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Data last updated
Mon 1 Dec 2025

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Quadrulini

genus Megalonaias Utterback, 1915: synonymy

2 Recent freshwater species (2 total species)

Synonymy

Taxonomic History (since 1900)

The Taxonomic History lists the ways authors have classified the species currently assigned to Megalonaias, since 1900.

Quadrula (sec. Crenodonta) — Simpson (1900), Simpson (1914)
Unio (Crenodonta) — Martens (1900)
Unio (s.s.) — Call (1900)
Quadrula — Simpson (1900), Ortmann (1909), Pilsbry (1910)
Crenodonta — Ortmann (1912), Haas (1929), Clench & Turner (1956)
Megalonaias — Utterback (1915), Ortmann & Walker (1922), Ortmann (1923), Ortmann (1924), Ortmann (1925), ... Hopper et al. (2023), Hauck et al. (2023), Ma et al. (2024), FMCS (2025), Cummings et al. (2025)
Truncilla — Ortmann & Walker (1922)
Amblema (s.s.) — Frierson (1927)
Amblema (Megalonaias) — Frierson (1927), Haas (1930)
Lampsilis (Ligumia) — Frierson (1927)
Amblema (sec. Megalonaias) — Thiele (1934)
Amblema — Goodrich & van der Schalie (1937), Davis & Fuller (1981), Vidrine (1993)
Ligumia — Haas (1969)
Tritogonia — ITIS (2012)
M. — Marshall et al. (2018)