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下奥陶世 距今4亿8500万年前 ~距今4亿7000万年前 (1 gen 485290000 anni a. C. – 18 ottob 470000000 anni a. C.)

Aggiunto al nastro di tempo:

地球地质年代表

By徐康
8 feb 2020
1
0
1126

Data:

1 gen 485290000 anni a. C.
18 ottob 470000000 anni a. C.
~ 5883516 years
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