1. A revised Cenozoic geochronology and chronostratigraphy;Berggren,1995
2. Cenomanian-Santonian calcareous nannofossil biostratigraphy of a transect of cores drilled across the Western Interior Seaway;Bralower;Stratigraphy and Paleoenvironments of the Cretaceous Western Interior Seaway,1998
3. An integrated Cretaceous microfossil biostratigraphy;Bralower;Geochronology, Time Scales and Global Stratigraphic Correlation,1995
4. New nannofossil zonation scheme for the Boreal Campanian;Burnett;International Nannoplankton Association Newsletter,1991
5. Nannofossils and Upper Cretaceous (sub-) stage boundaries — state of the art;Burnett;International Nannoplankton Association Newsletter,1996