Packard, E. L. (1921). The Trigoniae from the Pacific coast of North America. <em>University of Oregon Publication.</em> 1: 1-59. page(s): 12, pl. 3, fig. 1 [details]
MolluscaBase eds. (2025). MolluscaBase. Trigonia charlottensis E. L. Packard, 1921 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=887141 on 2025-05-18
Marine Species Traits editorial board (2025). Marine Species Traits. Trigonia charlottensis E. L. Packard, 1921 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=887141 on 2025-05-18
original descriptionPackard, E. L. (1921). The Trigoniae from the Pacific coast of North America. <em>University of Oregon Publication.</em> 1: 1-59. page(s): 12, pl. 3, fig. 1 [details]