Order Cassiduloida Agassiz and Desor 1847 (sea urchin)

Echinoidea - Cassiduloida

Full reference: L. Agassiz and P. J. E. Desor. 1847. Catalogue raisonné des familles, des genres, et des espèces de la classe des échinodermes. Annales des Sciences Naturelles, Troisième Série, Zoologie 7-8

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

See also Berndt 2003, Donovan 1993, Larrain and Biró-Bagóczky 1985, Manso and Andrade 2008, Sepkoski 2002, Smith 1991 and Smith 1995

Sister taxa: Apatopygidae, Archiaciidae, Bothryopneustes, Clypeasteroida, Clypeidae, Clypeolampadidae, Echinolampadoida, Nucleolitidae, Pygaulidae

Subtaxa: Astrolampas Astropygaulus Bothryopneutes Calilampus Cassidulina Centropygus Clarkiella Claviaster Clypeanthus Conoclypeus Echinanthus Eogaleropygus Harduinia Laticlypus Lovenilampas Neolampadina Ovulechinus Platypygus Procassidulus Pygurostoma Stegopygus

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Ecology: slow-moving semi-infaunal detritivore

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