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Re: Biological Origin of Earliest Fossils Substantiated



In message <Pine.GSO.4.10.10203141919030.22054-100000@asuwlink.uwyo.edu>, Richard W Travsky <rtravsky@uwyo.edu> writes

http://www.sciencedaily.com/releases/2002/03/020313080230.htm

UCLA paleobiologist J. William Schopf and colleagues have substantiated
the biological origin of the earliest known cellular fossils, which are
3.5 billion years old. The research is published in the March 7 issue of
the journal Nature. Schopf and a team of scientists at the University of
Alabama, Birmingham have devised a new technique using a unique
laser-Raman imaging system that enables them to look inside of rocks and
determine what they are made of, providing a molecular map.

[Snipped the rest of the article]

This claim has been disputed in the same issue of Nature. See:

Brasier M D, Green O R, Jephcoat A P, Kleppe A K, Van Kranendonk M J, Lindsay J F, Steele A, Grassineau N V, Questioning the evidence for Earth's oldest fossils, Nature 2002; 416: 76-81

Also : Gee H, That's life?, Nature 2002; 416: 28

--
Gautam Majumdar