Citation (Article)
Schram, F.R., Vonk, R. & Hof, C.H.J. 1997. Mazon Creek Cycloidea. J. Paleont. 71 (2): 261-284. [Mar 1997] [Online]
Original Classification
Class Maxillopoda Dahl, 1956
New group
Genus †Apionicon new genus†Apionicon apioides new species†Cyclus obesus new species†Halicyne max new species