Great Plains Studies, Center for


Date of this Version

Spring 2005


Published in Great Plains Research Vol. 15, No. 1, 2005. Copyright © 2005 The Center for Great Plains Studies, University of Nebraska–Lincoln. Used by permission.


The Hell Creek Formation (especially near the Fork Peck Reservoir and the Cedar Creek Anticline in east-central Montana) has been extensively studied over the years to evaluate changes in terrestrial floras and faunas across the Cretaceous-Tertiary (K-T) boundary. The research round in this volume, however, contains important new data from the lesser studied eastern outcrop area of western North Dakota, South Dakota, and nearby areas, along with new analyses of data from the well-studied areas around Fort Peck Reservoir. The compilation or new research is based on years of field studies that, for the most part, have not been published. This large and handy reference, therefore, provides in one place a synthesis or data currently known about the Hell Creek and should fuel further research on North American terrestrial and marine conditions at the end or the Cretaceous.