Whitfield, R.P. 1903. Notice of six new species of unios from the Laramie Group. Bulletin of the American Museum of Natural History 19: 483-487. Available electronically.
Whitfield, 1903. Bull. AMNH 19: 483, pl. 38, figs. 1-5.
Whitfield, 1903. Bull. AMNH 19: 485, pl. 38, figs. 8-9.
(homonym of Unio brownii Lea, 1856; renamed Parreysia barnumi Pilsbry, 1904)
Whitfield, 1903. Bull. AMNH 19: 486, pl. 40, figs. 3-4.
Whitfield, 1903. Bull. AMNH 19: 487, pl. 39, figs. 1-11.
Whitfield, 1903. Bull. AMNH 19: 485, l. 38, figs. 6-7.
Whitfield, 1903. Bull. AMNH 19: 626, pl. 40, figs. 5-6.
Whitfield, 1903. Bull. AMNH 19: 484, pl. 40, fig. 10.
‘Meek’ of Authors.
Whitfield, 1903. Bull. AMNH 19: 487.
Stanton, 1909. Proc. Washington Acad. Sci. 11(3): 248.
(misidentified reference to Unio vetusta Meek, 1860)