TABLE OF STRATIGRAPHICAL SYSTEMS
Reading edition
Quaternary Group
Post-Pliocene and Recent
Cainozoic Group
Pliocene Miocene Oligocene Eocene
Mesozoic Group
Cretaceous Jurassic Triassic
Palæozoic Group
Permian Carboniferous Devonian Gotlandian (= Silurian or Upper Silurian) Ordovician (or Lower Silurian) Cambrian
Pre-Cambrian Group