Herb Posted February 7, 2018 Share Posted February 7, 2018 posting this for a friend. Found in Charlotte, TN. Middle of state. Could be Ord, Sil, Dev, but my guess would be Silurian from the color of the matrix. Any ideas, it's got me stumped. LOOKS LIKE THE AGE IS MISSISSIPPIAN "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Miocene_Mason Posted February 7, 2018 Share Posted February 7, 2018 Bivalve of some sort I reckon. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Fossildude19 Posted February 7, 2018 Share Posted February 7, 2018 Maybe something like Wilkingia? Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Bullsnake Posted February 7, 2018 Share Posted February 7, 2018 @Herb Do you have access to Index Fossils of North America? I think I recall seeing something like that. Steve Link to comment Share on other sites More sharing options...
Herb Posted February 7, 2018 Author Share Posted February 7, 2018 4 hours ago, Bullsnake said: @Herb Do you have access to Index Fossils of North America? I think I recall seeing something like that. Thats a lot of pages to flip through "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Herb Posted February 7, 2018 Author Share Posted February 7, 2018 7 hours ago, Fossildude19 said: Maybe something like Wilkingia? seems too irregular to me to be Wilkingia, I dont think there is any Miss. in the area but I will double check, thx "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Bullsnake Posted February 7, 2018 Share Posted February 7, 2018 5 minutes ago, Herb said: Thats a lot of pages to flip through Indeed! I had a look when I got home. Conocardium is what I recalled seeing. Steve Link to comment Share on other sites More sharing options...
Herb Posted February 8, 2018 Author Share Posted February 8, 2018 Looks like the age is Mississippian. Here is a Wilkingia sp of mine, does look mighty similar. Maybe opened back on itself? "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
D.N.FossilmanLithuania Posted February 8, 2018 Share Posted February 8, 2018 It looks like pteriomorph bivalve. Link to comment Share on other sites More sharing options...
minnbuckeye Posted February 8, 2018 Share Posted February 8, 2018 Way off of everyone's thoughts, but @Herb, isn't there a cephalopod that is flattened and wavy that has a surface looking very similar to this? Again, a long shot. Link to comment Share on other sites More sharing options...
piranha Posted February 8, 2018 Share Posted February 8, 2018 A colleague has suggested gastropod operculum. The diagram scale from IFNA is 10 cm length. Link to comment Share on other sites More sharing options...
Fossildude19 Posted February 8, 2018 Share Posted February 8, 2018 My problem with gastropod operculum is that it looks like both halves of a bivalve, articulated, but opened, and lying next to each other. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
piranha Posted February 8, 2018 Share Posted February 8, 2018 31 minutes ago, Fossildude19 said: My problem with gastropod operculum is that it looks like both halves of a bivalve, articulated, but opened, and lying next to each other. It was actually suggested to be a pair of opercula. The specimen with better preservation is shown for easier comparison. Matching opened valves seems unlikely as the one on the right shows the horn-shape curving in the opposite direction. Link to comment Share on other sites More sharing options...
Herb Posted February 8, 2018 Author Share Posted February 8, 2018 1 hour ago, piranha said: A colleague has suggested gastropod operculum. The diagram scale from IFNA is 10 cm length. 35 minutes ago, piranha said: It was actually suggested to be a pair of opercula. The specimen with better preservation is shown for easier comparison. Matching opened valves seems unlikely as the one on the right shows the horn-shape curving in the opposite direction. now that is an interesting possibility "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
FossilDAWG Posted February 8, 2018 Share Posted February 8, 2018 Minibuckeye, there is such a cephalopod (Gonioceras). However, it would not be paired like this specimen, and the "camerae" on the specimen are too irregular in width to be actual nautiloid chambers. Don Link to comment Share on other sites More sharing options...
piranha Posted February 8, 2018 Share Posted February 8, 2018 Does the so-called 'pairing' match any known morphology or is it merely coincidental? Here is another image from TFF-FB: Link to comment Share on other sites More sharing options...
Miocene_Mason Posted February 8, 2018 Share Posted February 8, 2018 Ammonites and such have aptychuses (aptychae?aptychi?) which may be operculums. Not sure if that’s relevant. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
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