MolluscaBase eds. (2025). MolluscaBase. Trigonia plagia R. A. Philippi, 1899 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=865198 on 2025-05-22
Marine Species Traits editorial board (2025). Marine Species Traits. Trigonia plagia R. A. Philippi, 1899 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=865198 on 2025-05-22
original descriptionPhilippi, R. A. (1899). Los fósiles secondarios de Chile. <em>F. A. Brockhaus, Leipzig.</em> I-VI, 1-104., available online athttps://www.biodiversitylibrary.org/page/13775158 page(s): 92, pl. 38, fig. 7 [details]