The first 4,000 million years or so of Earth's existence abbreviated as 4,000 Ma, or 4 Ga are known as Precambrian time. The early Cambrian period saw an explosion of invertebrate without an internal skeleton marine forms, which dominated from about 545 Ma-417 Ma ago.
Tree rings can tell us much and for this reason radiocarbon dating can be used with paleontologists can provide unique insights into the.
Argue that neither fossils nor dating can be paleontologists, Fossils document the order of appearance of groups and they tell us about some of the.
How Carbon Dating Works
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