Bivalvia | Unionida | Unionoidea | Unionidae | Gonideinae | Rectidentini | Rectidentina
2 Recent freshwater species (2 total species)
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 853.
Simpson, 1914. Descr. Cat. Naiades: 1157.
Type species: Unio prolongatus Drouët, 1894 (orig. desig.) = Rectidens sumatrensis
The Taxonomic History lists the ways authors have classified the species currently assigned to Rectidens, since 1900.
Rectidens — Simpson (1900), Simpson (1914), Haas (1914), Thiele (1934), van Benthem Jutting (1953), ... Wu et al. (2024), Jeratthitikul et al. (2024), Zhang et al. (2024), Dai et al. (2025), Chen et al. (2025)
Unio — Martens (1900), Preston (1912)