TY - SER AU - N.F.H. TI - Lower upper cretaceous plant microfossils from minnesota KW - Paleobotany - Minnesota KW - Cretaceous geologic period KW - Micropaleontology N1 - This is an Book reviews of Lower Upper Cretaceous plant microfossils from Minnesota, Bulletin Minnesota Geological Survey, 1961. By Richard L. Pierce. Pp. 42, 86 ER -