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Found 82 results

  1. Ptychodus marginalis

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus marginalis. I am unsure of ID. Please correct me if wrong.
  2. Ptychodus anonymus

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus anonymus. I am unsure of the ID. Please let me know if wrong.
  3. Ptychodus marginalis

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus marginalis. I am unsure of the ID.
  4. Ptychodus marginalis

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus marginalis. I am unsure of the ID due to the strange position.
  5. Ptychodus anonymus

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus anonymus. I am unsure on the ID. Please correct me if wrong.
  6. Ptychodus anonymus

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus anonymus. I believe I am correct, please correct me if wrong.
  7. Ptychodus anonymus

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus anonymus. I believe I am correct. Please correct me if wrong.
  8. Ptychodus anonymus

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus anonymus. I believe my ID is correct, please correct me if wrong.
  9. Ptychodus anonymus

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus anonymus. I believe my ID is correct. Please correct me if I am wrong.
  10. Ptychodus anonymus

    From the album Cenomanian Shark Teeth and other Marine Fauna, Ryazan Oblast, Russia

    Ptychodus anonymus. I believe my ID is correct. If not please correct me.
  11. I’ve been walking over this every day

    Hello, first time poster - long time admirer. I moved to a new place and have been walking over this every day while getting exercise. What is it? KC Group, Middle Zarah Subgroup, Wyandotte Formation, Quindaro; aprox 4cm across at widest. This is in Kansas City, once the fringes of a great inland sea - so shallow marine fossils abound! It is located on the top edge of a natural bluff, enhanced by being an interstate highway cut, and is actually on the floor of an old stone quarry from the 1940’s - hence the probable erosion. At first glance I thought it the thorax of a trilobite, or an impression of one, but as it is the same color as the stone surrounding it, it just doesn’t seem to be right. I could use some knowledgable help. My guess is a ptychodus tooth - but I am way out of my depth here Thanks
  12. For anyone fond of Cretaceous sharks from the western Interior of North America, this paper is very cool and awesome focusing on Ptychodus. New Mexico MNH digital collection bulletin #81 https://nmdigital.unm.edu/digital/collection/bulletins/id/7316/
  13. Are these Ptychodus teeth

    Are these teeth from a shell crusher shark like the Ptychodus? Found in Greene county Alabama creek bed
  14. Can you find the shark tooth? (10)

    From the album Post Oak Creek

    I realize that a lot of my in situ shots are of ptychodus, but they seem to be more visible and photogenic. Taken 12/31/19.
  15. Ptychodus sp. Shark Teeth

    From the album Post Oak Creek

    One of my favorite teeth to find, Ptychodus was a large shark that likely feed on hard-bodied animals like shells, crustaceans, or maybe ammonites. Most of the teeth here are from P. whipplei but there are a couple that could be P. anonymus.
  16. 9/28/19 Trip

    From the album Post Oak Creek

    I found less stuff than last time, but I found a nice centrum and a shard of a mosasaur tooth. A couple teeth grouped with Scapanorynchus may be Serratolamna sp.
  17. Big teeth!

    From the album Post Oak Creek

    Large shark teeth including cretoxyrhina, cretodus, and ptychodus. (The left ptychodus would've been massive had it been complete.) Scale bar = 1 cm. Collected 7/18/19.
  18. Cretaceous Mix

    From the album Post Oak Creek

  19. Post Oak Creek

    I hit my honey hole at Post Oak Creek Texas again. I found a few good Ptychodus teeth, another crustacean and my first giant armadillo scute. it was worth the 5 hr round trip.
  20. Ptychodus

    From the album Post Oak Creek

  21. Ptychodus whipplei tooth detail

    From the album Post Oak Creek

    Tooth of P. whipplei. Collected 6/21/19.
  22. Ptychodus whipplei tooth wear

    From the album Post Oak Creek

    This P. whipplei tooth was well used. Collected 6/21/19.
  23. Can you find the shark tooth? (5)

    From the album Post Oak Creek

    Tooth of P. whipplei. Collected 6/21/19.
  24. Can you find the shark tooth? (3)

    From the album Post Oak Creek

    Tooth of P. whipplei. Collected 6/21/19.
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