mateosfossils Posted December 1, 2022 Share Posted December 1, 2022 This was found in southwest Wisconsin. All the other creatures I'm finding are sea creatures. I know nothing about fossils but something tells me this isn't a mushroom lol. 1 Link to post Share on other sites
Kane Posted December 1, 2022 Share Posted December 1, 2022 Looks to be a crinoid. 1 6 Link to post Share on other sites
Fossildude19 Posted December 1, 2022 Share Posted December 1, 2022 I would go with Crinoid calyx and partial stem as well. 1 4 Link to post Share on other sites
Rockwood Posted December 1, 2022 Share Posted December 1, 2022 9 minutes ago, Fossildude19 said: Crinoid calyx Some assembly required. Most of the calyx is scattered in pieces isn't it ? 1 Link to post Share on other sites
Fossildude19 Posted December 1, 2022 Share Posted December 1, 2022 1 minute ago, Rockwood said: Some assembly required. Most of the calyx is scattered in pieces isn't it ? Or the plates are worn away. 1 Link to post Share on other sites
Ludwigia Posted December 1, 2022 Share Posted December 1, 2022 Lots of brachiopod shells on that plate as well. 1 1 Link to post Share on other sites
Tidgy's Dad Posted December 1, 2022 Share Posted December 1, 2022 Yup, bits of strophomenid, I think. 1 Link to post Share on other sites
Northern Sharks Posted December 1, 2022 Share Posted December 1, 2022 I was thinking a small piece of cephalopod with the siphuncle and one or two chambers showing. I have a similar scenario, albeit much larger, from my area. 1 1 Link to post Share on other sites
jpc Posted December 1, 2022 Share Posted December 1, 2022 The first two pix are of a crinoid calyx. An excellent basement excavation find. 1 1 Link to post Share on other sites
Fossildude19 Posted December 1, 2022 Share Posted December 1, 2022 12 minutes ago, Northern Sharks said: I was thinking a small piece of cephalopod with the siphuncle and one or two chambers showing. I have a similar scenario, albeit much larger, from my area. I agree, this is a possibility as well. Thanks for weighing in, Kevin. 1 Link to post Share on other sites
Rockwood Posted December 1, 2022 Share Posted December 1, 2022 8 minutes ago, Northern Sharks said: I was thinking a small piece of cephalopod with the siphuncle and one or two chambers showing. I have a similar scenario, albeit much larger, from my area. If the flared shape were a septum robust enough to preserve in this way it seems like there would be other remnants of septa seen further up. On the other hand it is an odd texture for crinoid columnals. 1 1 Link to post Share on other sites
jpc Posted December 2, 2022 Share Posted December 2, 2022 I will defer my crinoid ID to the good folks here who know their Paleozoic fossils much better than I do. Link to post Share on other sites
ClearLake Posted December 2, 2022 Share Posted December 2, 2022 My first thought on seeing the pictures was also cephalopod with exposed siphuncle as I have collected some similar ones. I think I see hints of additional septa in the thick part, but I could just be wishing them into existence. A view of the end of the skinny part could help determine, especially if we see the crinoid columnal pattern (lumen, etc) there. But the preservation could be too poor to see much of anything, even if you could get a good picture of it. 1 Link to post Share on other sites
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