Diagnosis | Regular echinoids with:
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Range | Lower Permian to Recent; worldwide. |
Type | Type genus Cidaris Leske, 1778, p. 74, |
Remarks | There is currently only a single order in the subclass Cidaroidea. See Cidaroidea for key. The following taxon is spine-based and probably belongs here: Minicidaris Deraniyagala, 1961 Claus, C. F. W. 1880. Grundzuge der Zoologie. N. G. Elwertsche, Marburg & Leipzig. 1254 pp (4th edition). |