Florin, R., 1950, Upper Carboniferous and Lower Permian conifers: Botanical Review, v. 16, p. 258-282. Authors Florin, R. Publication Date 1950 Citation Botanical Review, v. 16, p. 258-282. State AZ Province CP County CN MO Keywords Paleontology Fossil Plant More Keywords Paleontology, Fossil Plant, AzGeoBib RefNum 3344