The Commission has ruled that the usage of the name Obovaria Rafinesque, 1819 is conserved for a freshwater bivalve from the eastern United States by designation of Unio retusa Lamarck, 1819 as the type species and that the name Obovaria obovalis Rafinesque, 1820 is a nomen oblitum.
Obovaria Rafinesque, 1819 (Mollusca, Bivalvia): usage conserved by designation of Unio retusa Lamarck, 1819 as the type species," The Bulletin of Zoological Nomenclature 65(1), 64-65, (1 March 2008). https://doi.org/10.21805/bzn.v65i1.a12