†subfamily Quadrahomagnostinae Peng 1992 (artiopod)
Parent taxon: Agnostida according to A. I. Varlamov et al. 2006
Sister taxa: Agnostina, Ceragnostus, Eodiscina, Formagnostus, Glyptagnostidae, Lavsanodiscus, Pleurinodus, Sphaeragnostidae
Subtaxa: none
Ecology: slow-moving epifaunal detritivore
Distribution: there are no occurrences of Quadrahomagnostinae in the database