Petuch, E. J. (1989 ["1988"]). <i>A Field Guide to the Ecphoras</i>. Charlottesville, VA: Coastal Education and Research Foundation. 140 pp. page(s): 130-131, pl. A1 fig. D [details]
MolluscaBase eds. (2025). MolluscaBase. Ecphora (Ecphora) pachycostata Petuch, 1989 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1799635 on 2025-05-27
Marine Species Traits editorial board (2025). Marine Species Traits. Ecphora (Ecphora) pachycostata Petuch, 1989 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1799635 on 2025-05-27
original descriptionPetuch, E. J. (1989 ["1988"]). <i>A Field Guide to the Ecphoras</i>. Charlottesville, VA: Coastal Education and Research Foundation. 140 pp. page(s): 130-131, pl. A1 fig. D [details]