Author: Klapper, G., & Ziegler, W., 1967.:
Title: Evolutionary development of the Icriodus latericrescens group [Conod.] in the Devonian of Europe and North America.
Description: Palaeontogr., Abt. A, 127(1/3): pp. 68-83, 4 pls., 2 figs., refs. 4to. Plain new wrs.

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