(Translated by https://www.hiragana.jp/)
Category:Richmondian - Wikimedia Commons
Wikimedia Commons

Category:Richmondian

Paleozoic era
Cambrian Ordovician Silurian Devonian Carboniferous Permian
Terreneuvian
(lower
cambrian)		 Cambrian Series 2 Miaolingian Furongian
(upper
cambrian) 		Early Ordovician
(lower
ordovician)		 Richmondian
(middle
ordovician)		 Late Ordovician
(upper
ordovician) 		Llandovery Wenlock Ludlow Pridoli Early Devonian Middle Devonian Late Devonian Mississippian Pennsylvanian Cisuralian Guadalupian Lopingian
(upper
permian)
Fortunian Cambrian Stage 2 Cambrian Stage 3 Cambrian Stage 4 Wuliuan Drumian Guzhangian Paibian Jiangshanian Cambrian Stage 10 Tremadocian Floian Dapingian Darriwilian Sandbian Katian Hirnantian Rhuddanian Aeronian Telychian Sheinwoodian Homerian Gorstian Ludfordian Lochkovian Pragian Emsian Eifelian Givetian Frasnian Famennian Tournaisian
(lower
mississippian)		 Viséan
(middle
mississippian)		 Serpukhovian
(upper
mississippian) 		Bashkirian
(lower
pennsylvanian)		 Moscovian Kasimovian
(middle
pennsylvanian)		 Gzhelian Asselian Sakmarian Artinskian Kungurian Roadian Wordian Capitanian Wuchiapingian Changhsingian
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