JBMugu Posted May 12, 2018 Share Posted May 12, 2018 I found this earlier this year, can't figure out what it is. The more I look at it the more I think coprolite. Let me know what you think. Link to comment Share on other sites More sharing options...
JBMugu Posted May 12, 2018 Author Share Posted May 12, 2018 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted May 12, 2018 Share Posted May 12, 2018 Could be, could be. or it may just be limonite and ochre or something Have you tried the tongue test yet? @GeschWhat 2 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
GeschWhat Posted May 12, 2018 Share Posted May 12, 2018 I concur...it could be. The shape is right. I couldn't tell from your photos whether the dark spots were mineral staining or inclusions. I'm not too familiar with Sharktooth Hill. Is your scale in inches or cm? I have lightened up the photos a bit, but am still unsure. Does it feel smooth or gritty to the touch? Does it stick to your tongue? I must put out a disclaimer here. I recently acquired some Jurassic fossils from Germany and Poland that were thought to be coprolites. The outer surface was very sticky when wet, but the interior of fractures areas, not so much. They had a very gritty feel. When I looked at them under the microscope, they appeared very granular and contained a lot of small shell fragments and some coprolite pellets. Because of this, and the shape of a few of them, I'm pretty sure they are burrows and not coprolites. I am curious if they were sticky on the surface because of the deposition of fecal matter in the burrows. Perhaps one day I will have them tested. 2 Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
JBMugu Posted May 12, 2018 Author Share Posted May 12, 2018 14 minutes ago, GeschWhat said: I concur...it could be. The shape is right. I couldn't tell from your photos whether the dark spots were mineral staining or inclusions. I'm not too familiar with Sharktooth Hill. Is your scale in inches or cm? I have lightened up the photos a bit, but am still unsure. Does it feel smooth or gritty to the touch? Does it stick to your tongue? I must put out a disclaimer here. I recently acquired some Jurassic fossils from Germany and Poland that were thought to be coprolites. The outer surface was very sticky when wet, but the interior of fractures areas, not so much. They had a very gritty feel. When I looked at them under the microscope, they appeared very granular and contained a lot of small shell fragments and some coprolite pellets. Because of this, and the shape of a few of them, I'm pretty sure they are burrows and not coprolites. I am curious if they were sticky on the surface because of the deposition of fecal matter in the burrows. Perhaps one day I will have them tested. The dark spots are a manganese growth that's is common to see formed on fossils from STH. The layer this came from is a really fine sand so everything we find is gritty so it's tough to determine if the grit is part of the item or not. The scale is in inches. I have found thousands of rocks there but almost all are water worn and round, I have never seen a rock with this shape there. When licked it kind of sticks to the tongue but not very much. Link to comment Share on other sites More sharing options...
ynot Posted May 12, 2018 Share Posted May 12, 2018 Looks like a typical iron concretion to Me, although with an unusual shape. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
GeschWhat Posted May 13, 2018 Share Posted May 13, 2018 All I can give you is a maybe. I went back and looked at (and tested) some of the coprolites I have that have a higher iron content. They don't stick at all, but do have inclusions. If I found it in a fossiliferous area I would keep and label it as a possible coprolite. 1 Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
JBMugu Posted May 19, 2018 Author Share Posted May 19, 2018 Update: I took the specimen down to the Los Angeles museum of natural history and the curator of vertebrae paleontology thought it was a coprolite and I donated it to their collection for further study 1 Link to comment Share on other sites More sharing options...
ynot Posted May 19, 2018 Share Posted May 19, 2018 10 minutes ago, JBMugu said: Update: I took the specimen down to the Los Angeles museum of natural history and the curator of vertebrae paleontology thought it was a coprolite and I donated it to their collection for further study Cool! Post it in the "partners in paleontology" sub forum and collect Your badge! 3 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
GeschWhat Posted May 19, 2018 Share Posted May 19, 2018 10 hours ago, JBMugu said: Update: I took the specimen down to the Los Angeles museum of natural history and the curator of vertebrae paleontology thought it was a coprolite and I donated it to their collection for further study Excellent! Here is the Paleo Partners thread. 1 Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
fifbrindacier Posted May 19, 2018 Share Posted May 19, 2018 That's the day of the coprolites ! 1 "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...
abyssunder Posted May 20, 2018 Share Posted May 20, 2018 Can be this supposed resemblance just a trick of my mind ? " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
fifbrindacier Posted May 20, 2018 Share Posted May 20, 2018 6 hours ago, abyssunder said: Can be this supposed resemblance just a trick of my mind ? I see the pattern you think about and i also find a resemblance. "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...
GeschWhat Posted May 20, 2018 Share Posted May 20, 2018 12 hours ago, abyssunder said: Can be this supposed resemblance just a trick of my mind ? Ha! I didn't notice that. 1 Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
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