†family Naimarkcyathidae Wrona and Zhuravlev 1996 (archaeocyath sponge)
Archaeocyatha - Archaeocyathida - Naimarkcyathidae
Parent taxon: Naimarkcyathoidea according to F. Debrenne et al. 2015
Sister taxa: none
Subtaxa: Naimarkcyathus
Type: Naimarkcyathus
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution: found only at Glacial erratics on King George Is., reef facies (probably from Argentina Range) (Cambrian of Antarctica)