Bivalvia | Unionida | Hyrioidea | Hyriidae | Velesunioninae
1 Recent freshwater species (1 total species)
(intro'd as sub-gen. of Unio Retzius, 1788)
Tapparone Canefri, 1883. Ann. Mus. Storia Nat. Genova 19: 295.
Type species: Unio (Microdontia) anodontaeformis Tapparone Canefri, 1883 (monotypy) = Microdontia anodontaeformis
The Taxonomic History lists the ways authors have classified the species currently assigned to Microdontia, since 1900.
Nodularia (s.s.) — Simpson (1900)
Microdontia — Haas (1913), McMichael (1956), McMichael & Hiscock (1958), Haas (1969), Hadl (1976), ... Sahidin et al. (2021), Nagel (2025), Campbell & Lydeard (2026), Lawrie et al. (2026), Prié et al. (2026)
Cristadens — Simpson (1914)
Nodularia (s.s.) (Group of N. contradens) — Simpson (1914)
Ctenodesma (Nesonaia) — Haas (1924)
Hyridella — R.I. Johnson (1948)