Cretarhabdus barremianus

Cretarhabdus barremianus Black, 1971a

Optical properties consistent with those of Cretarhabdus.

Species of Cretarhabdus comprise a cretarhabdid pelaga sloping towards a distally arched central area, which is spanned by an axial cross supporting a distal process. The inter-cross area is occupied by lateral bars that delimit pores arranged in two or more complete concentric cycles. The number of pores in the outer cycle is typically 12, but rarely 11 or 13, a feature characteristic of Cretarhabdus barremianus.

Black, M. 1971a. Coccoliths of the Speeton Clay and Sutterby Marl. Proceedings of the Yorkshire Geological Society 38: 381-424.

Crux, J. A. 1989. Biostratigraphy and palaeogeographical applications of Lower Cretaceous nannofossils from north-western Europe. In: Crux, J. A. & van Heck, S. E. (Eds) Nannofossils and their applications: Proceedings of the 2nd INA Conference, London 1987. British Micropalaeontological Society Publication Series. 143-211.