Traits taxon details
original description
Kier, P. M. 1982. Echinoids. Pp. 310-314 in Sprinkle, J. (ed.) Echinoderm Faunas from the Bromide Formation (Middle Ordovician) of Oklahoma. University of Kansas Paleontological Contributions, Monograph 1, 310-314. page(s): 311-314; figs. 74A-B, pl. 41: figs 1-2 [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): 204 [details]
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