Vorlage:Carvalho et al., 2004

• Carvalho, M.R., Maisey, J.G. & Grande, L. 2004. Freshwater stingrays of the Green River Formation of Wyoming (Early Eocene), with the description of a new genus and species and an analysis of its phylogenetic relationships (Chondrichthyes: Myliobatiformes). Bulletin of the American Museum of Natural History, 284: 1–136. (doi)