Has evolution been proven ?

You know what is sometimes depressing in some of these posts? Some people who have no training or knowledge in certain areas, yet feel free to make statements which only show their ignorance of such matters.As a geologist with a Masters degree in Petroleum Geology, I can tell you that petroleum does not necessarily accumulate in the same area as it was formed. Petroleum migrates through pores in rocks to usually low pressure structural traps. Thus it does not need a chunk of plant material of 9 cubic miles size to form the large petroleum reservoir in Iran. There is no "12mile x 12 mile x 1000 deep hole" in which the petroleum is contained.The necessary plant and animal material from which the petroleum was formed, may have been originally a thin layer or multiple layers spread over a vast area. It then migrated to its present location.

Ediacara Hills, AustraliaSee the above site.

If you do a search on the web you will find many references to Precambrian fossils. Most of these are from reputable scientific establishments.If you want to follow these up you can. Or you can visit a museum. You may learn something.I have seen Precambrian fossils. I do not have to prove it to myself.