CLARK, W.B. (1895)
Contributions to the Eocene fauna of the middle Atlantic slope. Johns Hopkins University Circulars, 15 (121): 3–6
CLARK, W.B. (1896)
The Eocene deposits of the Middle Atlantic slope in Delaware, Maryland, and Virginia. Bulletin of the United States Geological Survey, 141: 1–167, pl. 1–8.
EASTMAN, C.R. (1901)
Pisces (of Eocene of Maryland). Maryland Geological Survey, 1: 98–115, pl. 12–15
HAY, O.P. (1902)
Bibliography and catalogue of the fossil Vertebrata of North America. Bulletin of the United States Geological and Geographical Survey of the Territories, 179: 1–868
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