I think the first two questions have been answered quite while but as for your last question, I think you are confused. I have several flower fossils in my house, supposedly from the early jurrasic period, I am a creationist so I am not in total agreement about the dating. I grew up in Southern Pennsylvania, and we found a lot of these in the slate, but the best one I have a bought one line, if you want one go to:
File Not Found.
If you want pictures go here:
http://www.taiwanfm.com.tw/fhall/flower.htmhttp://www.valentine.gr/fossil-flower_en.htmdepends on how far back you want to go.
and as for question two, basic logic should tell you that will happen, if I use a ruler that is marked as twelve inches and is really only eight inches long, then measure all the "unknowns" with that ruler, all of the measuremnts will agree. But that doesn't mean they are the right measurement. No one has ever said the WAY you measure is wrong, if you measure everything the same way, it will agree, it's the "unit of measurement" you are using that is in error.
If you do something wrong the same way, everytime, it it will always be wrong the same way. And since the development of most radiometric dating methods used each other to verify their own development, it was as if you used your ruler that was maker as twelve inches but really only eight inches long to make a jig, or a stencil, or a mold that are also supposed to measure, and then you wonder why they all have the same results wrong results. Strati dating, carbon dating and AR40/K-Ar are all based on the logic formula and a major part of that formula is in error, mostly having to do with consistancecy of processes, but if that "unit of measurement" error the same way then they all erroe in their measurement the same amount.