Petuch, E. J. & Berschauer, D. P. (2023). The Ecphoras. Iconic Fossils of Eastern North America. CRC Press, Boca Ratón, xii + 207 pp. page(s): 143, figs 5.26 A-C [details] Available for editors
MolluscaBase eds. (2025). MolluscaBase. Ecphora (Powhatan) grulkei Petuch & Berschauer, 2023 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1799624 on 2025-05-27
Marine Species Traits editorial board (2025). Marine Species Traits. Ecphora (Powhatan) grulkei Petuch & Berschauer, 2023 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1799624 on 2025-05-27
original descriptionPetuch, E. J. & Berschauer, D. P. (2023). The Ecphoras. Iconic Fossils of Eastern North America. CRC Press, Boca Ratón, xii + 207 pp. page(s): 143, figs 5.26 A-C [details] Available for editors