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The group of animalia (animals) did not fully form until the Cambrian period. There is evidence of simple life (single-celled) and small multi-celled life forms from before the Cambrian explosion.
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What marked the end of the Precambrian period?
The appearance of complex, multicellular animals.
How are animals from the Precambrian era generally characterized?
The animals in the Precambrian Period were soft bodied animals. This Era was dominated by single celled organisms: algae, bacteria. Also in existence were jellyfish, spiders, crabs, and worms.
Any precambrian tine animals and plants that have turned into fossils?
Yes, although the fossil record for the precambrian period is scarce. See related link.
Why is PreCambrian called PreCambrian?
Precambrian is BEFORE the Cambrian period!
Were there any weird animals in precambrian?
All the precambrian animals were weird ;P
What was the longest segment of the earth's history?
It was the Precambrian time period.
Why is the Precambrian time period segmented into very few parts?
The Precambrian time period is segmented into very few parts because:
Precambrian are fossils yes or no?
Precambrian is a geologic period that extends as back as 4.500 million years ago. Fossils are very rare from that period of time.
What was the Precambrian era's climate?
The Precambrian is a long period and just as Earth has many climates now, it had many then.
Was the crust solid in the Precambrian Eon?
Except for a short period when the Earth was molten, a solid crust had formed in the Precambrian.
When did Precambrian Time begin?
The Precambrian period was from 4600 million years ago to about 542 million years ago.
When did crinoids first appear?
it occurs in the precambrian period.
