Klishko, O., M. Lopes-Lima, E. Froufe, A.E. Bogan, L. Vasiliev & L. Yanovich. 2017. Taxonomic reassessment of the freshwater mussel genus Unio (Bivalvia: Unionidae) in Russia and Ukraine based on morphological and molecular data. Zootaxa 4286(1): 93-112. https://doi.org/10.11646/zootaxa.4286.1.4.
(click the figure number to see the cladogram)