Registered 23,234 species  (Collections:374,653; Observations:77,196; Other records:5,958)
Taxonomic treeOccurrence recordsDatasets and providers
Classification : Eukarya - Opisthokonta - Animalia - Echinodermata - Echinoidea - Euechinoidea - Irregularia - Atelostomata

Order Spatangoida   L. Agassiz, 1840     

Japan Oceanographic Data Center (2002) JODC taxonomic code of marine organisms (plankton). 2001 edition. In: Marine Organisms Data, accessed through 
Kroh, A. and A. B. Smith (2010) The phylogeny and classification of post-Palaeozoic echinoids. Journal of Systematic Palaeontology, 8(2), 147-212. 
Kroh, A.; Hansson, H. (2013) Spatangoida. In: Kroh, A. & Mooi, R. (2013) World Echinoidea Database. Accessed through: World Register of Marine Species at on 2013-07-16.