tbwampler Posted April 19, 2020 Share Posted April 19, 2020 (edited) Several of these are imbedded in the sandstone on the shore of a man made lake on the Missouri River. They are of varying size but fairly consistent shape. They are generally half-exposed as this one was. Any ideas? Edited April 19, 2020 by tbwampler Added image Link to comment Share on other sites More sharing options...
Rockwood Posted April 19, 2020 Share Posted April 19, 2020 These are most likely concretion. This one is in to bad a condition to be certain though. 2 Link to comment Share on other sites More sharing options...
GeschWhat Posted April 20, 2020 Share Posted April 20, 2020 Welcome to the forum! You could also have a coprolite. Touch the lighter colored area to the tip of your tongue. If it is sticky, I vote coprolite. If it feels really sandy/gritty, it is a concretion. It is great that you took a photo of it in situ! Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
Rockwood Posted April 20, 2020 Share Posted April 20, 2020 1 hour ago, GeschWhat said: If it is sticky, I vote coprolite. I would be tempted to vote sticky tongue myself. 1 Link to comment Share on other sites More sharing options...
tbwampler Posted April 23, 2020 Author Share Posted April 23, 2020 Thanks all for your replies and help. Coprolite sounds way sexier than a concretion! But I'm not sure my tongue is qualified... 1 Link to comment Share on other sites More sharing options...
MarleysGh0st Posted April 23, 2020 Share Posted April 23, 2020 6 minutes ago, tbwampler said: Coprolite sounds way sexier than a concretion! I suggest you Google the definition of coprolite. Particularly after someone's recommended the tongue test. Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted April 23, 2020 Share Posted April 23, 2020 5 hours ago, MarleysGh0st said: I suggest you Google the definition of coprolite. Particularly after someone's recommended the tongue test. The tongue test works to determine if it is fossilized. If it tastes like rock, it's fossilized. If not, well . . . 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Ludwigia Posted April 23, 2020 Share Posted April 23, 2020 My impression is that of a septarian concretion. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
tbwampler Posted April 24, 2020 Author Share Posted April 24, 2020 (edited) 11 hours ago, MarleysGh0st said: I suggest you Google the definition of coprolite. Particularly after someone's recommended the tongue test. Yes...new to the forum, but not born yesterday! No need for Google. And come on, we’re on a fossil forum. You can’t tell me you don’t think coprolite isn’t sexier than a concretion! Edited April 24, 2020 by tbwampler Typo 1 Link to comment Share on other sites More sharing options...
Rockwood Posted April 24, 2020 Share Posted April 24, 2020 I wouldn't call either particularly sexy, but I collect them both. The distinction is how far you would carry it home from. Link to comment Share on other sites More sharing options...
supertramp Posted April 24, 2020 Share Posted April 24, 2020 Interesting, I don’t have a clear idea of what it could be, but is it correct that it has a brecciated appearance on the edge? (which would probably rule out concretion, in my opinion). ciao Link to comment Share on other sites More sharing options...
Rockwood Posted April 24, 2020 Share Posted April 24, 2020 24 minutes ago, supertramp said: a brecciated appearance on the edge? The whole photo says freeze/thaw to me. Link to comment Share on other sites More sharing options...
GeschWhat Posted April 24, 2020 Share Posted April 24, 2020 20 hours ago, tbwampler said: Yes...new to the forum, but not born yesterday! No need for Google. And come on, we’re on a fossil forum. You can’t tell me you don’t think coprolite isn’t sexier than a concretion! IMHO, there is nothing sexier! Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
GeschWhat Posted April 24, 2020 Share Posted April 24, 2020 14 hours ago, Rockwood said: I wouldn't call either particularly sexy, but I collect them both. The distinction is how far you would carry it home from. What? And I thought you were a convert. Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
Rockwood Posted April 24, 2020 Share Posted April 24, 2020 6 minutes ago, GeschWhat said: sexier! sexier - fossil ? Nope, no overlapping magisterium. 1 Link to comment Share on other sites More sharing options...
tbwampler Posted May 3, 2020 Author Share Posted May 3, 2020 Here are some better in situ pictures I took returning to the site. Link to comment Share on other sites More sharing options...
supertramp Posted May 3, 2020 Share Posted May 3, 2020 I'd have little doubt, with the new pics, that these are concretions. ciao Link to comment Share on other sites More sharing options...
Planko Posted May 3, 2020 Share Posted May 3, 2020 I found the similar at NSR and have asked about them. Here is the topic: Do they look the same to you? Link to comment Share on other sites More sharing options...
jpc Posted May 3, 2020 Share Posted May 3, 2020 On 4/23/2020 at 8:22 AM, MarleysGh0st said: I suggest you Google the definition of coprolite. Particularly after someone's recommended the tongue test. Hi Marley's Ghost. Long time no see. Ihope you are well. I am on the concretion side for this one. Link to comment Share on other sites More sharing options...
tbwampler Posted May 3, 2020 Author Share Posted May 3, 2020 Thanks for all your help! Link to comment Share on other sites More sharing options...
garyc Posted May 4, 2020 Share Posted May 4, 2020 I don’t know about y’all, but I wonder if millions of years from now someone will try the tongue test on one of my coprolites??!! 1 Link to comment Share on other sites More sharing options...
GeschWhat Posted May 4, 2020 Share Posted May 4, 2020 These just don't look like normal concretions to me. There is something different about them. Any chance you can look closely at them to see if there are any inclusions (bone, scales, etc.)? I can't tell from this photo, but is this an inclusion or just a shadow? Since there are so many, another thing you could try is scrapping the lighter colored area with a blade. If it feels gritty, I'll go along with the others and say concretion. However, if it feels smooth, almost waxy, I'd lean more toward coprolite. Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
tbwampler Posted May 11, 2020 Author Share Posted May 11, 2020 (edited) Thanks for your continued interest. At this point I’ll have to wait until next year. These examples are now underwater—they are located at a reservoir that is rapidly rising with spring runoff. They won’t be accessible again until the ice thaws next spring. I can tell you the object at the red arrow is not an artifact of the light, it is a genuine visible change in color within the white region. As to what it represents I cannot be sure. Edited May 11, 2020 by tbwampler 1 Link to comment Share on other sites More sharing options...
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