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Cretaceous orbitoid larger foraminifera of the families Pseudorbitoididae, Orbitoididae, and Orbitocyclinidae are known from the Green Island and Grange inliers (western Jamaica), from the Sunderland and Central inliers (west-central Jamaica), and from the Blue Mountain Inlier (eastern Jamaica). They occur in prominent limestone units that are regarded as ranging in age from Campanian to Early Maastrichtian on the basis of nannofossils and accompanying rudist assemblages. Cretaceous pseudorbitoid, orbitoid, and orbitocyclinid foraminifera are useful in interpreting fluctuations of the depositional environment and for time-stratigraphic correlation of Late Cretaceous limestones across Jamaica.

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