original description
Janssen, A. W. (1980). A mollusc-fauna with <em>'Pseudamnicola' helicella</em> (Braun) from the Atuatuca Formation (Oligocene) at St.-Truiden (Belgium, Province of Limburg). <em>Mededelingen van de Werkgroep voor Tertiaire en Kwartaire Geologie.</em> 17(2): 43-55., available online at https://natuurtijdschriften.nl/pub/521043
page(s): 48-49, pl. 2, figs 11-12 [details] Available for editors [request]
From editor or global species database
Type locality Maison 'Vleminckx’ locality at Butsel, Boutersem, Vlaams Brabant, Belgium; Boutersem Sands, early Rupelian, early Oligocene [details]