original description
M'Coy, F. (1849). On some new Paleozoic Echinodermata. <em>The Annals and Magazine of Natural History, Series 2.</em> 3: 244-254., available online at https://biodiversitylibrary.org/page/16085535
page(s): 251; note: first mentioned under the name Perischoechinida [details]
taxonomy source
Kroh, A. (2020). Phylogeny and classification of echinoids. <em>Developments in Aquaculture and Fisheries Science.</em> 1-17., available online at https://doi.org/10.1016/b978-0-12-819570-3.00001-9
page(s): 2 [details] Available for editors
additional source
Durham, J. W. & Melville, R. V. 1957. A classification of echinoids. Journal of Paleontology 31, 242-272.
page(s): 249; note: Emendation (re-diagnosis of genus) [details]
From editor or global species database
Status paraphyletic stem group [details]