Family Cosmochthoniidae Grandjean 1947 (oribatid mite)
Arachnida - Acariformes - Cosmochthoniidae
Parent taxon: Prothoplophoroidea according to J. A. Dunlop et al. 2013
Sister taxon: Prothoplophoridae
Subtaxa: Carbochthonius
Ecology:
Distribution: found only at Fair Head, Ballycastle (Carboniferous of the United Kingdom)