Stradnerlithus comptus Black, 1971
Diadozygus Rood, Hay & Barnard, 1971
Nodosella Rood, Hay & Barnard, 1973
Black, M., (1971): Coccoliths of the Speeton Clay and Sutterby Marl. - Proceedings of the Yorkshire Geological Society. 38: 381-424.
Rood, A. P., Hay, W. W. & Barnard, T., (1971): Electron Microscope Studies of Oxford Clay Coccoliths. - Eclogae Geologicae Helvetiae. 64: 245-272.
Rood, A. P., Hay, W. W. & Barnard, T., (1973): Electron microscope studies of Lower and Middle Jurassic coccoliths. - Eclogae Geologicae Helvetiae. 66: 365-382.