MaximusTN Posted August 4, 2018 Share Posted August 4, 2018 Please help identify this tooth found week before last at Seagrove Beach, FL in the Florida Panhandle. This little gem was the only tooth I found all week there. The tooth is smaller than the size of an M&M and has a notch in the middle at the top of the root. There appear to be serrations all along the tooth and in the area just below the root. Thanks Link to comment Share on other sites More sharing options...
old bones Posted August 4, 2018 Share Posted August 4, 2018 I cropped and brightened your photo a bit to aid in ID. Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 4, 2018 Share Posted August 4, 2018 A Carcharhinid. “...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...
Auspex Posted August 4, 2018 Share Posted August 4, 2018 22 minutes ago, WhodamanHD said: A Carcharhinid. Yes, a Grey, Dusky, or Silky Shark lateral. "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...
MarcoSr Posted August 4, 2018 Share Posted August 4, 2018 The tooth could be a Carcharhinus but I think it is more likely a Sphyrna (hammerhead) lateral tooth. Below is an extant Sphyrna mokarran (Great Hammerhead Shark) upper lateral tooth as an example. A number of extant hammerhead shark species have very similar serrated teeth. Marco Sr. 3 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
Al Dente Posted August 4, 2018 Share Posted August 4, 2018 I think it could be Carcharhinus plumbeus, the sandbar shark. Link to comment Share on other sites More sharing options...
MarcoSr Posted August 5, 2018 Share Posted August 5, 2018 1 hour ago, Al Dente said: I think it could be Carcharhinus plumbeus, the sandbar shark. Eric Below is an extant C. plumbeus dentition from J-elasmo which looks like the teeth in the extant sandbar shark jaws that I have. Marco Sr.. 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
lawooten Posted August 5, 2018 Share Posted August 5, 2018 Looks like a Carcharhinus falciformis AKA Silky shark The best days are spent collecting fossils Link to comment Share on other sites More sharing options...
Al Dente Posted August 5, 2018 Share Posted August 5, 2018 8 hours ago, MarcoSr said: Eric Below is an extant C. plumbeus dentition from J-elasmo which looks like the teeth in the extant sandbar shark jaws that I have. I should have looked at my references first, the distal side of this tooth is different than the Sandbar Shark. When comparing this tooth with modern Carcharhinus from the book “Field guide for the sharks of the genus Carcharhinus”, the Blacknose Shark looks very similar (Carcharhinus acronotus). 1 Link to comment Share on other sites More sharing options...
MarcoSr Posted August 5, 2018 Share Posted August 5, 2018 5 hours ago, Al Dente said: I should have looked at my references first, the distal side of this tooth is different than the Sandbar Shark. When comparing this tooth with modern Carcharhinus from the book “Field guide for the sharks of the genus Carcharhinus”, the Blacknose Shark looks very similar (Carcharhinus acronotus). Eric C. acronotus looks like a very good match and its extant range includes the Florida panhandle. However it is so hard to id a loose tooth from pictures. There can be so many possibilities. This tooth could also be a Rhizoprionodon. Edit Adult Rhizoprionodon teeth of some species are serrated or can be serrated but may be too small to be the tooth in the post. There are multiple genera that the posted tooth could be. I have a good number of teeth in my collection that I'm not sure of the id. Marco Sr. 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MaximusTN Posted August 5, 2018 Author Share Posted August 5, 2018 Thank you all for the input. It does look a lot like the great hammerhead shark example above, but I can see characteristics in all of the other shark species. I was just thrilled to have come across this tooth after reading that shark teeth were more miss and than hit in the Panhandle. Link to comment Share on other sites More sharing options...
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