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nominal species Quadrula (Quadrula) quadrula bullocki F.C. Baker, 1928

Quadrula (Quadrula) quadrula bullocki F.C. Baker, 1928 = Quadrula quadrula

F.C. Baker, 1928. Bull. Wisconsin Geol. Nat. Hist. Survey 70(2): 87, pl. 46, figs. 1-3.
(intro'd as intra-sp. of Obliquaria (Quadrula) quadrula Rafinesque, 1820)
Type(s): HOLOTYPE (ORIG. DESIG.) UMMZ_209203, Fox River, nr. De Pere, Wisc.

= Quadrula quadrula

Taxonomic Opinions

+ Quadrula quadrula (Rafinesque, 1820) — Lopes-Lima et al., 2019

+ Quadrula quadrula (Rafinesque, 1820) — Watters et al., 2009

+ Quadrula quadrula (Rafinesque, 1820) — Williams et al., 2008

+ Quadrula quadrula (Rafinesque, 1820) — Parmalee & Bogan, 1998

+ Quadrula quadrula (Rafinesque, 1820) — R.I. Johnson, 1980

+ Quadrula quadrula (Rafinesque, 1820) — Burch, 1975

+ Quadrula quadrula (Rafinesque, 1820) — Clarke, 1973

= Quadrula (s.s.) quadrula bullocki Nov. Var. — F.C. Baker, 1928