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)
Quadrula quadrula — Haag (2012), Reis et al. (2013), Amaro et al. (2017), Gasparini et al. (2020)
Tritogonia nobilis — Lopes-Lima et al. (2019), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023)
Mobile Basin west to Texas, Gulf Coastal Plain, and in the Interior Basin north to Kentucky, USA.

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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: 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).