Brynn Posted July 12, 2019 Share Posted July 12, 2019 (edited) Can anyone ID? It has the lines on the side that look like they could be from a fin or plant maybe, idk, and there's the column. Edited July 12, 2019 by Brynn Link to comment Share on other sites More sharing options...
Scylla Posted July 12, 2019 Share Posted July 12, 2019 I think it looks like an imprint of a crinoid. Could we get better pictures at different angles? Also where was it found? Link to comment Share on other sites More sharing options...
caldigger Posted July 12, 2019 Share Posted July 12, 2019 Duplicate ID request. Tags state Eureka Springs, Arkansas. And I agree with the crinoid column imprint. 1 Link to comment Share on other sites More sharing options...
Rockwood Posted July 12, 2019 Share Posted July 12, 2019 Lest one think this shape is just wrong for a crinoid stem. 4 Link to comment Share on other sites More sharing options...
FossilNerd Posted July 12, 2019 Share Posted July 12, 2019 8 hours ago, Brynn said: It has the lines on the side that look like they could be from a fin or plant maybe, idk, and there's the column. As others have said, the column is a crinoid stem impression. The lines to the left of the column are probably not fin or plant material. More likely a shell impression. The good thing about science is that it's true whether or not you believe in it. -Neil deGrasse Tyson Everyone you will ever meet knows something you don't. -Bill Nye (The Science Guy) Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted July 12, 2019 Share Posted July 12, 2019 14 hours ago, Rockwood said: Lest one think this shape is just wrong for a crinoid stem. This is fossil DNA -- can't you see the double helix? 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...
abyssunder Posted July 12, 2019 Share Posted July 12, 2019 Just crossed my mind a crinoid root / holdfast / anchoring system, considering the nicely arranged row(s) of knobs visible in the picture. Here's an example of what I'm thinking about: " 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...
Rockwood Posted July 12, 2019 Share Posted July 12, 2019 7 minutes ago, abyssunder said: Just crossed my mind a crinoid root / holdfast / anchoring system, considering the nicely arranged row(s) of knobs visible in the picture. The straight rows is a better match, but would the columnals be as well defined in a holdfast ? Link to comment Share on other sites More sharing options...
abyssunder Posted July 12, 2019 Share Posted July 12, 2019 32 minutes ago, Rockwood said: The straight rows is a better match, but would the columnals be as well defined in a holdfast ? I think yes, if we are looking from inside out of a holdfast, as exemplified in the sketch above at " cirral grapnels - E ". similar picture resembling the specimen in question from here " 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...
Rockwood Posted July 13, 2019 Share Posted July 13, 2019 8 hours ago, abyssunder said: if we are looking from inside out of a holdfast, as exemplified in the sketch above at " cirral grapnels - E ". Could be. More views of the post may help to determine if this is the case. Link to comment Share on other sites More sharing options...
abyssunder Posted July 14, 2019 Share Posted July 14, 2019 On 7/13/2019 at 10:40 AM, Rockwood said: Could be. More views of the post may help to determine if this is the case. I agree. At the actual stage, the resemblance might be good. " 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...
Sberebit Posted July 15, 2019 Share Posted July 15, 2019 On 7/12/2019 at 7:35 AM, FossilNerd said: As others have said, the column is a crinoid stem impression. The lines to the left of the column are probably not fin or plant material. More likely a shell impression. I agree with this assessment. With that said, I love this find! Trace fossils are awesome! Link to comment Share on other sites More sharing options...
Rockwood Posted July 15, 2019 Share Posted July 15, 2019 2 hours ago, Sberebit said: Trace fossils are awesome! In theory I suppose it could be a trace fossil. These were relatively mobile for crinoids, but it's more likely to be a body fossil. Trace fossils are the result of an activity. 1 Link to comment Share on other sites More sharing options...
Sberebit Posted July 16, 2019 Share Posted July 16, 2019 15 hours ago, Rockwood said: In theory I suppose it could be a trace fossil. These were relatively mobile for crinoids, but it's more likely to be a body fossil. Trace fossils are the result of an activity. I have been calling anything that leaves an imprint a 'trace fossil'. Thank you for the correction. Link to comment Share on other sites More sharing options...
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