LEIDY, J. (1855)
Indications of twelve species of fossil fishes. Proceedings of the Academy of Natural Sciences of Philadelphia, 7: 395–397
HOVESTADT, D.C. & HOVESTADT-EULER, M. (2013)
Generic Assessment and Reallocation of Cenozoic Myliobatinae based on new information of tooth, tooth plate and caudal spine morphology of extant taxa. Palaeontos, 24, 1–66, 3 text–figs, 51 Plates