New Members Hammerstine Posted July 15, 2022 New Members Share Posted July 15, 2022 I’m posting some pics of what I believe to be a cluster of Crinoid calyx. I’ve found a few such as these . All in a cluster and all seem to be covered in calcite. Looking forward to hearing what you think. It was found in a creek in Jefferson county Missouri. It is 5”x5”. The creek is amazing. I can’t describe it so I’ll post a few more pics. It’s been awhile since I’ve been such a rookie so bare with me. Thanks Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 15, 2022 Share Posted July 15, 2022 I'm not seeing the symmetry or morphology I would expect from an echinoderm like a crinoid calyx. Wait for other opinions, though. 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
JohnJ Posted July 15, 2022 Share Posted July 15, 2022 Posting size and a general location or geologic context would be very useful. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
New Members Hammerstine Posted July 15, 2022 Author New Members Share Posted July 15, 2022 A few pics of the creek. Link to comment Share on other sites More sharing options...
Northern Sharks Posted July 15, 2022 Share Posted July 15, 2022 I'm not seeing a crinoid calyx either, but I'd be getting my saw to get that gastropod/ ammonite. 2 There's no limit to what you can accomplish when you're supposed to be doing something else Link to comment Share on other sites More sharing options...
New Members Hammerstine Posted July 15, 2022 Author New Members Share Posted July 15, 2022 Well I don’t know what the fossils are exactly but I think I might have found what to call it . Fossiliferous limestone . Link to comment Share on other sites More sharing options...
cngodles Posted July 16, 2022 Share Posted July 16, 2022 I agree, not a calyx. They usually have many connected plates with geometric shapes. Yes, the gastropod and general look of the rock suggests that it’s limestone. With a rock hammer or other tools you may be able to find many more fossils at the location. Jefferson County surface rocks appear to be mostly Ordovician in age. That gastropod seems typical in morphology for genera that lived during that age, maybe something from the Platyceratidae family. Check the map below and compare with your location, as that age doesn’t cover 100% of the county (but most of it). http://members.socket.net/~joschaper/geo.html 1 Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
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