Squires DF. (1958). The Cretaceous and Tertiary corals of New Zealand. <em>New Zealand Geological Survey Paleontological Bulletin.</em> 29: 1-107, pls. 1-16.[details]
McFadden, C.S.; Cordeiro, R.; Williams, G.; van Ofwegen, L. (2024). World List of Octocorallia. Graphularia longissima Squires, 1958 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1452428 on 2024-06-19
original descriptionSquires DF. (1958). The Cretaceous and Tertiary corals of New Zealand. <em>New Zealand Geological Survey Paleontological Bulletin.</em> 29: 1-107, pls. 1-16.[details]