Thorson, T.B. & Brooks, D.R. & Mayes, M.A. (1983)
The evolution of freshwater adaptation in stingrays. National Geographic Society Research Reports, 15: 663–694

Brooks, D.R. & Thorson, T.B. & Mayes, M.A. (1981)
Freshwater stingrays (Potamotrygonidae) and their helminth parasites: testing hypotheses of evolution and coevolution. In V.A. Funk and D.R. Brooks(editors), Advances in cladistics, proceedings of the first meeting of the Willi Hennig Society: 147–175. New York: New York Botanical Society. Buchheim, H.P. 1994. Paleoenvironments, lithofacies and ''varves'' of the Fossil Butte Member of the Green River Formation, southwestern Wyoming. Contributions to Geology 30(1): 3– 14.

Brooks, D.R. & Mayes, M.A. & Thorson, T.B. (1981)
Systematic review of cestodes infecting freshwater stingrays (Chondrichthyes: Potamotrygonidae) including four new species from Venezuela. Proceedings of the Helminthological Society of Washington, 48, 43–64

Mayes, M.A. & Brooks, D.R. & Thorson, T.B. (1981)
Two new tetraphyllidean cestodes from Potamotrygon circularis Garman (Chondrichthyes: Potamotrygonidae) in the Itacuaí River, Brazil. Proceedings of the Helminthological Society of Washington, 48(1), 38–42

Brooks, D.R. & Mayes, M.A. & Thorson, T.B. (1981)
Cestode parasites in Myliobatis goodei Garman (Myliobatiformes: Myliobatidae) from Río de la Plata, Uruguay, with a summary of cestodes collected from South American elasmobranchs during 1975-1979. Proceedings of the Biological Society of Washington, 93, 1239–1252

Mayes, M.A. & Brooks, D.R. (1981)
Cestode parasites of some Venezuelan stingrays. Proceedings of the Biological Society of Washington, 93(4), 1230–1238

Mayes, M.A. & Brooks, D.R. & Thorson, T.B. (1981)
Potamotrygonocotyle tsalickisi, new genus and species (Monogenea: Monocotylidae) and Paraheteronchocotyle amazonensis, new genus and species (Monogenea: Hexabothriidae) from Potamotrygon circularis Garman (Chondrichthyes: Potamotrygonidae) in northwestern Brazil. Proceedings of the Biological Society of Washington, 94, 1205–1210

Brooks, D.R. & Mayes, M.A. (1980)
Cestodes in four species of euryhaline stingrays from Colombia. Proceedings of the Helminthological Society of Washington, 47(1), 22–29

Brooks, D.R. & Mayes, M.A. & Thorson, T.B. (1979)
Paravitellotrema overstreeti n. sp. (Digenea: Hemiuridae) from the Colombian freshwater stingray Potamotrygon magdalenae Dumeril. Proceedings of the Helminthological Society of Washington, 46(1), 52–54

Brooks, D.R. & Mayes, M.A. (1978)
Acanthobothrium electricolum sp. n. and A. lintoni Goldstein, Henson, and Schlicht 1969 (Cestoda: Tetraphyllidea) from Narcine brasiliensis (Olfers) (Chondrichthyes: Torpedinidae) in Colombia. Journal of Parasitology, 64(4), 617–619

Mayes, M.A. & Brooks, D.R. & Thorson, T.B. (1978)
Two new species of Acanthobothrium van Beneden 1849 (Cestoidea: Tetraphyllidea) from freshwater stingrays in South America. Journal of Parasitology, 64(5), 838–841