Paibian Age Miaolingian Epoch furong furong Jiangshanian Age Furogiense Ordovician Period Furong Furong Furong Furong Tremadocian Age Furongian Epoch Cambrian Stage 10 Age Phanerozoic Eon furongi Cambrian Period Furongien Furongien a1.1.3.6.1 Early Ordovician Epoch younger bound -485.4 +|-1.9 Ma 芙蓉世 Paleozoic Era Guzhangian Age Furongian Furongiën furongij furongiano Furongis Furongiano Geologic Time Scale (2018) Furongium Furongium フロンギアン世 older bound -497 Ma Base of Furongian Фуронг Base of Ordovician