Pippa Posted April 25, 2020 Share Posted April 25, 2020 Hi all, Could this be a badly worn rugose colonial coral? My guess, due to what looks like calyces, vs. more typical corallites. Does anyone recognize this? Length is 3cm. Found in Lake Michigan, IL, Wenlock epoch, Racine formation. TIA to all! This area has been a bit better protected and appears a tad less worn: Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted April 25, 2020 Share Posted April 25, 2020 Yes, that's a colonial coral and, as I'm pretty sure those are columellae, a rugose one. 4 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Pippa Posted April 25, 2020 Author Share Posted April 25, 2020 Agreed. I think a columella is more or less visible within each calyx, but the septa and fossula are not. Thank you, Tidgy's Dad! 1 Link to comment Share on other sites More sharing options...
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