New archaeocyatha findings from the Oldyndinskaya suite (Western Transbaikalia)

Archaeocyatha Sajanolynthus desideratus, Nochoroicyathus arteintervallum, Sibirecyathus abacanicus, Stapicyathus abakanensis, Leptosocyathellus mirandus, Cyclocyathella jakovlevi, Plicocyathus admirabilis, Sanarkocyathus sp., Annulocyathella lavrenovae, Clathricoscinus vassilievi, Usloncyathus sp. Indet in the limestones of the Lower Cambrian Oldynda Suite (Western Transbaikalia) were discovered for the first time that makes it possible to contribute to the characteristics of the Oldyndinskaya Suite biodiversity and determine a closer relationship between paleobasins of the margins of the Siberian Platform in the Early Cambrian.