Geological units


Darriwilian (Ordovician / Middle Ordovician )

Devonian

Drumian (Cambrian / Cambrian Series 3 )

Ectasian (Proterozoic / Mesoproterozoic )

Ediacaran (Proterozoic / Neoproterozoic )

Eifelian (Devonian / Middle Devonian )

Emsian (Devonian / Lower Devonian )

Eoarchean (Archaean )

Eocene (Paleogene )

Famennian (Devonian / Upper Devonian )

Floian (Ordovician / Lower Ordovician )

Fortunian (Cambrian / Terreneuvian )

Frasnian (Devonian / Upper Devonian )

Furongian (Cambrian )

Gelasian (Quarternary / Pleistocene )

Givetian (Devonian / Middle Devonian )

Gorstian (Silurian / Ludlow )

Guadalupian (Permian )

Guzhangian (Cambrian / Cambrian Series 3 )

Gzhelian (Carboniferous / Pennsylvanian )