Devonian Paleozoic Era Devoon Early Mississippian Epoch Phanerozoic Eon Lochkovian Age Dévonien Devonian Period 泥盆纪 Emsian Age Famennian Age devoniano Geologic Time Scale (2019) older bound -419.2 +|-3.2 Ma Pragian Age Devónico Devónico Pridoli Epoch Devon Devon Devon Devon Devon Devonas Mississippian Sub-period Devoni Middle Devonian Epoch Givetian Age Frasnian Age Silurian Period younger bound -358.9 +|-0.4 Ma devón Base of Devonian devon devon Early Devonian Epoch devon Late Devonian Epoch Tournaisian Age Carboniferous Period Base of Carboniferous Dewon Eifelian Age Девон デボン紀 a1.1.3.3