Tunguska Series  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...upper Paleozoic
 ....Tunguska Series
RTRussian Federation
SNComposed of 2 sections (ascending): productive section with coal beds and a section of tufa containing intercalary beds of normal sedimentary rock. In Tunguska Basin of central Siberia.