Echinoidea - Euechinoidea

Full reference: R. T. Jackson. 1912. Phylogeny of the Echini, with a revision of Palaeozoic species. Memoirs of the Boston Society of Natural History 7:1-491

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

Sister taxa: Arbacioida, Besairecidaris, Bramus, Crinocidaris, Glyphopneustidae, Orthopsida, Plesiocidaroida, Stomopneustoida

Subtaxa: Echinidea, Odontophora, Parasaleniidae, Temnopleuridea

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Ecology: epifaunal grazer-deposit feeder