Bivalvia | Unionida | Trigonioidoidea | Nakamuranaiadidae
0 Recent freshwater species (2 total species)
Guo, 1981. 12th Ann. Conf. Palaeo. Soc. China: 65.
(intro'd as sub-gen. of Nippononaia Suzuki, 1941)
The Taxonomic History lists the ways authors have classified the species currently assigned to Eonippononaia, since 1900.
Nippononaia (Eonippononaia) — Guo (1981)