Arachnida - Acariformes - Protacaridae

Synonyms: Palaeotydeus devonicus Dubinin 1962, Paraprotacarus hirsti Dubinin 1962, Protospeleorchestes pseudoprotacarus Dubinin 1962

Full reference: S. Hirst. 1923. On some arachnid remains from the Old Red Sandstone (Rhynie Chert Bed, Aberdeenshire). The Annals and Magazine of Natural History, Ninth Series 12:455-474

Belongs to Protacarus according to P. B. Klimov et al. 2025

See also Dubinin 1962 and Hirst 1923

Sister taxa: none

Type specimens:

• Protacarus crani: Its type locality is Rhynie cherts (BMNH collection), which is in a Pragian pond chert in the Dryden Flags Formation of the United Kingdom
• Palaeotydeus devonicus: Its type locality is Rhynie cherts (BMNH collection), which is in a Pragian pond chert in the Dryden Flags Formation of the United Kingdom.
• Paraprotacarus hirsti: Its type locality is Rhynie cherts (BMNH collection), which is in a Pragian pond chert in the Dryden Flags Formation of the United Kingdom.
• Protospeleorchestes pseudoprotacarus: Its type locality is Rhynie cherts (BMNH collection), which is in a Pragian pond chert in the Dryden Flags Formation of the United Kingdom.

Ecology:

Distribution: found only at Rhynie cherts (BMNH collection)

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Specimen images are retrieved through the ePANDDA API.