10 wi uniloiTO >«--utH 1 lw>ur»-40,000 vca»
COSMIC TIME |
AGE IN MILLIONS Ot \] \HS |
EPOCIIS.-' GEO LOGIC AL SYSTEMS Mjximum thickncss in fcct |
TIME RANGES OF LIFE GRO U PS | ||||||||
1.7 days |
1 15 |
FLIOCENE 18,045 ft. |
-* MAN | ||||||||
i munth |
35 |
MIOCENE 20.997 ft |
>• < | ||||||||
2 months |
43 |
OL1GOCENE I4,7fi4 ft. |
H X w |
< Z | |||||||
mnnths |
75 |
EOCF.NE 22(9b5 ft. |
tg |
*. < Z t | |||||||
fi mnnths 7 mnnths |
140 |
CRETACEOUS 63.976 ft. |
W w s |
1 E 5 A |
ae E t | ||||||
B mnnths |
170 |
JUR A.SS1C. 21,982 ft. |
a u * |
T | |||||||
y months |
195 220 |
TRIASSIC 24,606 ft |
Bfl u < |
< S | |||||||
1 yrar |
PERMIAN 18,045 ft. |
z z < |
GL 9 t | ||||||||
273 |
CARBON1FEROUS 39,370 ft. |
te h |
H S£ as u H X tu > |
7 t | |||||||
320 350 |
DEVONlAN 37,073 ft. |
w |
Z < mi tm | ||||||||
SILUR1AN 20.013 ft. |
s W - ■J < |
a z < mi |
s 7 | ||||||||
1.5 ycars |
420 |
ORDOVICIAN 39,370 ft |
T |
- tu p < u K T | |||||||
2 ycars |
520 |
CAMBRIAN 39f370 ft | |||||||||
9 ycars |
2000 |
PRECAMBRIAN Unknown thickncss |
z u u X |
t
20 jfar»*ł.ł Milion wliir jrtini