Ben&Jess Posted September 30, 2019 Share Posted September 30, 2019 Appears to be a very old tooth. Seems worn down?? Link to comment Share on other sites More sharing options...
Ben&Jess Posted September 30, 2019 Author Share Posted September 30, 2019 Link to comment Share on other sites More sharing options...
Ben&Jess Posted September 30, 2019 Author Share Posted September 30, 2019 Link to comment Share on other sites More sharing options...
caldigger Posted September 30, 2019 Share Posted September 30, 2019 This looks more like a claw core than shark tooth...to me at least. Link to comment Share on other sites More sharing options...
Ben&Jess Posted September 30, 2019 Author Share Posted September 30, 2019 Claw core??? Link to comment Share on other sites More sharing options...
Brett Breakin' Rocks Posted September 30, 2019 Share Posted September 30, 2019 2 hours ago, Ben&Jess said: Appears to be a very old tooth. Seems worn down?? Hi There, Gonna trot this out since it seems I am the local expert ? .. haha .. but seriously quite common around Summerville and Charleston SC areas. @caldigger save these images ok, so when I'm not around you can post them. Generally these come from an extinct genus of Billfish. Most common is the Aglyptorhynchus sp. from the Oligocene, Chandler Bridge fm. A vert process (spine) from the Haemal or Caudal vertebra. I've included a tuna also because occasionally they can come from a large tuna as well. A great shot of a Haemal Spine from the Billfish Aglyptorhynchus Oligocene Chandler Bridge fm. A tuna for comparison ............ Cheers, Brett 2 1 Link to comment Share on other sites More sharing options...
Ben&Jess Posted September 30, 2019 Author Share Posted September 30, 2019 Thanks gents I would definitely say that looks to be what we have Link to comment Share on other sites More sharing options...
hemipristis Posted October 1, 2019 Share Posted October 1, 2019 Bingo Brett. 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
Ben&Jess Posted October 1, 2019 Author Share Posted October 1, 2019 Thanks gents. And thanks for the diagrams. So it’s safe to say this claw core connectes to the vert?!? Am I looking at that correctly. Because we have been finding quite a few verts in the same area. I put one of them next to the claw core in a pic attached Link to comment Share on other sites More sharing options...
Shellseeker Posted October 1, 2019 Share Posted October 1, 2019 On 9/30/2019 at 12:50 AM, Brett Breakin' Rocks said: Generally these come from an extinct genus of Billfish. Most common is the Aglyptorhynchus sp. from the Oligocene, Chandler Bridge fm. A vert process (spine) from the Haemal or Caudal vertebra. I've included a tuna also because occasionally they can come from a large tuna as well. Brett, Fantastic photos.. You are the expert and I found out at least 3 things I did not know from this post. Thanks. I will make copies of your photos. I recently found the 3rd or 4th Hyplural of my fossil hunting career. I wonder why so rare in the Peace River formation. 1 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
Brett Breakin' Rocks Posted October 2, 2019 Share Posted October 2, 2019 13 hours ago, Ben&Jess said: Because we have been finding quite a few verts in the same area. Hi There, If we could see the profile view .. I suspect what you have is a shark centrum (or shark vert -vertebra- you will hear more often). Two different animals so to speak. The spine (top) is from a bony fish ... the centrum (bottom) from a cartilaginous shark. Cheers, Brett Link to comment Share on other sites More sharing options...
hemipristis Posted October 2, 2019 Share Posted October 2, 2019 13 hours ago, Shellseeker said: Brett, Fantastic photos.. You are the expert and I found out at least 3 things I did not know from this post. Thanks. I will make copies of your photos. I recently found the 3rd or 4th Hyplural of my fossil hunting career. I wonder why so rare in the Peace River formation. historical depth of water too shallow? Most billfish like deeper water, esp the big ones 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
Ben&Jess Posted October 2, 2019 Author Share Posted October 2, 2019 Link to comment Share on other sites More sharing options...
Brett Breakin' Rocks Posted October 2, 2019 Share Posted October 2, 2019 13 hours ago, Shellseeker said: I wonder why so rare in the Peace River formation. I'm not sure either .. (?) up in Charleston the formation was Late Oligocene and I read somewhere in a paper that it was a shallow marine environment at approx 40-200m depth. A better environment for large bony fish I suspect ... the billfish could get HUGE. I think @hemipristis mentioned as much concerning depth. Here is a vert from a Xiphiorhynchus rotundus an extinct billfish from the Oligocene. 5.5 inches long 4 inches wide. Image Credit: Brian Anderson - Facebook Image Credit: Mark Bunce - Facebook 32 minutes ago, hemipristis said: historical depth of water too shallow? Most billfish like deeper water, esp the big ones Link to comment Share on other sites More sharing options...
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