Jondh Posted September 30, 2020 Share Posted September 30, 2020 It was found near Eminence, Missouri on a river bank. The pattern reminds me of a brachiopod, but has that strange frilly edge... Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 30, 2020 Share Posted September 30, 2020 Bryozoan would be my guess. That wavy margin is unusual looking. 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...
Plax Posted September 30, 2020 Share Posted September 30, 2020 maybe something like Hydnoceras? Just guessing. 2 Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 30, 2020 Share Posted September 30, 2020 1 hour ago, Plax said: maybe something like Hydnoceras? Just guessing. Sponge may be a good possibility also. @TqB 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...
TqB Posted September 30, 2020 Share Posted September 30, 2020 (edited) I don't know. If in doubt, try sponge! - Hydnoceras type hexactinellids certainly have similar nodes but are we seeing the surface or a section? - I don't think they have much internal structure. Edited September 30, 2020 by TqB 1 Tarquin Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 30, 2020 Share Posted September 30, 2020 Looks like lots of Ordovician in Shannon County, along with some Cambrian. 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...
Jackson g Posted September 30, 2020 Share Posted September 30, 2020 +1 for sponge. Possibly Chaetetid? I have a 5 gallon bucket full of sponges that look very similar to these. Well now I'm second guessing myself and kind of think its a bryozoan. Do the "lines/ pattern" run through to the top and bottom of the rock? Link to comment Share on other sites More sharing options...
LabRatKing Posted October 2, 2020 Share Posted October 2, 2020 I see a cross section oh a colonial with a helical dermis, however, I can’t find anything similar. Visualize a vascular tube with a raised spiral. That’s what I see. however I’ll bet on a non vascular colonial. Link to comment Share on other sites More sharing options...
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