fishguy Posted January 18, 2019 Share Posted January 18, 2019 Found this on a field trip this fall. Looking for any suggestions on what it could be. Link to comment Share on other sites More sharing options...
fishguy Posted January 18, 2019 Author Share Posted January 18, 2019 The back side there are faint ribbing Link to comment Share on other sites More sharing options...
DeepTimeIsotopes Posted January 18, 2019 Share Posted January 18, 2019 According to this https://s-iihr34.iihr.uiowa.edu/publications/uploads/GSI-088.pdf there’s lots of brachiopods and echinoderm debris. If it’s either of those yours is pretty worn. The common brachiopods are Orthospirifer iowensis and Schizophoria sp. Which look like this https://goo.gl/images/Y9Q7LH and this https://goo.gl/images/wC73Cd yours looks more like a worn Schizophoria sp. to me but it could totally be something else as I’m no expert on this formation or brachiopods. Maybe @Tidgy's Dad could confirm or deny that. 3 Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by? Link to comment Share on other sites More sharing options...
KimTexan Posted January 18, 2019 Share Posted January 18, 2019 34 minutes ago, UtahFossilHunter said: According to this https://s-iihr34.iihr.uiowa.edu/publications/uploads/GSI-088.pdf there’s lots of brachiopods and echinoderm debris. If it’s either of those yours is pretty worn. The common brachiopods are Orthospirifer iowensis and Schizophoria sp. Which look like this https://goo.gl/images/Y9Q7LH and this https://goo.gl/images/wC73Cd yours looks more like a worn Schizophoria sp. to me but it could totally be something else as I’m no expert on this formation or brachiopods. Maybe @Tidgy's Dad could confirm or deny that. I think Adam said he was going out of town for a few days and got the impression he wouldn’t be on TFF. Maybe @Herb or @jdp would have some thoughts. 2 Link to comment Share on other sites More sharing options...
jdp Posted January 18, 2019 Share Posted January 18, 2019 I'm not a brachiopod expert. I can assign them to order but that's about it. Link to comment Share on other sites More sharing options...
DeepTimeIsotopes Posted January 18, 2019 Share Posted January 18, 2019 6 hours ago, KimTexan said: I think Adam said he was going out of town for a few days and got the impression he wouldn’t be on TFF. Maybe @Herb or @jdp would have some thoughts. Thanks, that’s good to know. @fishguy I modified your picture to make it a little more detailed. 1 Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by? Link to comment Share on other sites More sharing options...
Al Tahan Posted January 18, 2019 Share Posted January 18, 2019 It’s distinctly round...kinda has an echinoid look to it Link to comment Share on other sites More sharing options...
RJB Posted January 18, 2019 Share Posted January 18, 2019 Looks like some kind of concretion? RB 1 Link to comment Share on other sites More sharing options...
Max-fossils Posted January 18, 2019 Share Posted January 18, 2019 2 hours ago, RJB said: Looks like some kind of concretion? RB I agree with this... I'm not seeing anything that screams out fossil to me Max Derème "I feel an echo of the lightning each time I find a fossil. [...] That is why I am a hunter: to feel that bolt of lightning every day." - Mary Anning >< Remarkable Creatures, Tracy Chevalier Instagram: @world_of_fossils Link to comment Share on other sites More sharing options...
fifbrindacier Posted January 18, 2019 Share Posted January 18, 2019 I also agree with concretion, although it looks like a very worn internal mold of something. Here are, for comparison, some of the schizophoriae i've found, they have a very particular shape : 2 "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
ynot Posted January 18, 2019 Share Posted January 18, 2019 +1 for concretion. 1 Link to comment Share on other sites More sharing options...
Kato Posted January 19, 2019 Share Posted January 19, 2019 On 1/17/2019 at 7:45 PM, fishguy said: Found this on a field trip this fall. Looking for any suggestions on what it could be. I'll throw this out there as a possibility....even though the bottom view does not present itself as such, the top view appears similar to a trace fossil version of Conostichus Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted January 22, 2019 Share Posted January 22, 2019 I suppose it could possibly be the internal mold of a discinoid brachiopod. 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
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