The Cenomanian stage is characterised by a major firstorder sea-level rise (Haq et al., 1987), which resulted in the flooding of continental areas and in the development of widespread shallow marine depositional settings.
In this work we present a new proposal of regional correlation of the Cenomanian stage (Figs.
These are hard-to-recover reserves, which lie above the Cenomanian stage
, usually at depths of 810-840 metres.
The Cenomanian stage
was established in the lower part of the Nkalagu Formation based on the co-occurrence of Rotalipora balenaensis and Globigerinelloides caseyi .
Stable isotope mass balance modeling results of meteoric [[delta].sup.18]O values from the Cenomanian Stage
of the Cretaceous Western Interior Basin (KWIB) suggest that precipitation and evaporation fluxes were greater than that of the present.
(Comp.) (1996): The Cenomanian stage
. In: Rawson, P.F., Dhont, A.V., Hancock, J.M., Kennedy, W.J.