†family Sajanocyathidae Vologdin 1956 (archaeocyath sponge)
Archaeocyatha - Ajacicyathida - Sajanocyathidae
Parent taxon: Bronchocyathoidea according to F. Debrenne et al. 2015
Sister taxa: Ajacicyathidae, Bipallicyathidae, Bronchocyathidae, Densocyathidae, Ethmocyathidae
Subtaxa: Chakassicyathus Emucyathus Formosocyathus Irinaecyathus Kiwicyathus Palmericyathus Sajanocyathus Siderocyathus Zonacyathus
Type: Sajanocyathus
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Cambrian of Antarctica (3 collections), Australia (1), Canada (6: British Columbia, Northwest Territories, Yukon), Italy (2), Kyrgyzstan (1), Mexico (2), Mongolia (5), the Russian Federation (65), United States (5: Nevada)
Total: 90 collections including 159 occurrences