Odd Rocks Posted July 23 Share Posted July 23 There is clearly a stem-end, but there is no mouth or anus and the substance of the gut is gone, replaced with these crystals that sparkle as you rotate the piece, but I can;t seem to get the discoloring off of them. This was found in a seasonal creek bottom below the till site. Like the others, these come out of a layer of glacial till found near the top of the Ohio Valley Knobs (~920’ elev.), Indiana side, near Louisville. I’m sorry I don’t have layers to date any of these. If you’d like different angles or magnification, please ask. Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 23 Share Posted July 23 At nearly 6 inches, this would be a pretty huge echinoderm. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "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...
Odd Rocks Posted July 23 Author Share Posted July 23 What else makes heads like that attached to a stem? Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 23 Share Posted July 23 I suppose it could be some sort of lobolith. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "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...
Odd Rocks Posted July 23 Author Share Posted July 23 Isn’t that an echinoderm? Link to comment Share on other sites More sharing options...
Coco Posted July 23 Share Posted July 23 No. Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Pareidolia : here Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
FossilDAWG Posted July 23 Share Posted July 23 Camarocrinus was a float (modified root), attached to Scyphocrinus or a related crinoid. These are common in some Silurian and Devonian formation in Tennessee, such as the Ross Formation, and they could get pretty big, although I don't know about 6 inches. See here for lots of info. All that being said, I don't know if I find the "stem attachment" convincing. I am not confident identifying your specimen as an echinoderm. Don 1 Link to comment Share on other sites More sharing options...
ynot Posted July 23 Share Posted July 23 Looks like a hollow concretion to me. Link to comment Share on other sites More sharing options...
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