Photomicrograph of nannofossils of the Karama A section with 1000× magnification: A. Braarudosphaera bigelowii. B, C. Coccolithus pelagicus. D. Coccolithus sp. E. Cyclicargolithus abisectus. F. Cyclicargolithus floridanus. G. Reticulofenestra bisecta. H. Dyctiococcites scrippsae. I. Cyclicargolithus luminis. J. Reticulofenestra sp. K. Reticulofenestra hillae. L. Reticulofenestra spp. M. Discoaster deflandrei. N, O. Discoaster tanii. P–R. Discoaster sp. S, T. Sphenolithus moriformis. U. Sphenolithus pseudoradians. V. Sphenolithus distentus. W. Sphenolithus predistentus. X. Sphenolithus tribulosus. Y. Zygrhablithus bijugatus.