PRECAMBRIAN
|
| Eon |
Era |
Millon years |
| Archean |
Early |
3400 & + |
| Middle |
3000-3400 |
| Late |
2500-3000 |
| Proterozoic |
Early |
1600-2500 |
| Middle |
900-1600 |
| Late |
570- 570 |
PALEOZOIC
|
| Period |
Epoch |
Age |
Millon years |
| Cambrian |
Early |
540 - 570 |
| Middle |
523 - 540 |
| Late |
Dresbachian
Franconian
Trempealeauan |
505 - 523 |
| Ordovician |
Early |
Tremadocian |
488 - 505 |
| Arenigian |
478 - 488 |
| Middle |
Llanvirnian |
468 - 478 |
| Llandeilan |
458 - 468 |
| Late |
Caradocian |
448 - 458 |
| Ashgillian |
438 - 448 |
| Silurian |
Early |
Llandoverian |
428 - 438 |
| Wenlockian |
421 - 428 |
| Late |
Ludlovian |
414 - 421 |
| Pridolian |
408 - 414 |
| Devonian |
Early |
Gedinnian |
401 - 408 |
| Siegenian |
394 - 401 |
| Emsian |
387 - 394 |
| Middle |
Eifelian |
380 - 387 |
| Givetian |
374 - 380 |
| Late |
Frasnian |
367 - 374 |
| Famennian |
360 - 367 |
| Carboniferous |
Mississippian |
Tournaisian |
352 - 360 |
| Visean |
333 - 352 |
| Serpukhovian |
320 - 333 |
| Pennsylvanian |
Bashkirian |
308 - 320 |
| Moscovian |
294 - 308 |
Kasimovian
Gzelian |
286 - 294 |
| Permian |
Early |
Asselian
Sakmarian |
268 - 286 |
| Artinskian |
263 - 268 |
| Kungurian |
258 - 263 |
| Late |
Ufimian
Kazanian |
253 - 258 |
| Tatarian |
245 - 253 |
|
MESOZOIC
|
| Period |
Epoch |
Age |
Millon years |
TRIASSIC
|
Early |
Scythian |
240 - 245 |
| Middle |
Anisian |
235 - 240 |
| Ladinian |
230 - 235 |
| Late |
Carnian |
225 - 230 |
| Norian |
208 - 225 |
JURASSIC
|
Early |
Hettangian |
204 - 208 |
| Sinemurian |
198 - 204 |
| Pliensbachian |
193 - 198 |
| Toarcian |
187 - 193 |
| Middle |
Aalenian |
183 -187 |
| Bajocian |
176 -183 |
| Bathonian |
169 -176 |
| Callovian |
163 -169 |
| Late |
Oxfordian |
156 - 163 |
| Kimmeridgian |
152 - 156 |
| Tithonian |
144 - 152 |
CRETACEOUS
|
Early |
Berriasian |
138 - 144 |
| Valanginian |
131 - 138 |
| Hauterivian |
124 - 131 |
| Barremian |
119 - 124 |
| Aptian |
113 - 119 |
| Albian |
97.5- 113 |
| Cenomanian |
91.0-97.5 |
| Late |
Turonian |
88.5-91.0 |
| Coniacian |
87.5-88.5 |
| Santonian |
84.0-87.5 |
| Campanian |
74.5-84.0 |
| Maastrichtian |
66.4-74.5 |
CENOZOIC
|
TERTIARY
|
Paleocene |
Danian |
63.6-66.4 |
| Selandian |
57.8-63.6 |
| Eocene |
Ypresian |
52.0-57.8 |
| Lutetian |
43.6-52.0 |
| Bartonian |
40.0-43.6 |
| Priabonian |
36.6-40.0 |
| Oligocene |
Rupelian |
30.0-36.6 |
| Chattian |
23.7-30.0 |
| Miocene |
Aquitanian |
21.5-23.7 |
| Burdigalian |
16.6-21.8 |
| Langhian |
15.1-16.6 |
| Serravallian |
11.2-15.1 |
| Tortonian |
6.5-11.2 |
| Messinian |
5.3-6.5 |
| Pliocene |
Zanclean |
3.4-5.3 |
|
Piacenzian |
1.6-3.4 |
| QUATERNARY |
Pleistocene |
Calabrian |
0.01-1.6 |
| Holocene |
to - 0.01 |
|
