The Proterozoic eon was the third eon in Earth history. It lasted from 2.5 billion years ago to 542 million years ago. Therefor, the Proterozoic was nearly 2 billion years long.
It is estimated that the Precambrian Era lasted between 3.9 and 4 billion years. Many scientists believe that this era accounts for 90 percent of the world's history.
Began 5 billion years ago
Most of Earth's history has occurred in the Precambrian Era, a time span of over 4 billion years.
it was on earth the precambrian era is an era that happend several million years ago on the earths surface
The Precambrian Era began in the time period 4600 and ended in 570.
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About 540 million years ago.
4,028,000,000 years.
The Precambrian. Hope this helps! :)
The Precambrian is a long period and just as Earth has many climates now, it had many then.
The Precambrian ... about 3 billion years.
Starting with the Precambrian Era. 4600 million to 570million years ago. Paleozoic Era. 570 million to 245 million years ago. Mesozoic Era. 245 million to 66 million years ago. Cenozoic era: 66 million years to Today.
Oldest to youngest*Precambrian Era*Paleozoic*Mesozoic*Cenozoic