BobWill Posted July 16, 2019 Share Posted July 16, 2019 A friend found what looks like a bone in the Lower Cretaceous, Duck Creek Formation of Cooke County Texas. The site yields marine fossils like the ammonite Eopachydiscus marcianus. We have also found some fish parts and a tooth and paddle bone from an ichthyosaur. She plans to join TFF soon but asked me to post this for her. Link to comment Share on other sites More sharing options...
Al Dente Posted July 16, 2019 Share Posted July 16, 2019 Are rudists found at this site? This fossil looks like shelly material that has eroded, surrounding a sediment filled core. 1 Link to comment Share on other sites More sharing options...
Rockwood Posted July 16, 2019 Share Posted July 16, 2019 Might it be worth considering a humerus from a pterosaur ? 1 Link to comment Share on other sites More sharing options...
BobWill Posted July 16, 2019 Author Share Posted July 16, 2019 3 hours ago, Al Dente said: Are rudists found at this site? This fossil looks like shelly material that has eroded, surrounding a sediment filled core. That would be a first for the site but it's worth considering. Link to comment Share on other sites More sharing options...
Pemphix Posted July 16, 2019 Share Posted July 16, 2019 Strange kind of preservation - never saw this on bones... Looks indeed like some kind of bone... Link to comment Share on other sites More sharing options...
DPS Ammonite Posted July 16, 2019 Share Posted July 16, 2019 It is strange preservation if it is bone. Bob, is the darker part actually bone or is it sediment; the pictures are not detailed enough? Does acid dissolve the white outer part? If the outer white part does not dissolve in acid and is bone, the bone might be more recent since it is so light in color. My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
JohnJ Posted July 16, 2019 Share Posted July 16, 2019 Bob, what was the context of the find? Was it found as "float" in a waterway, eroding directly from the bedrock, loose on the ground...? The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
BobWill Posted July 16, 2019 Author Share Posted July 16, 2019 The person who found it is fairly new to fossil collecting but expressed an interest in joining TFF so we may hear directly from her eventually. Meanwhile I will try to get the answer to these questions. Link to comment Share on other sites More sharing options...
Amysmith113 Posted July 17, 2019 Share Posted July 17, 2019 Hello all, thank you for all the help. I found this lying loose in the creek bed. It is a very interesting piece and I hope to be able to ID it. I will try the vinegar test in a day or so and post my results. Link to comment Share on other sites More sharing options...
Rockwood Posted July 17, 2019 Share Posted July 17, 2019 Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted July 17, 2019 Share Posted July 17, 2019 9 hours ago, Rockwood said: I brought us an extra. 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...
Mike from North Queensland Posted July 17, 2019 Share Posted July 17, 2019 I am with Rockwood on this one I would show it to an expert on Pterosaurs. From photos it looks to be a very thin walled bone with an infilled core possibly a radius or ulna ?? The other material found in the area was marine and as it dose not conform to any marine bone material. The best assumption is that it flew to near where it was found and the bone material would be bleached so the colour does not make it recent. The core being filled points more to fossil. Link to comment Share on other sites More sharing options...
UnbrandedMoss Posted July 18, 2019 Share Posted July 18, 2019 My money is on a Humerus Link to comment Share on other sites More sharing options...
Amysmith113 Posted July 19, 2019 Share Posted July 19, 2019 I soaked this object in some warm water this morning. And unlike anything else I have ever found, the "fossil" completed floats when submerged in water Link to comment Share on other sites More sharing options...
Al Dente Posted July 19, 2019 Share Posted July 19, 2019 5 minutes ago, Amysmith113 said: I soaked this object in some warm water this morning. And unlike anything else I have ever found, the "fossil" completed floats when submerged in water Probably not a fossil. Maybe some type of foam plastic. You can try touching it with a red hot needle (hold it with pliers) to see if it smokes and gives off a burnt plastic smell. Link to comment Share on other sites More sharing options...
Rockwood Posted July 19, 2019 Share Posted July 19, 2019 3 hours ago, Al Dente said: Probably not a fossil. Maybe some type of foam plastic. You can try touching it with a red hot needle (hold it with pliers) to see if it smokes and gives off a burnt plastic smell. It will be helpful to determine what the center is. I can imagine it being a fossil in it's own right, which just happens to float. Link to comment Share on other sites More sharing options...
BobWill Posted July 20, 2019 Author Share Posted July 20, 2019 21 hours ago, Rockwood said: It will be helpful to determine what the center is. I can imagine it being a fossil in it's own right, which just happens to float. I heard from her that she found out it will sink when saturated so the porosity was keeoing it afloat originally. The fossil does not react with acid if that helps any. Link to comment Share on other sites More sharing options...
Rockwood Posted July 20, 2019 Share Posted July 20, 2019 Hyperostosed pterosaur bone ? Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted July 20, 2019 Share Posted July 20, 2019 Volcanic bomb? 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...
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