Cretaceous foraminifers from DSDP Hole 95-612

Site 612, located some 100 km southeast of Atlantic City in the northwest Atlantic Ocean, was cored to a total depth of 675.3 m below seafloor. The final 114.96 m recovered an Upper Cretaceous succession that can be assigned to the late Campanian and early Maestrichtian. The dark mudstones of Campanian age contain an impoverished fauna of planktonic foraminifers, while the paler, nannofossil chalks of Maestrichtian age contain a typically diverse planktonic fauna. The environment represented by the Campanian fauna indicates the presence of slightly anoxic water in the vicinity of the New Jersey Slope at that time.