Echinoidea

Parent taxon: Echinoidea according to E. A. Frederickson 1962

Sister taxa: Acrosalenioida, Archaeocidaridae, Bromidechinus, Cassiduloidea, Cidarites, Cidaroidea, Diplocidaroida, Disasteroida, Dysaster, Echinoida, Euechinoidea, Gnathostomata, Hemicidaroidea, Oligopygoida, Parechinus, Perischoechinoidea, Radiolus, Regularia, Temnopleuroida

Subtaxa: Echinocrinus dininnii, Echinocrinus trudifer

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Ecology: epifaunal grazer-deposit feeder