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): 359, pl. 12, figs 21-22 [details]
From editor or global species database
Type locality Jonchery-sur-Vesles (Sables de Bracheux, late Thanetian, late Paleocene) and Mont Bernon near Épernay (Sparnacian, early Ypresian, early Eocene), Marne, France [details]