What percentage of rocks within Earth's history are almost completely devoid of fossils?

Precambrian era which means "Before the Cambrian period". Geologists have found that there are some hard to discern fossils in some Precambrian rocks. Precambrian covers almost 90% of the entire history of the Earth whereby 88% of rocks are almost completely devoid of fossils which has been divided into three eras: The Hadean, The Archean and The Proterozoic

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codedmog101 codedmog101 · Answer 2 · 2020-01-05T20:51:32+01:00

Answer:the Precambrian, more than 80 Percent. 88 percent to be precise.

Explanation:

Precambrian era existed since the creation of earth. That is, ''pre'' meaning 'before'' the Cambrian. The Cambrian period is about 541 million years ago.

All life-forms were long assumed to have originated in the Cambrian, hence, all the rocks earlier are grouped into Precambrians- completely devoid of fossils.

The Precambrian consist of the archean and the proterozoic eons which are geologic intervals that lasted for about four millions to about five-hundred and fourty-one millions years ago.

The Precambrian covers almost 90% of the entire history of the Earth. The Precambrian Era consist of all of the geologic time before six(6) million years ago(that is; like about 4.6 billion years ago).

Majority of the fossils in the Precambrian time are being stromatolites that is, they are often deeply buried.