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Odkazy a literatura
[1] C. D. Sumrall, J. Sprinkle, S. Pruss, S. Finnegan (2009): Cardiocystella , A New Cornute Stylophoran from the Upper Cambrian Whipple Cave Formation, Eastern Nevada, USA, Journal of Paleontology, 83(2):307-312 [jako Cardiocystella prolixora Sumrall, Sprinkle, Pruss & Finnegan, 2009]
C. D. Sumrall, J. Sprinkle, S. Pruss, S. Finnegan (2009): Cardiocystella , A New Cornute Stylophoran from the Upper Cambrian Whipple Cave Formation, Eastern Nevada, USA, Journal of Paleontology, 83(2):307-312 [jako Cardiocystella prolixora Sumrall, Sprinkle, Pruss & Finnegan, 2009]