The question of the stratigraphy of the Uralian and Permian has received in recent years much attention on the part of specialists from different continents of the Globe. This subject is also a sore and much discussed question for Russian geologists. (?)eologists of the country where these de(?) The question of the stratigraphy of the Uralian and Permian has received in recent years much attention on the part of specialists from different continents of the Globe. This subject is also a sore and much discussed question for Russian geologists. (?) Eologists of the country where these de (?)