Krevyakinskian Russian Stage
From 306.5 +/- 1 To 306 Ma
Start Defined By: Near base of Obsoletes obsoletes and Protriticites
pseudomontiparus fusulinid zone, or lowest occurrence of Parashumardites
ammonoid.
Start Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Paleozoic (542 - 251)
Period: Carboniferous (359.2 - 299)
Epoch: Pennsylvanian (318.1 - 299)
Sub-Epoch: Late Pennsylvanian (306.5 - 299)
ICS Stage: Kasimovian (306.5 - 303.9)
Chinese Stage: Mapingian (310 - 299)
European Epoch: Silesian (326.4 - 299)
European Stage: Stephanian (306.5 - 299)
North American Stage: Missourian (306.5 - 305)
-- Preceeded By --
Sub-Epoch: Middle Pennsylvanian (311.7 - 306.5)
ICS Stage: Moscovian (311.7 - 306.5)
European Stage: Westphalian (315 - 306.5)
North American Stage: Desmoinian (308 - 306.5)
Russian Stage: Myachkovskian (307.2 - 306.5)
-- Followed By --
Russian Stage: Chamovnicheskian (306 - 305)
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