original description
Cossmann M. (1889). Catalogue illustré des coquilles fossiles de l'Éocène des environs de Paris. <em>Annales de la Société Royale Malacologique de Belgique.</em> 24: 3-381, pl. 1-12., available online at https://www.biodiversitylibrary.org/page/5502754
page(s): 344 [348], pl. 11, figs 37, 38 [details]
From editor or global species database
Type locality Cuise-la-Motte ("Cuise"), Oise, France; Cuisian, late Ypresian, early Eocene [details]