Notes on the Cretaceous flora of western Iowa Bartsch, Paul, 1871-1960 creator text book n.p 1896 1896
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ENG Caption title. Extracted from Nat. hist. bull. Iowa Univ., v. 3, no. 4, 1896. Cretaceous Iowa Paleobotany QE924 .B32 1896 https://www.biodiversitylibrary.org/bibliography/7780 17515606 10.5962/bhl.title.7780 VXG