Paleogen
| Zaman Paleogen 66–23.03 juta tahun dahulu | |
| Purata kandungan O2 atmosfera selama tempoh zaman | c. 26 vol % (130 % daripada aras moden) |
| Purata kandungan CO2 atmosfera selama tempoh zaman | c. 500 ppm (2 kali aras pra-perindustrian) |
| Purata suhu permukaan selama tempoh zaman | c. 18 °C (4 °C di atas aras moden)
|
Zaman Paleogen ialah zaman dan sistem geologi yang bermula pada 66 dan berakhir pada 23.03 juta tahun lalu dan merangkumi bahagian pertama Era Cenozoic.[1]
Nota[sunting | sunting sumber]
- ^ Formerly the period covered by the Paleogene was called the first part of the Tertiary, whose usage is no longer official. "Whatever happened to the Tertiary and Quaternary?"
Pautan luar[sunting | sunting sumber]
 |
Wikimedia Commons mempunyai media berkaitan Paleogen |