Global Temperature Data for the past 550 million years. Phanerozic Era
Source; R.A. Berner, 2001 (Geo carb II)
|
Era |
Millions of years before the present |
Avg. Global Temperature oC |
Geologic Period |
|
|
0 |
12 |
|
|
|
25 |
15 |
|
|
|
50 |
13 |
|
|
|
75 |
17 |
Pangaea breakup |
|
|
100 |
21 |
Cretaceous |
|
|
125 |
17 |
|
|
|
150 |
16 |
|
|
|
175 |
16 |
|
|
|
200 |
16.5 |
Triassic |
|
|
225 |
17 |
|
|
|
250 |
17.5 |
|
|
|
275 |
19 |
|
|
|
300 |
15 |
Carboniferous |
|
|
325 |
13 |
|
|
|
350 |
15 |
|
|
|
375 |
19 |
|
|
|
400 |
19.5 |
|
|
|
425 |
15 |
|
|
|
450 |
11 |
Silurian |
|
|
475 |
15 |
|
|
|
500 |
20 |
|
|
|
525 |
18 |
|
|
|
550 |
17 |
|
|
|
|
|
|
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