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Archaean

Archaean

(Science: geology) The earliest period in geological period, extending up to the Lower silurian. It includes an azoic age, previous to the appearance of life, and an eozoic age, including the earliest forms of life.

this is equivalent to the formerly accepted term azoic, and to the eozoic of Dawson.


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Re: are the horse and chicken related?

... the 5 kingdom system, but some do as far back as the 70's. The point is that they are genetically worlds apart. Cyanobacteria (found in the Archaean age--supposedly when life first appeared) are found to be the oldest known fossils, found in archaean age rocks from Australia dated at 3.5 ...

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by AFJ
Mon Feb 23, 2009 3:35 pm
 
Forum: Evolution
Topic: are the horse and chicken related?
Replies: 13
Views: 3125


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