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.
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Kier, P. M.
1982
Echinoderm Faunas from the Bromide Formation (Middle Ordovician) of Oklahoma
University of Kansas Paleontological Contributions