Hyolithomorpha

Parent taxon: Hyolithomorpha according to J. J. Sepkoski 2002

Sister taxa: Calcitheca, Dilites, Eumorpholites, Nervolites, Ovalitheca, Parahyolithes, Sulcavitida

Subtaxa: Macrotheca, Toxeumorphoridae

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Ecology: stationary epifaunal suspension feeder