†family Tercyathidae Vologdin 1939 (archaeocyath sponge)
Archaeocyatha - Ajacicyathida - Tercyathidae
Parent taxon: Tercyathoidea according to F. Debrenne et al. 2015
Sister taxa: Botomocyathidae, Olgaecyathidae, Piamaecyathellidae
Subtaxa: Clathricyathellus Clathricyathus Tercyathellus Tercyathus
Type: Tercyathus
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Cambrian of the Russian Federation (17 collections)
Total: 17 collections including 40 occurrences