Douglas J. Nichols

• The Hell Creek Formation and the Cretaceous-Tertiary boundary in the northern Great Plains
• Palynology in relation to depositional environments of lignite in the Wilcox group (early Tertiary) in Texas
• Plants and the K-T Boundary
• Plants and the K-T boundary
• The Hell Creek Formation and the Cretaceous-Tertiary Boundary in the Northern Great Plains
• Palynology of the Currant Creek and Mesaverde formations, in the Currant Creek-Duchesne River area, Duchesne and Wasatch Counties, Utah
• Palynostratigraphy in relation to sequence stratigraphy, Straight Cliffs Formation (Upper Cretaceous), Kaiparowits Plateau, Utah
• Palynostratigraphy of the Tullock Member (lower Paleocene) of the Fort Union Formation in the Powder River Basin, Montana and Wyoming