PBDB Interval Range

313.8 - 307 Ma

International Chronostratigraphic Timescale			Carbo-Permian of the Russian Platform
				287.6
Carboniferous	Pennsylvanian	Gzhelian	Rusavkinian	298.9 *
		Kasimovian	Dorogomilovian	303.7
			Khamovnikian	304.8
			Krevyakinian	305.8 *
		Moscovian	Myachkovian	307
			Podolskian	308.9 *
			Kashirian	311.46 *
			Vereian	313.8
			Melekessian	314.8
		Bashkirian	Melekessian	315.2
			Cheremshanian	317
			Prikamian	318.7
			Severokeltmian	320
			Krasnopolyanian	321.4
			Voznesenian	322.1
	Mississippian	Serpukhovian	Zapaltjubian	323.4
			Protvian	324.5 *
			Steshevian	326.9 *
			Tarusian	329.1 *
		Visean	Venevian	330.3
			Mikhailovian	332 *
			Aleksinian	333.8 *
			Tulian	335.9 *
			Bobrikian	339.9 *
			Radaevkian	343.4 *
		Tournaisian	Kosvian	346.7
			Kizelian	350.7 *
			Cherepetian	351.9 *
			Karakubian	354.4 *
			Upinian	356.3 *
			Malevkian	357.6 *
			Gumerovian	358 *
				358.86