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Over most of Precambrian time 80 percent of earths history-the only life forms are bacteria ,which appear about 3,500 million years ago. multiple-cells marine animals like spriggina appear at the end of the era

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Velda Hauck

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3y ago

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Was there an ice age in the precambrian time?

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Why is the shield also referred to as the Precambrian Shield?

Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.


What happened during precambrian time?

Over most of Precambrian time 80 percent of earths history-the only life forms are bacteria ,which appear about 3,500 million years ago. multiple-cells marine animals like spriggina appear at the end of the era


Why is the Canadian Shield also referred to as the Precambrian Shield?

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Why is the Canadian Shield also referred as the Precambrian Shield?

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Did plants colonized dry land during the precambrian time?

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155.92yrs


Cyanobacteria are as significant to this process today as they were during precambrian time?

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