Crucibiscutum ryazanicum

Crucibiscutum neuquenensis Bown & Concheyro 2004

Crucibiscutum trilensis Bown & Concheyro 2004

Crucibiscutum bastetanum Aguado, in Aguado et al., 2022

Aguado, R., Company, M., O'Dogherty, L., Sandoval, J. & Martinez, M. 2022. New insights into the Barremian–lower Aptian calcareous nannofossils of the Mediterranean Tethys: Chronostratigraphic and paleobiogeographic implications. Marine Micropaleontology. 173: 1-24.

Bown, P. R. & Concheyro, A. 2004. Lower Cretaceous calcareous nannoplankton from the Neuquén Basin, Argentina. In: Villa, G. et al. (Eds) Calcareous Nannofossil Palaeoecology and Palaeocenographic Reconstructions. Marine Micropaleontology 52: 51-84.

Jeremiah, J. 2001. A Lower Cretaceous nannofossil zonation for the North Sea Basin. Journal of Micropalaeontology, 20: 45–80.