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Bob Williams replied to the topic Rock vs. Fossil Tips in the forum What Is It? 1 year, 5 months ago
1 year, 5 months ago1 year, 5 months agoYour tips for telling a rock from a fossil are great. I also tell new collectors to look for symmetry. Any shape that you see alongside a mirror image of itself could be a fossil. Bilateral symmetry is just one kind. There is also radial symmetry like you see on a cross-section of many round fossils like crinoid stems and echinoids. Symmetry can…[Read more]
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