Ramon Posted January 18, 2017 Share Posted January 18, 2017 I bought this fossil. It came from the Taman group in San Luis Potosi, Mexico which is callovian to Tithonian in age. The fossil looks like bone. It is in an ammonite coquina. The ammonites look like Perisphinctes sp. It looks like a jaw. It has hollow cavities just like bone. Please help me Identify this. Photo of the specimen I circled the fossil "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
Ramon Posted January 18, 2017 Author Share Posted January 18, 2017 Here's another photo of the break showing hollow cavities just like bone. I circled the break "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
Rockwood Posted January 18, 2017 Share Posted January 18, 2017 The end is a little hard to make out, but I'm not convinced that it has the texture of bone. Link to comment Share on other sites More sharing options...
Vieira Posted January 18, 2017 Share Posted January 18, 2017 Better pictures may help. I don't see bone structure there... Link to comment Share on other sites More sharing options...
Doctor Mud Posted January 18, 2017 Share Posted January 18, 2017 Could be bone, but we would need, clear, close-up shots of the ends. Fossil bone often has small holes or canals that help set it apart from similar structures. The ends are the best place to see these. Link to comment Share on other sites More sharing options...
Spinosaurus Posted January 18, 2017 Share Posted January 18, 2017 yup, its bone Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 18, 2017 Share Posted January 18, 2017 I'm not convinced it's bone. Better pictures are needed to make that determination. Regards, 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...
ynot Posted January 18, 2017 Share Posted January 18, 2017 I think it looks a lot like wood. But more pictures may change that opinion. Tony 1 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Ramon Posted January 18, 2017 Author Share Posted January 18, 2017 I'm going to take better pictures in sunlight. But today it is raining. "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
abyssunder Posted January 19, 2017 Share Posted January 19, 2017 As you said, you bought this fossil assemblage. My question is, how sure could you be about the location, formation and geological stage, also, have you more precise information regarding to this specimen? At San Luis Potosi, Mexico are lots of formations varying in age from Late Jurassic to Late Creataceous. In other words, is good to know which formation are we dealing with. I say this because, in my thought, I could recognise a resemblance with a rudist, so far. Better close-up pictures would reveal more details, as was stated before by our remarkable members of the Forum. 1 " 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...
Ramon Posted January 26, 2017 Author Share Posted January 26, 2017 Here's some more pictures of the break. I don't know if you can see the hollow cavities. I just wish you'all could see what I see. "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
Ramon Posted January 27, 2017 Author Share Posted January 27, 2017 Here's a photo of the surface taken through my microscope. Photo taken with microscope at 40x magnification. You can see Horizontal lines going through the bone. These lines are blood vessels. My fossil through microscope 40x Tell me what you'all think, now!!! "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
jpc Posted January 27, 2017 Share Posted January 27, 2017 I don't see any bone structure,sorry. More plant-like. Link to comment Share on other sites More sharing options...
Ramon Posted January 27, 2017 Author Share Posted January 27, 2017 21 minutes ago, jpc said: I don't see any bone structure,sorry. More plant-like. How did a plant get to the bottom of the sea? Just curious!!! "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
ynot Posted January 27, 2017 Share Posted January 27, 2017 16 minutes ago, Ramon said: How did a plant get to the bottom of the sea? Just curious!!! Some plants grow there, others could have floated down in a flood (driftwood). Tony PS I agree with plant. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Ramon Posted January 27, 2017 Author Share Posted January 27, 2017 Okay, It's not bone. But it's still cool to have a plant in marine sediments!!! "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
Ramon Posted January 27, 2017 Author Share Posted January 27, 2017 On 1/19/2017 at 4:19 PM, abyssunder said: As you said, you bought this fossil assemblage. My question is, how sure could you be about the location, formation and geological stage, also, have you more precise information regarding to this specimen? At San Luis Potosi, Mexico are lots of formations varying in age from Late Jurassic to Late Creataceous. In other words, is good to know which formation are we dealing with. I say this because, in my thought, I could recognise a resemblance with a rudist, so far. Better close-up pictures would reveal more details, as was stated before by our remarkable members of the Forum. Well, I use Index fossils. For the Ochetoceras which the seller sell it to me with other pieces from the same spot, I used Auracomyella which is a brachiopod which is abundant in the Taman formation and mostly absent in the other formations. For this one I posted that it came from the Taman group because I don't know from which part of the group it came from, although I think it comes from the Tepexic limestone which is a limestone that is packed with ammonites. "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
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