Traits taxon details
basis of record
Poretskaya, E. S. & Lobatscheva, S. V. 1988. [Section Echinodermata. Class Echinoidea]. Pp. 165-173 in Krimholz, G. J. (ed.) [Berriasian of Mangyshlak]. Akademiya Nauk SSSR, Mezhvedomstvennyi Stratigraficheskii Komitet SSSR, Trudy 17, 165-173. page(s): 172 [details]
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