Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Quadrulini | Quadrulina | Quadrula
1 available nominal species synonym (2 total synonyms)
Quadrula nobilis — Tiemann et al. (2007), Williams et al. (2008), Bogan (2010), Campbell & Lydeard (2012), Szumowski et al. (2012), Williams et al. (2017), Marshall et al. (2018), Neemuchwala et al. (2023), Keogh et al. (2024), FMCS (2025), Campbell & Lydeard (2026)
Quadrula quadrula — Haag (2012)
“Quadrula nobilis” ** — Campbell & Lydeard (2012)
“Quadrula quadrula” ** — Reis et al. (2013), Amaro et al. (2017), Gasparini et al. (2020)
Tritogonia nobilis — Lopes-Lima et al. (2019), Graf & Cummings (2021), FMCS (2021), de Moulpied et al. (2022), Hopper et al. (2023)
Mobile Basin west to Texas, Gulf Coastal Plain, and in the Interior Basin north to Kentucky, USA. (North America: NA2 NA4)

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JFBM_22856_4 (SK18141). (COI: PQ038623, ND1: PQ057616, go to GenBank) Alabama River (32.392701, -87.004616).
ASUMZ_1460_8 (SK19055). (COI: PQ038653, ND1: PQ217096, go to GenBank) Bayou LaGrue (34.09942, -91.16562).
UAUC_2631. (ND1: AY158804, go to GenBank) Neches R., Tyler Co., Texas.
UAUC_145. (16S: AF232798, COI: AF232823, ND1: AY158789, go to GenBank) Ohio R., Henderson Co., Kentucky.
JFBM_22864_1 (SK18169). (COI: PQ038634, ND1: PQ057622, go to GenBank) Osage River (38.231031, -92.558275).
JFBM_22864_10 (SK18178). (COI: PQ202239, go to GenBank) ditto.
JFBM_22864_10_ (SK18178). (COI: PQ038636, ND1: PQ217095, go to GenBank) ditto.
JFBM_22864_9 (SK18177). (COI: PQ038635, COI: PQ202238, ND1: PQ217094, go to GenBank) ditto.
UAUC_403. (ND1: AY158786, go to GenBank) Pascagoula R., Jackson Co., Mississippi.
TXA&M_NRI_8619_1 (SK86191). (COI: PQ038755, ND1: PQ057691, go to GenBank) Red River (33.87305, -95.5412).
JFBM_22855_2 (SK18113). (COI: PQ038622, ND1: PQ057615, go to GenBank) Tennessee River (34.734213, -87.773591).
BSGLC_1856. (SRA: SRX13980280, go to GenBank)