Unio cor Conrad, 1834
Conrad, 1834, New Fresh-Water Shells: 28, pl. 3, fig. 3.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 247.
Type(s): HOLOTYPE MCZ_178792, Elk and Flint Rivers, Alabama.

Unio cor — Conrad (1834), Ferussac (1835), Hanley (1843), Conrad (1853)
Margarita (Unio) cor — Lea (1836)
Margaron (Unio) cor — Lea (1852), Lea (1870)
Unio (Lampsilis) cor — Adams & Adams (1857)
Pleurobema (s.s.) cor — Simpson (1900), Simpson (1914)
Fusconaia cor — Ortmann & Walker (1922), Burch (1975), Turgeon et al. (1988), Williams et al. (1993), Parmalee & Bogan (1998), Turgeon et al. (1998), Lydeard et al. (1999), Campbell et al. (2005), Graf & Cummings (2007), Burdick & White (2007), Williams et al. (2008), Cummings & Graf (2010), Bogan (2010), Haag (2012), IUCN (2012), Burlakova et al. (2012), ITIS (2012), Campbell & Lydeard (2012), Campbell & Lydeard (2012), Jones (2015), Williams et al. (2017), Perkins et al. (2017), Inoue et al. (2018), Pieri et al. (2018)
Quadrula (Pleuronaia) cor — Frierson (1927), Haas (1969)

Unio edgarianus Lea, 1840
Lea, 1840, Proc. Amer. Phil. Soc. 1: 288.
Lea, 1842, Trans. Amer. Phil. Soc. 8 [O. 3]: 214 [52], pl. 15, fig. 30.
Type(s): HOLOTYPE USNM_84685, Tenn R., Florence, Ala.

Unio edgarianus — Lea (1840), Conrad (1853), Küster (1861), Reeve (1864), de Gregorio (1914)
Margaron (Unio) edgarianus — Lea (1852), Lea (1870)
Unio (Lampsilis) edgarianus — Adams & Adams (1857)
Pleurobema (s.s.) edgarianus — Simpson (1900)
Pleurobema (s.s.) edgarianum — Simpson (1914)
Fusconaia cor — Ortmann & Walker (1922), Burch (1975), Parmalee & Bogan (1998), Williams et al. (2008), IUCN (2012)
Fusconaia edgariana — Ortmann (1924), Ortmann (1925), R.I. Johnson (1980), ITIS (2012)
Quadrula (Pleuronaia) cor — Frierson (1927), Haas (1969)
Fusconaia edgarianus — Stansbery (1970)

Fusconaia cor var. analoga Ortmann, 1918
Ortmann, 1918, Proc. Amer. Phil. Soc. 57(6): 533.
Ortmann, 1924, Amer. Midl. Nat. 9(1): 43.
(intro'd as intra-sp. of Unio cor Conrad, 1834)
Type(s): LECTOTYPE CM_61.6326, Clinch River, Speer’s Ferry, Scott Co., Virginia.

Fusconaia cor var. analoga — Ortmann (1918)
Fusconaia edgariana analoga — Ortmann (1924), Ortmann (1925)
Quadrula (Pleuronaia) analogia — Frierson (1927)
Quadrula (Pleuronaia) analoga — Haas (1969)
Fusconaia cor — Burch (1975), Parmalee & Bogan (1998), Williams et al. (2008)
Fusconaia edgariana — R.I. Johnson (1980)

Unio edgarianus Reeve, 1864
‘Lea’ Reeve, 1864, Conch. Icon. 16: pl. 15, sp. 65.
(reference to Unio edgarianus Lea, 1840)

Unio edgarianus — Reeve (1864)
Pleurobema (s.s.) edgarianus — Simpson (1900)
Quadrula (Pleuronaia) analogia — Frierson (1927)

Unio obuncus Lea, 1871
Lea, 1871, Proc. Acad. Nat. Sci. 23: 192.
Lea, 1874, Jour. Acad. Nat. Sci. 8 [O. 13]: 9 [13], pl. 2, fig. 5.
Type(s): HOLOTYPE USNM_84698, Holston R., E. Tenn.

Unio obuncus — Lea (1871)
Pleurobema (s.s.) edgarianus — Simpson (1900)
Pleurobema (s.s.) edgarianum — Simpson (1914)
Fusconaia cor — Ortmann & Walker (1922), Burch (1975), Parmalee & Bogan (1998), Williams et al. (2008)
Quadrula (Pleuronaia) cor — Frierson (1927), Haas (1969)

Unio andersonensis Lea, 1872
Lea, 1872, Proc. Acad. Nat. Sci. 24: 155.
Lea, 1874, Jour. Acad. Nat. Sci. 8 [O. 13]: 36 [40], pl. 12, fig. 33.
Type(s): HOLOTYPE USNM_84691, Holston R., E Tenn.

Unio andersonensis — Lea (1872)
Pleurobema (s.s.) edgarianus — Simpson (1900)
Pleurobema (s.s.) edgarianum — Simpson (1914)
Fusconaia cor — Ortmann & Walker (1922), Burch (1975), Parmalee & Bogan (1998), Williams et al. (2008)
Quadrula (Pleuronaia) cor — Frierson (1927), Haas (1969)

Unio andorsonensis de Gregorio, 1914
‘Lea’ de Gregorio, 1914, Il Nat. Siciliano 2: 50.
(error for Unio andersonensis Lea, 1872)

Unio andorsonensis — de Gregorio (1914)

Quadrula (Pleuronaia) analogia Frierson, 1927
‘Ortmann’ Frierson, 1927, Check List N. Amer. Naiades: 60, sp. 261.
(error for Fusconaia cor var. analoga Ortmann, 1918)

Quadrula (Pleuronaia) analogia — Frierson (1927)
Fusconaia cor — Parmalee & Bogan (1998)