Wood S. (1839). On the fossil shells of the Crag. <em>Magazine of Natural History.</em> 3: 460–465, pl. 7. page(s): 461, pl. 7 fig. 1. [details]
MolluscaBase eds. (2024). MolluscaBase. Bulla quadrata S. V. Wood, 1839. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024) European Register of Marine Species at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=720738 on 2024-04-26
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Bulla quadrata S. V. Wood, 1839. Accessed at: https://marbef.org/data/aphia.php?p=taxdetails&id=720738 on 2024-04-26
original descriptionWood S. (1839). On the fossil shells of the Crag. <em>Magazine of Natural History.</em> 3: 460–465, pl. 7. page(s): 461, pl. 7 fig. 1. [details]