original description
(of Valvata parvula Meek & Hayden, 1856 †) Meek, F.B.; Hayden, F.V. (1856). Descriptions of New Species of Acephala and Gastropoda, from the Tertiary formations of Nebraska Territory, with some general remarks on the Geology of the country about the sources of the Missouri River. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 8: 111-126., available online at https://www.biodiversitylibrary.org/page/1935165
page(s): 123 [details]
original description
(of Valvata subparvula Cossmann, 1921 †) Cossmann, M. (1921). Essais de paléoconchologie comparée. Douzième livraison. Paris: [the author]. 349 pp., plates A-D, 1-6., available online at http://biodiversitylibrary.org/page/37199513
page(s): 170 [details]
basis of record
Yen, T.-C. (1948). Paleocene fresh-water mollusks from southern Montana. <em>United States Geological Survey Professional Paper.</em> 214-C: 35-50.
page(s): 43, pl. 10, figs 20-20a [details]
From editor or global species database
Homonymy Senior secondary homonym of G. parvulus (Lörenthey, 1906). [details]