Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Lampsilini
2 Recent freshwater species (2 total species)
Frierson, 1927. Check List N. Amer. Naiades: 79.
(intro'd as sub-gen. of Lampsilis Rafinesque, 1820)
Type species: Unio carinatus Barnes, 1823 (original designation) = Ortmanniana ligamentina
The Taxonomic History lists the ways authors have classified the species currently assigned to Ortmanniana, since 1900.
Lampsilis (sec. Eurynia) — Simpson (1900)
Unio (s.s.) — Call (1900)
Bariosta — Simpson (1900), Simpson (1914)
Lampsilis (s.s.) — Simpson (1900), Simpson (1914), Frierson (1927), Haas (1969)
Unio (sec. Elliptio) — Simpson (1900), Simpson (1914)
Unio (Simonaias) — Martens (1900)
Lampsilis — Ihering (1901), Ortmann (1909), Ortmann (1909), Ortmann (1909), Vanatta (1915), Vidrine (1993), FMCS (2025)
Nephronaias — Ortmann (1912), Utterback (1916), Ortmann (1918)
Lampsilis (Eurynia) — Simpson (1914)
Actinonaias — Ortmann & Walker (1922), Ortmann (1924), Ortmann (1925), F.C. Baker (1928), Murray & Leonard (1962), ... FMCS (2021), Walters et al. (2021), Bieler (2021), Jeratthitikul et al. (2022), Hopper et al. (2023)
Lampsilis (Ortmanniana) — Frierson (1927), Haas (1969), Haas (1969)
Lampsilis (Ligumia) — Frierson (1927), Haas (1930)
Elliptio (Sphenonaias) — Frierson (1927)
Lampsilis (sec. Ortmanniana) — Thiele (1934)
Unio — Henderson (1935)
Ellipsaria — Morrison (1969)
Ligumia — Haas (1969)
Nephronaias (Sphenonaias) — Haas (1969)
Venustaconcha — Oesch (1984)
Sphenonaias — Graf & Cummings (2007), Graf & Cummings (2021)
Ortmanniana — Pfeiffer et al. (2019), Lor et al. (2020), Graf & Cummings (2021), Stodola et al. (2021), Layer et al. (2022), FMCS (2025)
Ortmanniana (Actinonaias) — Porto-Hannes et al. (2021)