time of periods Flashcards
1
Q
precambrian
A
541-4600 mya
2
Q
proterozoic
A
541-2500 mya
3
Q
archean
A
2500-4000
4
Q
neo-proterozoic
A
541-1000 mya
5
Q
meso-proterzoic
A
1000-1600 mya
6
Q
paleo-proterozoic
A
1600-2500 mya
7
Q
ediacaran
A
541-635 mya
8
Q
cryogenian
A
635-720 mya
9
Q
tonian
A
720-1000 mya
10
Q
stenian
A
1000-1200 mya
11
Q
ectasian
A
1200-1400 mya
12
Q
calymmian
A
1400-1600 mya
13
Q
statherian
A
1600-1800 mya
14
Q
orosirian
A
1800-2050 mya
15
Q
rhyacian
A
2050-2300
16
Q
siderian
A
2300-2500
17
Q
neo-archean
A
2500-2800 mya
18
Q
meso-archean
A
2800-3200 mya
19
Q
paleo-archean
A
3200-3600 mya
20
Q
eo-archean
A
3600-4000 mya
21
Q
hadean
A
4000-4600 mya
22
Q
phanerozoic
A
present-541 mya
23
Q
mesozoic
A
66-252 mya
24
Q
jurassic
A
145-201 mya
25
triassic
201-251 mya
26
cretaceous
66-145 mya
27
cenezoic
present-66 mya
28
quaternary
present-2.5 mya
29
neogene
2.5-23 mya
30
paleogene
23-66 mya
31
paleozoic
252-541
32
permian
252-299 mya
33
carboniferous
299-359 mya
34
devonian
359-419 mya
35
silurian
419-444 mya
36
ordovician
444-485 mya
37
cambrian
485-541
