CEP Posted October 18, 2021 Share Posted October 18, 2021 I found this among a large amount of Ceratopsian bone. Is it what I think it is or a just a coincidence of nature? Judith River Formation on the Milk River. Link to comment Share on other sites More sharing options...
Sagebrush Steve Posted October 18, 2021 Share Posted October 18, 2021 Could you take the photo again with a ruler in it? Thanks. Link to comment Share on other sites More sharing options...
CEP Posted October 18, 2021 Author Share Posted October 18, 2021 11 minutes ago, Sagebrush Steve said: Could you take the photo again with a ruler in it? Thanks. can't find a ruler but here it is in my hand. Link to comment Share on other sites More sharing options...
Lone Hunter Posted October 18, 2021 Share Posted October 18, 2021 At the top of Fossil ID page you will see post provided by Coco for printing out paper for scale. Always better to lay on surface rather than hold in your hand. Looks like a concretion to me but I'm not a poo pro. Link to comment Share on other sites More sharing options...
Sjfriend Posted October 18, 2021 Share Posted October 18, 2021 Without a closer look I couldn't say but it does give that "poop" impression. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted October 18, 2021 Share Posted October 18, 2021 Those are concretions that have shrunk and cracked. Short of a professional paper on nearly identical items that have been ID’d as coprolites or evidence of eaten items such as bones, shells, seeds etc., they are not coprolites. 3 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
Sagebrush Steve Posted October 18, 2021 Share Posted October 18, 2021 It would be worth examining these under a stereomicroscope at 10x to 20x power to see if you can spot any digested material like shells or bones. Without that kind of evidence it would be hard to call them anything but concretions. Link to comment Share on other sites More sharing options...
Coco Posted October 18, 2021 Share Posted October 18, 2021 Hi, @GeschWhat Have a look on my signature... Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici 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...
GeschWhat Posted November 2, 2021 Share Posted November 2, 2021 I'm getting concretion vibes on these. You could try touching to the tip of your tongue to see if it sticks, but that doesn't work with the Judith River coprolites in my collection. But then, I don't have many from that formation. Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
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