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I polish a part of this limestone, have different shells and calcite in some parts around, I don't know how to explain a mineral yellow color than have too the rock, it's part of the fossils too? Is probable than the fossils are Ma. Years old? What's the shape origin of this rock with sea fossils? because the rock have a special form than is natural! (I only polish to see the fossils inside). Thank for helps.
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Hello friends, I need your help to learn a little more, I am not an expert in trilobites, in fact what I own are the Brachiopods, but accommodating my fossils, I found myself very similar and they filled me with doubts, can you could help me distinguish between an interstricted Peronopsis and a Ptychagnostus atavis, both of the Upper Cambrian, of the Wheeler Formation, in House Range, Millard county, Utah. Thank you.
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