Arachnida - Phalangiotarbida - Heterotarbidae

Full reference: A. I. Petrunkevitch. 1913. A monograph of the terrestrial Palaeozoic Arachnida of North America. Transactions of the Connecticut Acadamy of Arts and Sciences 18:1-137

Parent taxon: Phalangiotarbida according to J. A. Dunlop et al. 2013

See also Petrunkevitch 1945

Sister taxa: Anthracotarbidae, Architarbidae, Devonotarbidae, Eotarbus, Eotarbus litoralis, Opiliotarbidae, Protopilio depressus

Subtaxa: Heterotarbus

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Ecology:

Distribution: found only at Mazon Creek (Daniels collection) (Carboniferous of Illinois)

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