Author: Barrick, J.E., & Klapper, G., 1976.:
Title: Multielement Silurian (Late Llandoverian-Wenlockian) conodonts of the Clarita Formation, Arbuckle Mountains, Oklahoma, and phylogeny of Kockelella.
Description: Geol. et Palaeont., 10: pp. 59-100, 118 microphotos on 4 pls., 5 figs., 4 tabs., refs. 4to. Plain new wrs.

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