Geological units


Cambrian Series 2 (Cambrian )

Cambrian Series 3 (Cambrian )

Cambrian Stage 10 (Cambrian / Furongian )

Cambrian Stage 2 (Cambrian / Terreneuvian )

Cambrian Stage 3 (Cambrian / Cambrian Series 2 )

Cambrian Stage 4 (Cambrian / Cambrian Series 2 )

Cambrian Stage 5 (Cambrian / Cambrian Series 3 )

Campanian (Cretaceous / Upper Cretaceous )

Capitanian (Permian / Guadalupian )

Carboniferous

Carnian (Triassic / Upper Triassic )

Cenomanian (Cretaceous / Upper Cretaceous )

Changhsingian (Permian / Lopingian )

Chattian (Paleogene / Oligocene )

Cisuralian (Permian )

Coniacian (Cretaceous / Upper Cretaceous )

Cretaceous

Cryogenian (Proterozoic / Neoproterozoic )

Danian (Paleogene / Paleocene )

Dapingian (Ordovician / Middle Ordovician )