Obovaria Rafinesque, 1819
Rafinesque, 1819, Jour. Phys. Chim. Hist. Nat. 88: 426.
Rafinesque, 1820, Ann. Gén. Sci. Phys. 5 (13): 310 [as ‘Obovaria’].
Rafinesque, 1864, [in] Binney & Tryon, reprint: 29, 54.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio retusa Lamarck, 1819 (ICZN) = Obovaria retusa

Rotundaria Rafinesque, 1820
Rafinesque, 1820, Ann. Gén. Sci. Phys. 5 (13): 308.
Rafinesque, 1864, [in] Binney & Tryon, reprint: 52.
(intro'd as sub-gen. of Obliquaria Rafinesque, 1820)
Type species: Obliquaria (Rotundaria) subrotunda Rafinesque, 1820 (sub. desig. by Herrmannsen, 1848: 407) = Obovaria subrotunda

Pseudoon Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 601 [as ‘Pseudoön’].
Simpson, 1914, Descr. Cat. Naiades: 298.
(intro'd as sub-gen. of Obovaria Rafinesque, 1819)
Type species: Unio ellipsis Lea, 1828 (original designation) = Obovaria olivaria

Luteacarnea Frierson, 1927
Frierson, 1927, Check List N. Amer. Naiades: errata et corrigenda.
(intro'd as sub-gen. of Quadrula Rafinesque, 1820; new name for Striata Frierson, 1927)

Striata Frierson, 1927
Frierson, 1927, Check List N. Amer. Naiades: 50.
(homonym of O. Boettger, 1878 [Gastro.]; intro'd as sub-gen. of Quadrula Rafinesque, 1820; renamed Luteacarnea Frierson, 1927)
Type species: Obovaria striata Rafinesque, 1820 (orig. desig.) = Obovaria subrotunda

Taxonomic History (since 1900)

Obovaria (s.s.) — Simpson (1900), Simpson (1914), Ortmann (1918), Ortmann (1924), Ortmann (1925), Frierson (1927), Haas (1930), Thiele (1934), Haas (1969), Haas (1969)
Lampsilis (sec. Eurynia) — Simpson (1900)
Obovaria (Pseudoon) — Simpson (1900), Ortmann (1909), Ortmann (1912), Simpson (1914), Frierson (1927), F.C. Baker (1928), Thiele (1934), Haas (1969), Haas (1969), Campbell & Lydeard (2012)
Obovaria — Simpson (1900), Simpson (1900), Ortmann (1909), Ortmann (1909), ..., Porto-Hannes et al. (2019), Burlakova et al. (2019), Smith et al. (2019), Graf & Cummings (2021)
Quadrula (sec. Theliderma) — Simpson (1900), Simpson (1914)
— Simpson (1900), de Gregorio (1914), Simpson (1914), Vanatta (1915), Ortmann & Walker (1922), Burch (1975), Parmalee & Bogan (1998)
Unio (s.s.) — Call (1900)
Quadrula (sec. Fusconaia) — Simpson (1900)
Lampsilis — Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1912), ..., Graf & Cummings (2007), Watters et al. (2009), Cummings & Graf (2010), ITIS (2012)
Lampsilis (Eurynia) — Simpson (1914)
Unio — de Gregorio (1914)
Eurynia (Micromya) — Ortmann (1916)
Obovaria (Pseudoön) — Utterback (1916), Ortmann (1925)
Quadrula (Striata) — Frierson (1927)
Lampsilis (Ortmanniana) — Frierson (1927), Haas (1969)
Lampsilis (Venusta) — Frierson (1927)
Rotundaria — Thiele (1934)
Villosa — Athearn (1964), R.I. Johnson (1967), Burch (1975), Gordon et al. (1979), ..., Haag (2012), ITIS (2012), IUCN (2012), Wu et al. (2018)
Lampsilis (Venustaconcha) — Haas (1969)
Quadrula (Luteacarnea) — Haas (1969), Haas (1969)
Plethobasus — Morrison (1969), R.I. Johnson (1980)
Pseudoon — Campbell & Lydeard (2012)