宙 |
代 |
纪 |
时间,亿年前
|
冥古宙(Hadean) |
隐生代(Cryptic) |
|
46~42
|
|
原生代(Basin-groups) |
|
42~40
|
|
代(Nectarian) |
|
40~39
|
|
早雨海代(Lower-imbrian) |
|
39~29
|
太古宙(Archean) |
始太古代(Eoarchean) |
|
38~36
|
|
古太古代(Paleoarchean) |
|
36~32
|
|
中太古代(Mesoarchean) |
|
32~28
|
|
新太古代(Neoarchean) |
|
28~25
|
元古宙(Proterozoic) |
古元古代(Paleoproterozoic) |
成铁纪(Siderian) |
25~23
|
|
|
层侵纪(Rhyacian) |
23~20.5
|
|
|
造山纪(Orosirian) |
20.5~18
|
|
|
固结纪(Statherian) |
18~16
|
|
中元古代(Mesoproterozoic) |
盖层纪(Calymmian) |
16~14
|
|
|
延展纪(Ectasian) |
14~12
|
|
|
狭带纪(Stenian) |
12~10
|
|
新元古代(Neoproterozoic) |
拉伸纪(Tonian) |
10~8.5
|
|
|
成冰纪(Cryogenian) |
8.5~6.34
|
|
|
震旦纪(Sinian) |
6.34~5.42
|
显生宙(Phanerozoic) |
古生代(Paleozoic) |
寒武纪(Cambrian) |
5.43~4.63
|
|
|
奥陶纪(Ordovician) |
4.63~4.35
|
|
|
志留纪(Silurian) |
4.35~4.1
|
|
|
泥盆纪(Devonian) |
4.1~3.5
|
|
|
石炭纪(Carboniferous) |
3.5~3
|
|
|
二叠纪(Permian) |
3~2.5
|
|
中生代(Mesozoic) |
三叠纪(Triassic) |
2.5~2.08
|
|
|
侏罗纪(Jurassic) |
2.03~1.41
|
|
|
白垩纪(Cretaceous) |
1.41~0.65
|
|
新生代(Cenozoic) |
古近纪(Paleogene) |
0.65~0.25
|
|
|
新近纪(Neogene) |
0.25~
|