Odd Rocks Posted July 23 Share Posted July 23 I’m 99% sure these two odd rocks are the same species. My guess is some kind of Rugosa coral based on the size of the mouth opening, but that’s just a noob’s guess. 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. 1 Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 23 Share Posted July 23 Looks similar to Acrocyathus. 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 They are missing the axial boss that is characteristic of Acrocyathus, but I think rugosa is the right direction given the size of the calyx and presence of septa. Link to comment Share on other sites More sharing options...
Odd Rocks Posted July 23 Author Share Posted July 23 Actually, looking at the very first pic, I do see that axial boss. Link to comment Share on other sites More sharing options...
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