Branson, C.C. 1935. Fresh-water invertebrates from the Morrison (Jurassic?) of Wyoming. Journal of Paleontology 9(6): 514-522.
Branson, 1935. Jour. Paleont. 9(6): 517.
Type species: Vetulonaia whitei Branson, 1935 (orig. desig.) = Vetulonaia whitei
Branson, 1935. Jour. Paleont. 9(6): 517, pl. 56, figs. 7, 11, 14, 16-18.
Branson, 1935. Jour. Paleont. 9(6): 517, pl. 56, figs. 1-5, 8-10, 12-13, 15, 19.