A USGS Zonal Table for the Upper Cretaceous Middle Cenomanian--Maastrichtian of the Western Interior of the United States Based on Ammonites, Inoceramids, and Radiometric Ages
Open-File Report
doi 10.3133/ofr20061250
Full Text
Open PDFAbstract
Available in full text
Date
January 1, 2006
Authors
Publisher
US Geological Survey