Baker, F.C. 1905. Transactions of the Academy of Science of St. Louis 15.
‘Lamarck’ of Authors.
Lapham, 1860. Proc. Acad. Nat. Sci. 12: 156.
Baker, 1905. Trans. Acad. Sci. St. Louis 15: 256.
Ortmann, 1919. Mem. Carnegie Mus. 8(1): 73. [in part]
(misidentified reference to Unio obliqua Lamarck, 1819)
‘Hildreth’ Call, 1900. Ind. Dept. Geol. Nat. Res. (1899): 492.
Baker, 1905. Trans. Acad. Sci. St. Louis 15: 253.
Shimek, 1921. Iowa Conserv. 5: 1.
(misidentified reference to Unio orbiculatus Hildreth, 1828)