A composite section spans the upper Berriasian through most of the Cenomanian. Olive black marly limestones in this interval yield relatively rich, well-preserved nannofossil assemblages that allow biostratigraphic subdivision of the sequence.-from Authors
CITATION STYLE
Watkins, D. K., & Bowdler, J. L. (1984). Cretaceous calcareous nannofossils from Deep Sea Drilling Project Leg 77, southeast Gulf of Mexico. Initial Reports DSDP, Leg 77, Ft. Lauderdale to San Juan, 649–674. https://doi.org/10.2973/dsdp.proc.77.127.1984
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