original description
Cossmann, M. (1888). Catalogue illustré des coquilles fossiles de l'Éocène des environs de Paris. <em>Annales de la Société Royale Malacologique de Belgique.</em> 23: 3-328; pls 1-12. [published 1889; also published as preprint in 1888; see Breure & Backhuys, 2012: 140]., available online at https://www.biodiversitylibrary.org/page/5609412
page(s): 204, pl. 8, fig. 4 [details]
From editor or global species database
Type locality Étampes (Côte Saint-Martin) ("Mont-Saint-Martin"), Essonne, and Haravilliers (Le Ruel), Val-d'Oise, and Le Fayel, Oise, France; Bartonian, late Eocene [details]