Author: Wagner, R.H., & Winkler Prins, C.F., 1970.:
Title: The stratigraphic succession, flora and fauna of Cantabrian and Stephanian A rocks at Barruelo (prov. Palencia), N.W. Spain. [Offprint from:] Colloque sur la stratigraphie du Carbonifère.
Description: Liège: Université. 8vo. Pp. 487-551,[10], 5 pls. of fossils 1 fold. map, 7 other illus., refs. Orig. wrs.

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