Mavrinskaya Tatyana M.; Savelyeva Elena N.; Shumatbaev Kirill D.(Общество с ограниченной ответственностью «Георесурсы», 2018)
A conodont sequence from the Przhidolian stage of the Upper Silurian and almost the entire Lokhkovian stage of the Lower Devonian has been established in the sections of the Upper Silurian-Lower Devonian on the southwestern ...