The difference in collecting fossils or artifacts is whether the finds are on the surface or in situ, (in the original place), and require excavation to extract. Like arrowheads found in a plowed field are from disturbed land could be picked up. Those same arrowheads found under 3 inches of dirt on a undisturbed hilltop would require permits because they are in-situ. Same with dinos.
A good explanation here...
http://www.tyrrellmuseum.com/research/fossils_law.htm
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This country was started by voyagers whose young lives were swept away by the currents of the rivers for ten cents a day... just for the vanity of the European's beaver hats. ~ Red Bullets
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It is when you walk alone in nature that you discover your strengths and weaknesses. ~ Red Bullets
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