ammonites
Adaecyathus Zhuravlev et al. 1983 (sponge)

Archaeocyatha

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

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Ecology: stationary intermediate-level epifaunal suspension feeder