Bivalvia | ... | Unionoidea | Unionidae | Gonideinae | Rectidentini | Contradentina | Trapezoideus
46 specimens + 46 Genbank vouchers

Gould, 1843. Proc. Boston Soc. Nat. Hist. 1: 141.
Type(s): LECTOTYPE USNM_84161, Tavoy, Burmah.
Trapezoideus foliaceus — Simpson (1900), Preston (1912), Simpson (1914), Preston (1915), Haas (1919), ... Wu et al. (2024), Liu et al. (2024), Zieritz et al. (2024), Wu et al. (2024), Jeratthitikul et al. (2024)
Trapezoideus exolescens exolescens — Brandt (1974), Subba Rao (1989), Ramakrishna & Dey (2007)
Trapezoideus exolescens — Graf & Cummings (2007), IUCN (2010), He & Zhuang (2013)
Trapezoideus foliaceus — Simpson (1900), Preston (1912), Simpson (1914), Preston (1915), Haas (1919), ... Wu et al. (2024), Liu et al. (2024), Zieritz et al. (2024), Wu et al. (2024), Jeratthitikul et al. (2024)
Trapezoideus exolescens exolescens — Brandt (1974), Subba Rao (1989), Ramakrishna & Dey (2007)
Trapezoideus exolescens — Graf & Cummings (2007), IUCN (2010), He & Zhuang (2013)