Author: PFEFFERKORN, H.W. Title: Pennsylvanian tree fern compressions Caulopteris, Megaphyton, and Artisophyton gen. nov. in Illinois.
Description: 1976. Illinois St. geol. Surv. Circ. 492; 31 pp. 13 fig. 6 plts. Orig. wrps. with libr. stamp, very good.
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Price: EUR 7.00 = appr. US$ 7.61 Seller: Lingua Terrae Books
- Book number: 57146
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