You might want to read up on this experiment thats been running for the last 20 years demonstrating evolution in E. Coli
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http://myxo.css.msu.edu/ecoli/
In particular you might want to read into E.Coli evolving (Via mutation) the ability to utilise citrate
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http://myxo.css.msu.edu/ecoli/citrate2008/-
Bacteria make major evolutionary shift in the lab | New Scientist
As for claims that the fossil record doesn't support evolution that is a simple lie.
Edited by Asking, : No reason given.