宙 |
代 |
紀 |
時間,億年前
|
冥古宙(Hadean) |
隱生代(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) |
成鐵紀(Siderian) |
25~23
|
|
|
層侵紀(Rhyacian) |
23~20.5
|
|
|
造山紀(Orosirian) |
20.5~18
|
|
|
固結紀(Statherian) |
18~16
|
|
中元古代(Mesoproterozoic) |
蓋層紀(Calymmian) |
16~14
|
|
|
延展紀(Ectasian) |
14~12
|
|
|
狹帶紀(Stenian) |
12~10
|
|
新元古代(Neoproterozoic) |
拉伸紀(Tonian) |
10~8.5
|
|
|
成冰紀(Cryogenian) |
8.5~6.34
|
|
|
震旦紀(Sinian) |
6.34~5.42
|
顯生宙(Phanerozoic) |
古生代(Paleozoic) |
寒武紀(Cambrian) |
5.43~4.63
|
|
|
奧陶紀(Ordovician) |
4.63~4.35
|
|
|
志留紀(Silurian) |
4.35~4.1
|
|
|
泥盆紀(Devonian) |
4.1~3.5
|
|
|
石炭紀(Carboniferous) |
3.5~3
|
|
|
二疊紀(Permian) |
3~2.5
|
|
中生代(Mesozoic) |
三疊紀(Triassic) |
2.5~2.08
|
|
|
侏羅紀(Jurassic) |
2.03~1.41
|
|
|
白堊紀(Cretaceous) |
1.41~0.65
|
|
新生代(Cenozoic) |
古近紀(Paleogene) |
0.65~0.25
|
|
|
新近紀(Neogene) |
0.25~
|