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Showing results for tags 'madison'.
Found 11 results
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Each square is one centimeter. What is this mould of? Thank you!
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Are these cephalopods in chert? They appear to be agatized as well. The first two pictures are from a chunk of chert and agate that I split to find what looks like the chambers of a nautiloid cephalopod. Is this a fossil or just some way silica forms? Thanks so much!
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This looks similar to some jawless fish bone I’ve seen. Could this be some? Ordovician, Wisconsin, Dane county, Madison.
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I’ve been told these blastoids appear to be Mississippian and I have some questions
SilurianSalamander posted a topic in Fossil ID
I’ve been told these blastoids appear to be Mississippian in age. That surprises me because the rocks in Dane county Wisconsin are late Cambrian - early Ordovician and the nearest Carboniferous rocks are a long ways away. I’ve done some research into the history of the buildings on the UW Madison campus where I find these fossils and they were supposedly quarried only a few miles from where they now lie. I was also told that blastoids didn’t appear until the Carboniferous. From a quick google search I got the impression that, while they massively diversified in the Carboniferous, they first appeared during the Ordovician. I’m just confused and curious as to how old these rocks are. They’re packed full of fossils and I often find tiny fossils that have eroded out of them and fallen to the ground to collect. attatched are the 2 or 3 blastoids and some of the other fossils I’ve found in these rocks. Any help as to what the age could be would be wonderful! also any IDs on some of the other fossils more specific than “gastropod” or “cephalopod” or “crinoid” are also appreciated. Thank you so much! Y’all are great.
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Been finding a lot of these tiny spiral shells. While some are definitely gastropods this one looks similar to some forams I’ve seen. Would love to know which this one is! Thanks
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Hi all! I found this tiny fossil today. It is a bit under half a cm long at its longest point. I can only imagine this is an echinoid but some confirmation would be great! Found in some very fossiliferous rock on the UW Madison campus in Dane County Wisconsin, known for being late Cambrian - early Ordovician. No clue where this rock was quarried. Thanks so much!
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Grandkids found this and we have no idea what it is. Dogs dug it up
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Hello! Amateur and fossil noob here. I was wondering if you could help me to identify these two fossils from SE Indiana. The first I found at the railroad rock cut in Madison Indiana* (corrected location below) loose on the hillside as is. Crudely it looks like a twisted up starfish. The second I found in the Waldron Shale piles that the Falls of the Ohio State Park (Clarksville Indiana) sets out for guests like me to dig through. For the second, I wasn't sure if it was a small coral or part of a crinoid. Thanks in advance - I really appreciate your help. *EDIT - my mistake. The first I found in Crawford County IN (Sulfur/English/I-64 rock cut). I had visited a bunch of fossil sites in the area within a few days and mixed them up. Results in millions of years difference!
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Hi, I was going through some of my rocks and saw this one I found near Madison, Indiana. Most of the fossils I got from there were horn corals or brachiopods but the pattern on this fossil is different than what I usually see. Can anyone please help me identify it? Not sure if it is an imprint from a sponge or something else. Pictures show front, side and back. Thank you for your help!
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I found these in a quarry in Madison Wi. There were quite a few of these with different shapes and configurations of what look like bones to me. These were from a smallish pile at the bottom of the deepest part of the quarry and I would guess that are from lower down in the earth. I apologize if I am not using the proper language as I am very new to this. i have seen some sea bed rock from a different quarry, that has loads of shells, mollusks, and snails in them. This rock looks very different from the sea bed pieces I have. Are these bones? Is it chert? I was with two other people or I would have pulled every piece I could find off the piles to see if anything could be puzzled together, as these and the others were all in one area of the pile. If the pictures could be more helpful in different light etc, I will happily retake some. Thanks for any insight into them.
