De Gregorio, A. (1892). Description de certains fossiles extramarins de l'Éocène Vicentin. <em>Annales de Géologie et de Paléontologie.</em> 10: 1-28, 2 pl., available online athttps://www.biodiversitylibrary.org/page/37166124 page(s): 21, pl. 2, figs 28-30 [details]
MolluscaBase eds. (2025). MolluscaBase. Clausilia indifferens var. discinata De Gregorio, 1892 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1343194 on 2025-05-14
Marine Species Traits editorial board (2025). Marine Species Traits. Clausilia indifferens var. discinata De Gregorio, 1892 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1343194 on 2025-05-14
original descriptionDe Gregorio, A. (1892). Description de certains fossiles extramarins de l'Éocène Vicentin. <em>Annales de Géologie et de Paléontologie.</em> 10: 1-28, 2 pl., available online athttps://www.biodiversitylibrary.org/page/37166124 page(s): 21, pl. 2, figs 28-30 [details]