Urobatis, Garman, 1913

DE CARVALHO, MARCELO R., MAISEY, JOHN G. & GRANDE, LANCE, 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 2004 (284), pp. 1-136 : 136

Urobatis , 20, 31, 36, 37, 42, 50, 51, 56, 59, 72–

74, 77, 84, 85, 90, 93, 96, 101, 102, 106, 108,

111, 121 U. concentricus , 9 U. halleri , 9, 36, 49, 81, 86f, 93 U. jamaicensis , 9, 31, 49, 56, 77, 81, 83f, 93, 96,

106 U. maculates, 10 U. tumbesensis , 10