WoRMS name details
original description
M'Clelland, J. (1840). On Cyrtoma, a new genus of Fossil Echinida. <em>The Calcutta Journal of Natural History.</em> 1: 155-187., available online at https://www.biodiversitylibrary.org/page/37123727 page(s): 181; pl. 4: figs 6-7 [details]
basis of record
Mortensen, T. (1948). A Monograph of the Echinoidea. IV, 1 Holectypoida, Cassiduloida. 371 pp., C. A. Reitzel, Copenhagen. page(s): 275-281 [details]
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