Author: Burri, F., 1956.:
Title: Die Rhynchonelliden der Unteren Kreide (Valanginien-Barrémien) im westschweizerischen Juragebirge.
Description: Eclogae Geol. Helvet., 49(2): pp. 599-701, several photos on 9 plates. 3 plates of photos of thin sections, 2 plates of columnar sections, 1 double-page diagram, 38 figs., 10 tables, refs. Offprint, orig. wrappers.

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