original description
Boettger, O. (1889). Die Entwicklung der Pupa-Arten des Mittelrheingebietes in Zeit und Raum. <em>Jahrbücher des Nassauischen Vereins für Naturkunde.</em> 42: 225-327., available online at https://www.biodiversitylibrary.org/page/7155832
page(s): 262, pl. 6, fig. 7 [details]
additional source
Prysiazhniuk, V.A. (2017). Novye vydy roda <em>Pupilla</em> Turton, 1831 (Mollusca, Pulmonata) yz verkhnekaynozoyskykh otlozhenyy Kazakhstana y sopredelʹnykh terrytoryy [The new species of <em>Pupilla</em> Turton, 1831 genus (Mollusca, Pulmonata) from the upper Cenozoic deposits in Kazakhstan and adjacent areas]. <em>Reports of the National Academy of Sciences of Ukraine.</em> 2017 (2): 53-59., available online at https://doi.org/10.15407/dopovidi2017.02.053
page(s): 57, pl. 1, figs 4-5 [details] Available for editors [request]
From editor or global species database
Type locality Kam'yanka ["Kamenka"], Poltava Oblast, Ukraine; middle Pleistocene (?) [details]