Title: Permskie i triasovye khroniozukhii i biostratigrafii︠a︡ verkhnetatarskikh otlozheniĭ Vostochnoĭ Evropy po tetrapodam
Subjects: Fossil Amphibians, Paleontology
Places: Russia (Federation), Sukhona River Region, Vyatka River Region
Time periods: Permian, Triassic