Traits taxon details
original description
Kadil'nikova, Y. I. & Moskvin, M. M. 1984. [Danian and Paleocene species of the sea urchins Studeria and Hypsopygaster]. Paleontologicheskii Zhurnal 1984, 37-46. page(s): 36; pl. 6: figs 5-6 [details]
basis of record
Kroh, A. 2010. Index of Living and Fossil Echinoids 1971-2008. Annalen des Naturhistorischen Museums in Wien, Serie A 112, 195-470., available online at http://verlag.nhm-wien.ac.at/pdfs/112A_195470_Kroh.pdf page(s): 324 [details]
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