Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Echinoidea
Subclassis: Euechinoidea
Superordo: Atelostomata
Ordines: Cassiduloida - Spatangoida
Unplaced genera (1): Absurdaster
References
Baker, A.N.; Rowe, F.W.E. 1990: Atelostomatid sea urchins from Australian and New Zealand waters (Echinoidea : Cassiduloida, Holasteroida, Spatangoida, Neoplampadoida). Invertebrate taxonomy, 4(2): 281–316. DOI: 10.1071/IT9900281
Kroh, A.; Lukeneder, A.; Gallemí, J. 2014: Absurdaster, a new genus of basal atelostomate from the Early Cretaceous of Europe and its phylogenetic position. Cretaceous research, 48: 235–249. DOI: 10.1016/j.cretres.2013.11.013 ZooBank
Vernacular names
English: Atelostomata
français: Atelostomata
magyar: Atelostomata
The Atelostomata are a superorder of sea urchins. They are distinguished from other sea urchins by their irregular shape and the absence of a feeding lantern. The group includes the well known heart urchins, as well as some less familiar and extinct forms.
List of orders
order Holasteroida (Durham & Melville, 1957)
order Spatangoida (L. Agassiz, 1840)
References
Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 981. ISBN 0-03-056747-5.
Kroh A, Mooi R (eds.). "Atelostomata". World Echinoidea Database. World Register of Marine Species.
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