Evolutionary, biostratigraphic, and taxonomic study of calcareous nannofossils from a continuous Paleocene-Eocene boundary section in New Jersey

Calcareous nannofossils of late Paleocene and early Eocene age were examined from six coreholes located in southern New Jersey. Fossil data indicate that four of these coreholes (GL 913, GL 915, GL 917, and the Clayton Core) contain an apparently continuous depositional sequence across the Paleocene-Eocene boundary. There are four new species described from this material, along with six new combinations, and several species were put into synonymy. Evolutionary trends within several species are recognized and discussed.