Taxon - Odkazy a literatura
Dominguéz Alonso P., Jefferies R. P. S., Gil Cid D. (2002): An annotated check-list of genera and species of carpoids, Coloquios de Palcontologia, 53: 33-68 [jako Iowacystis sagittaria Thomas & Ladd, 1926]Datum citace: 19. únor 2016