q. Zhang, 2013: 18.
Arachnida (Class) Lamarck, 1801	Ref: J.A. Dunlop et al., 2012: 49. [inferred rank]
Arachnida (Class) Lamarck, 1801	Ref: Z.-Q. Zhang, 2011: 99; Harvey, 2011: 119.
Arachnida (Class) Lamarck, 1801	Ref: E.J. van Nieukerken, 2010: 159.
Haplocnemata ([unranked]) Börner, 1904	Ref: J.A. Coddington et al., 2004: fig. 18.1.
Arachnida (Class) Lamarck, 1801	Ref: R.C. van Caenegem et al., 1979-1984
Arachnida (Class) Lamarck, 1801	Ref: B. Grzimek, 1973-1975

Number of Subtaxa

2026	Available in Systema Naturae 2000	25f;475g;53s;2ss; †1f;20g;1s
1989-present	Systema Naturae 2000: 22 Oct 2024	[25f;475g; †1f;20g]
2023	J.A. Dunlop et al.: 58, 63	[26f];4081s; †[1f;17g];57s
2022-present	WSCA: [22 Oct 2024]	25f;474g;4,269s; †1f;20g;60s
2020	J.A. Dunlop et al.: 58 (Benavides et al., 2019)	[26f];~3,700s[; †1f;13g]
2019	L.R. Benavides et al.:	[25f; †1f]
2013	Z.-Q. Zhang: 18	3,574*[3,533]s; †41s
2012	J.A. Dunlop et al.: 49, 53 (Harvey, 2011)	3454s; †43[40]s
2012	J.A. Dunlop et al.: 49, 53	3454s; †43[40]s
2011	Z.-Q. Zhang: 99	3,494*[3,454]s; †40s
2011	M. Harvey: 119 (incl. footnote 1)	2so;26f;446g;3,454s; †1f;11g;40s
2009	M.S. Harvey: 19 Jan 2009	[25f;440g; †1f;9g]