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Monotypic taxon:
Superorder
Opilioacariformes
(arachnid)
Taxa
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Entity:
Acari (Subclass) - mites and ticks
..Acariformes (Superorder) - mitelike mites
..Parasitiformes (Superorder) - ticks and ticklike mites
..Siro (Genus)
..Stygophalangiidae (Family)
..Opilioacariformes (Superorder)
....Opilioacarida (Order)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Arthropoda
-
(Class)
Arachnida
Current position
Acari
(Subclass)
Leach, 1817
Ref:
J.A. Coddington et al., 2004
: table 18.2; [CoL(22 Oct 2024)].
Alternative positions
Arachnida
(Class)
Lamarck, 1801
Ref:
Species 2000, 2001-present
: 22 Oct 2024; CoL(22 Oct 2024).
Historical positions
Acari
(Subclass)
Leach, 1817
Ref:
J.A. Coddington et al., 2004
: table 18.2, figs. 18.1, 18.2.
Number of Subtaxa
2026
Available in Systema Naturae 2000
1o;1f;13g;21s
1989-present
Systema Naturae 2000
: 25 Oct 2024
[1o;1f;13g; †0g]
2004
J.A. Coddington et al.
: table 18.2; 300
[1o;1f;9g;~20s; †0s]
2004
J.A. Coddington et al.
: table 18.2; 300
[1o;1f;9g;~20s; †0s]
©2004-2025 Universal Taxonomic Services
Last updated:
21 Sep 2025