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Showing results for tags 'overburden'.
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Keewatin, MN, USA. Overburden pile from local iron mine. So I believe these to NOT be glacial erratics like my other fossils, which would be a first for me!!! Some obviously seem like clams of some sort, but what I stood out to me the most was the holes and subsequent worm-like things inside, most of which were loose enough to remove (albeit I broke most of them). My guess is they’re some kind of worms, any thoughts?
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Found this at a spot I was told there was shark teeth. Spotted this, it stood out to me, not sure if it’s a fossil, but it does pass the lick test. I’ve only rinsed it off and given it a scrub with a toothbrush, so it’s pretty rough. Also it’s wet in the pics.