Echinoidea - Irregularia

PaleoDB taxon number: 113595

Full reference: A. B. Smith. 1984. Echinoid Palaeobiology. Allen & Unwin, London 1-190

Parent taxon: Irregularia according to A. Kroh and A. B. Smith 2010

Sister taxa: Atelostomata, Echinoneoida, Holectypoida, Pygasteridae

Subtaxa: Desorellidae, Galeropygidae, Hyboclypus, Neognathostomata, Pygorhytis

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Ecology: epifaunal grazer-deposit feeder