Oppenheim, P. (1895). Neue Binnenschnecken aus dem Vicentiner Eocän. <em>Zeitschrift der Deutschen Geologischen Gesellschaft.</em> 47: 57-193., available online athttps://www.biodiversitylibrary.org/page/43966013 page(s): 100-101, pl. 4, figs 10-11 [details]
MolluscaBase eds. (2021). MolluscaBase. Stenogyra (Opeas) orci Oppenheim, 1895 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1343517 on 2025-05-06
Marine Species Traits editorial board (2025). Marine Species Traits. Stenogyra (Opeas) orci Oppenheim, 1895 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1343517 on 2025-05-06
original descriptionOppenheim, P. (1895). Neue Binnenschnecken aus dem Vicentiner Eocän. <em>Zeitschrift der Deutschen Geologischen Gesellschaft.</em> 47: 57-193., available online athttps://www.biodiversitylibrary.org/page/43966013 page(s): 100-101, pl. 4, figs 10-11 [details]