†Adaecyathus Zhuravlev et al. 1983 (sponge)
Full reference: A. Y.u. Zhuravlev, I. T. Zhuravleva, and V. D. Fonin. 1983. Lower Cambrian archaeocyathids from Siberia. Paleontological Journal 17(2):20-31
Parent taxon: Archaeocyatha according to A. Yu. Zhuravlev et al. 1983
Sister taxa: Cryptaporocyathus, Irregulares, Ramuscyathus, Regulares
Subtaxa: Adaecyathus solidus
Ecology: stationary intermediate-level epifaunal suspension feeder