Affiliation:
1. Borisyak Paleontological Institute, Russian Academy of Sciences
2. Institute of Paleontology, Mongolian Academy of Sciences
Abstract
The fossils of the genus Yochelcionella Runnegar et Pojeta, 1974 from the Salanygol and Khairkhan formations of the Zavkhan structural-facies zone were re-studied as a part of the general revision of malacofauna from the Vendian–Lower Cambrian deposits of Western Mongolia. It was found out that studied strata, in addition to the earlier reported species Y. parva Zhegallo, 1996 and Y. crassa Zhegallo, 1996, contain two other forms identified as Y. chinensis Pei, 1985 and Yochelcionella sp. Y. chinensis has the widest distribution among species of the genus Yochelcionella and can be successfully used to correlate sediments of remote paleobasins. The diagnosis and composition of the genus Yochelcionella are revised, the species Y. chinensis is described.
Publisher
The Russian Academy of Sciences
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