Cruciplacolithus salebrosus Black, 1971a
Black, M. 1971a. Coccoliths of the Speeton Clay and Sutterby Marl. Proceedings of the Yorkshire Geological Society 38: 381-424.
Jakubowski, M., 1986. New calcareous nannofossil taxa from the Lower Cretaceous of the North Sea. INA Newsletter. 8, 38-42.
Cruciplacolithus salebrosum
Black, 1971
Berriasian - Hauterivian
Speeton Clay at Speeton, England