Bdog197 Posted August 30, 2015 Share Posted August 30, 2015 I found this many years ago in Georgia along the banks of the Chattahoochee River near Columbus. Link to comment Share on other sites More sharing options...
Rockwood Posted August 30, 2015 Share Posted August 30, 2015 Looks like an internal mold of a brachiopod shell. Link to comment Share on other sites More sharing options...
Bdog197 Posted August 30, 2015 Author Share Posted August 30, 2015 Rockwood, Thanks for the input. It has a shrimp type body, but the tail comes to a point. See below. file:///Users/bernardhempfling/Desktop/IMG_0067.jpg Link to comment Share on other sites More sharing options...
Bdog197 Posted August 30, 2015 Author Share Posted August 30, 2015 Picture Link to comment Share on other sites More sharing options...
old bones Posted August 30, 2015 Share Posted August 30, 2015 I admit that I know zip about such fossils, but the places I've marked remind me of sutures on an ammonite. Link to comment Share on other sites More sharing options...
Bdog197 Posted August 30, 2015 Author Share Posted August 30, 2015 Where the arrows are pointing seem to me to be for griping. Link to comment Share on other sites More sharing options...
Rockwood Posted August 30, 2015 Share Posted August 30, 2015 Picture Oh ! Then, never mind It was the center that reminded me of that. Link to comment Share on other sites More sharing options...
Goldkaiser Posted August 30, 2015 Share Posted August 30, 2015 I would be willing to go with old bones in that it reminds me of ammonites, can see what clearly looks like suture lines which are highlighted above the areas which you are referring to as being used for griping may be the patterns which you see on the ammonite shells, now I'm still learning so I may be completely wrong but that's what it reminds me off. However from a quick Google search I see the charahoochee formation is Miocene I age so that would rule out ammonites however I may be wrong about that as I'm not familiar with Geology abroad so I only used google hope it some help in a way Link to comment Share on other sites More sharing options...
Auspex Posted August 30, 2015 Share Posted August 30, 2015 There are tell-tale sutures in the first image, and a tell-tale keel in the second: I'll go with ammonite. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Mike Pocock Posted August 30, 2015 Share Posted August 30, 2015 Hi Looks like a worn ammonite to me to. Regards Mike Link to comment Share on other sites More sharing options...
abyssunder Posted September 1, 2015 Share Posted September 1, 2015 The sutures are visible mostly in the area that I crop from the first pic. of this thread. Theese suture patterns are characteristic to Ammonoids, and I see they are very complex, so it belongs to Ammonites form Triassic - Cretaceous periods. As I know, in the Chattahoochee River Basin near Columbus are Cretaceous outcrops, so it makes sense. " 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...
Ludwigia Posted September 1, 2015 Share Posted September 1, 2015 I agree with the above. Partial ammonite. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Guguita2104 Posted September 1, 2015 Share Posted September 1, 2015 Welcome to the Forum . We can see clearly the suture lines, caracteristic of Mesozoic ammonites...These are created for the intersection of the ondulated edges of septa (divisions of the chambers) with the superficial part of the shell.So, in my opinion, it's an eroded internal mold of an ammonite. Regards Link to comment Share on other sites More sharing options...
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