1. Late Cretaceous palynomorphs from northeastern Arizona;Agasie;Micropalaeontology,1969
2. Depositional framework and reservoir-quality studies of selected Nanushuk Group outcrops, north slope, Alaska;Ahlbrandt;United States Geological Survey Circular,1979
3. Weichselia reticulata (Stokes et Webb) Fontaine, from the Wealden of Belgium;Alvin;Memoire de l'Institut Royal des Sciences Naturelles de Belgique,1971
4. Cheirolepidiaceae: biology, structure and paleoecology;Alvin;Review of Palaeobotany and Palynology,1982
5. On the flora of the Frontier Formation of southwestern Wyoming;Andrews;Annals of the Missouri Botanical Garden,1941