|
| Eras |
Periods |
Epochs/Series |
Life
on Earth |
C
E
N
O
Z
O
I
C |
Quaternary |
Recent/Holocene
Pleistocene |
Rise
and Dominance of
Man |
| Tertiary |
Pliocene
Miocene
Oligocene
Eocene
Paleocene |
Modern
Plants and
_____Animals Flurish_____
Rapid Development of
Mammals, Insects,
and Plants |
M
E
S
O
Z
O
I
C |
Cretaceous |
Gulfian
Comanchean
Coalhuilan |
Mass
Extinction
Last of the Great Dinosaurs
Last Ammonites
____Primitive Mammals____
Rise of Flowering Plants |
| Jurassic |
Upper
Jurassic
Middle Jurassic
Liassic |
First
Mammals and Birds
Diversification of Dinosaurs
Coniferous Trees |
| Triassic |
Upper
Triassic
Middle Triassic
Sythian |
The
Rise of Dinosaurs
Cycad-like Plants
Bony Fishes Develope |
P
A
L
E
O
Z
O
I
C |
Permian |
Upper
Permian
Lower Permian |
Greatest
Mass Extinction
Rise of Reptiles |
| Pennsylvanian |
Upper
Pennsylvanian
Middle Pennsylvanian
Morrowan |
Modern
Insects Develope
The Great Coal Deposites
Primitive Conifers, Seed Ferns |
| Mississippian |
Chesterian
Meramecian
Osagian
Kinderhookian |
Plants
Flurish on Land
Crinoids Build Massive Limestones
Climax of Shell-Crushing Sharks
Primitive Ammonites |
| Devonian |
Chautauquan
Senecan
Erian
Ulsterian |
Climax
of Brachiopods
First Amphibians
First Land Snails
Primitive Land Plants |
| Silurian |
Cayugan
Niagarian
Alexandrian |
First
Lungfishes
First Traces of Life on Land
Widespread Coral Reefs |
| Ordovician |
Cincinnatian
Champlainian
Canadian |
Climax
of Trilobites
First Fish Appear
First Appearence of many
Marine Invertebrates Groups |
| Cambrian |
Croxian
Albertan
Waucoban |
Trilobites
Dominate
Marine Invertebrates Flurish
and Diversify |
Proterozoic
Archeozoic |
Marine
Invertebrates Appear
First Signs of Life |