Echinoidea taxon details
original description
(of Cassidulus (Cassidulus) trojanus Cooke, 1942 †) Cooke, C. W. 1942. Cenozoic irregular echinoids of the Eastern United States. Journal of Paleontology 16, 1-62. page(s): 32; pl. 2: figs. 22-25 [details]
new combination reference
Carter, B.D. & Beisel, T.H. (1987). "Cassidulus trojanus" belongs in the genus Eurhodia (Echinoidea) based upon new criteria. <em>Journal of Palaeontology.</em> 61: 1081-1083. [details]
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