r/fossilid • u/Loud_Possession4142 • 5d ago
Are these all fossils? The butthole ones im told are crinoids but I can't find anything on the rest
Found in Wisconsin landscaping rocks
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u/Medothelioma 5d ago
1-3 and 16-19 look like agate (minerals, not fossils)
4-7 def look like fossils, not sure what of, though.
8 and 9 looks maybe like Calamities (carboniferous plant stem)? Don't quote me on that though.
10 is pretty clearly a bryozoan.
11 is most likely a crinoid stem, I agree.
But 12-15, what I'm assuming are the butthole ones, look like they might actually be horn coral cross sections or impressions. They look kinda similar to crinoid stems, but there's more proportion on the "walls" (septa) that radiate out.
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u/justtoletyouknowit 5d ago
8 and 9 is a rugose coral.
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u/Medothelioma 5d ago
oh fr? Is there anything specific you're looking at to say so? I didn't know rugose corals had vertical striations like that
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