Opilioacariformes Temporal range: Eocene–Recent |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Chelicerata |
Class: | Arachnida |
Subclass: | Acari |
Order: | Opilioacariformes Johnston, 1968 |
Family: | Opilioacaridae With, 1902 |
Synonyms [1] | |
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Opilioacariformes is the smallest order (or superorder[2]) of mites, containing a single family, and around 10 genera.[3] They are rare, large mites, and are widely considered primitive, as they retain six pairs of eyes, and abdominal segmentation.[4] Opilioacariformes may be the sister group to the Parasitiformes.[5]
The first member of the Opilioacariformes to be discovered was the Algerian species Opilioacarus segmentatus, which was described by Carl Johannes With in 1902, followed by the Sicilian Eucarus italicus and Eucarus arabicus from Aden, both in 1904.[3] A single fossil specimen is known, which was discovered in Baltic amber from the Eocene.[6]
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