————————-+——————————-+——————+—————————————-+———————————————————-+——————
| | | Strata | Fossils, Bones, | Man’s
| | | Deposits | etc Found |Ascent
| | +—————————————-+———————————————————-+——————
| | IRON | Recent Earth |Historic Era |
| RECENT | AGE | Deposits |Manufacture of Iron |Homo
| | | | Articles |Sapiens
| +——————+—————————————-+———————————————————-+——————
| |BRONZE|Recent Earth |Considerable advance|Homo
| |AGE | Deposits |in civilization. |Cultus
| | | |Manufactureof Bronze|
| | | | implements |
+——————————-+——————+—————————————-+———————————————————-+——————
|POST- |NEO- | Glacial |Remains of Lake |Homo
|PLEIOCENE |LITHIC| Deposits |Dwellings. Manu- |Semi-
| | | |facture of Pottery |ferox
KAINOZOIC|QUATERNARY +——————+—————————————-+———————————————————-+——————
OR | OR |PALÆO-| Glacial |Fossil Cave-men, |Homo
TERTIARY |PLEISTOCENE|LITHIC| Deposits |Stone, bone, + horn |Ferox
| | | |implements. Mammoth |
| | | |Reindeer, Hyœna, etc.|
+——————————-+——————+—————————————-+———————————————————-+——————
|PLEIOCENE |White and Red Crags |Apes, Bears & Hyœnas|Alali
| | of Britain | |Anthro-
| | | | pœdæ
+——————————-+—————————————————————+———————————————————-+——————
|MEIOCENE |Arctic Coal, |Marsupials, |
| |Limestone, Sands, |Squirrels, Mastodon,|Meno-
| |Clays, and Lignites |Rhinoceros, | cerca
| | |Anthropomorphous |Simiæ
| | |Apes |
+——————————-+—————————————————————+———————————————————-+——————
|EOCENE |Sandstone, Limestone,|Equine forms, Bats, |Prosimiæ
| |Sands, Clays, Marls, |Lemurs, Marsupials |Placent-
| |Lignites, Coral, Rag | |alia
————————-+——————————-+————————————————————-+———————————————————-+——————
|CRETACEOUS |Clays, Sands, Soft |Birds, Reptiles and |Marsup-
| |Limestones, Lignites |Marsupials |ialia
+——————————-+————————————————————-+———————————————————-+——————
MESOZOIC |JURASSIC |Limestones, Coral |Bird-reptiles, |Marsup-
OR | OR |rags, Clays, Marls, |several Marsupial |ialia
SECONDARY|OÖLITIC |Coal Lies at base |species |
+——————————-+————————————————————-+———————————————————-+——————
|TRIASSIC |Sandstones, |Gigantic Reptiles, |Promamm
| |Limestones, Clays |Small Marsupials |alia
————————-+——————————-+————————————————————-+———————————————————-+——————
|PERMIAN |Marls, Magnesian | Reptiles |Protam-
| |limestones, Conglomerates.| |nia
+——————————-+————————————————————-+———————————————————-+——————
|CARBONI- |Carboniferous limestone,|Scorpions, |Urodela
| FEROUS |Coal, Ironstone, |Spiders, Beetles,|Sozo-
| |Sandstone, Clay, Shales |Flies, Amphibia |branchii
+——————————-+————————————————————-+———————————————————-+——————
|DEVONIAN |Old Red Sandstone, |Fossil land plants, |Dipnoi
| |Shales, Coralline |Fishes, First |Selachii
| |Limestone |fossil insect |
+——————————-+————————————————————-+———————————————————-+——————
|SILURIAN |Slates, Limestone, |Corals, Spiral |Monorrh-
PALÆOZOIC| |Conglomerates, |Shells, King-Crabs, |ini
OR | |Shales, Sandstones |Plates & Scales of |Acrania
PRIMARY | | |Fishes, Annelides |
| | |(sea-worms) |
+——————————-+————————————————————-+———————————————————-+——————
|CAMBRIAN |Slates, Limestone, |Sea-weeds, Sponges, |Himatega
| |Conglomerates, |Star-fishes Sea- |Turbell-
| | |lilies, Shell-fish, |aria
| | |First land plant |Gastrœada
+——————————-+————————————————————-+———————————————————-+——————
|HURONIAN |Partially Metamorphosed|Lowly organized |Ciliata
| |Limestone, Sandstone, |Molluscs |Synamœbæ
| |Slates, and Conglomerates| |Amœbæ
+——————————-+————————————————————-+———————————————————-+——————
|LAURENTIAN |Highly Metamorphosed |Fossil Foraminifera |Monera
| |Limestone | (Protozoa) |(Bioplasm)
————————-+——————————-+————————————————————-+———————————————————-+——————
AZOIC |PLUTONIC |Molten Granite & Quartz |No life remains |No life
| |Partially or Wholly | |
| |Igneous. Base of all rocks| |
————————-+——————————-+————————————————————-+———————————————————-+——————