Yochelcionella chinensis (Gastropoda: Helcionelliformes) from the Lower Cambrian of Western Mongolia

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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.

作者简介

P. Parkhaev

Borisyak Paleontological Institute, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: pparkh@paleo.ru
俄罗斯联邦, Moscow

E. Zhegallo

Borisyak Paleontological Institute, Russian Academy of Sciences

Email: pparkh@paleo.ru
俄罗斯联邦, Moscow

D. Dorjnamjaa

Institute of Paleontology, Mongolian Academy of Sciences

Email: pparkh@paleo.ru
蒙古, Ulan-Bator

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