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  1. Edit* Title changed to say shark skeletal elements ( previously said bones). This is an interesting topic that was brought up by my mentor and vertebrate paleontology professor during a lecture about a year ago. He mentioned that for some reason there seems to be a higher occurrence of shark bones and relative scarcity of teeth in the Astoria formation. That is the verbage he used. I am willing to bet this is some kind of collection bias where people just aren't recognizing the teeth as often as skeletal elements for some reason. I haven't been able to find information on Google scholar or really anywhere else that has provided information on depositional environments that would favor the preservation of shark skeletal elements over teeth, especially where there are plentiful well preserved invertebrate shells. Most of the fossils are locked in concretions or embedded in concrete-hard sandstone. There is intermittent softer sandstone and siltstone, but seems like most of the vertebrate and invertebrate fossils occur in the harder layers. This is something that has interested me as a research topic, but I haven't been able to make it out in awhile to do any collecting of my own. It would be interesting to set up a transect say from Newport to Lincoln City, take a group out and just collect fossils over a period of time across the transect to get an idea of fossil type, frequency, etc. And see if there really is something lending itself to a higher frequency of shark skeletal elements. On a side note it does seem like there is an usually high occurrence of young vertebrates such as pinnipeds and whales in the sections of the formation I've collected. It would be interesting to hear your thoughts on the matter as well as any additional insights you may be able to provide. What do you think?
  2. News flash and request for near-future feedback! After a 12-year(!) hiatus, the Paleontological Research Institution (PRI) is about to reboot American Paleontologist, the old avocational paleontology standby, as a community newsletter. To do what I can to support this effort, I've signed on as a columnist, with a column called "The PaleoCommunity Organizer." It centers the community aspect of our shared avocation and looks at all the ways in which acting as a community can inspire and save avocational paleontology and help it thrive in the 21st century. And, well, it wouldn't be much of a column about community if it were just me talking. A crucial aspect is hearing from y'all, whether that means calling me out on something I missed, or naming a powerful example of something I only just touched on, or reframing the conversation as you see it. The community always knows more than I do. So, community, bring your feedback here to The Fossil Forum, where we can build on each other's ideas and craft a better avocational paleontology world for all of us. Action item: Look out for a followup post here on March 31, 2024, when American Paleontologist's first newsletter drops. That's when I'll ask y'all to get the discussion rolling on my column's first entry: "How Fossil Community Got Lost—and How We Get It Back." Stay tuned.
  3. The winner of the February 2024 VFOTM goes to... Araeodelphis natator (river dolphin) - Miocene, Calvert Formation - Maryland Congratulations to @shark57 !!!
  4. Hello all. I was hoping for additional insights on what this may be as well. I know this is a vertebrate bone of Cretaceous age found near block mountain outside of Dillon Montana during a classical mapping trip. On one side of the specimen there is a prominent yet thin plate of bone with a robust ridge along one margin. On the opposite side of the specimen is a rectangular structure which may be a scute or possibly another type of mineralized structure. Any insights are appreciated.
  5. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends March 9th. Be sure to vote in our other FOTM poll, HERE 1. Pachycephalosaurid (Stegoceras) squamosal section - Cretaceous, Dinosaur Park Formation - Steveville area, Newell County, Alberta 2. cf. Orthacanthus elasmobranch tooth - Carboniferous, Pennsylvanian, Portersville Limestone, Glenshaw Formation - West Virginia 3. Campodus sp. crusher shark tooth - Carboniferous, Pennsylvanian, Muncie Creek concretions - Missouri 4. Araeodelphis natator (river dolphin) - Miocene, Calvert Formation - Maryland
  6. 2023 VERTEBRATE FOSSIL OF THE YEAR (VFOTY) The winner of the 2023 VFOTY goes to... Crocodile skull - Lower Jurassic, Upper Lias - Yorkshire Coast, Whitby, England Congratulations to @LiamL !!!
  7. The winner of the January 2024 VFOTM goes to... Snapper (Lutjanidae) braincase - Early Oligocene, Ashley Formation - Ridgeville, South Carolina Congratulations to @Sonickmonx !!!
  8. Hi all, a family member found this 30 years ago near Anza Borrego in southern CA. Looks a lot like juvenile tortoises I've seen in the area. I'm aware that fossil testudines are known from the area, but 1) is this one?, and 2), is a family, genus or species level identification possible from this partial specimen? Thanks. (The ruler is in inches. The specimen itself is about 9cm x 7cm.)
  9. hsug1747

    Fish from Santa Barbara

    Hi everyone, this is a fish I found a few years ago in Santa Barbara. If anyone could help with ID, or provide any resources on fossils in the area it would be greatly appreciated. The fossil is in very soft shale, measures just over 3 inches head to tail, had lots of bivalve and gastropod fossils nearby. I can provide additional pics/info if necessary. Thanks!
  10. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends February 9th. Be sure to vote in our other FOTM poll, HERE 1. Bison sp. partial horn core/skull - Pleistocene - Kaw River, Kansas 2. Polyacrodus aff. brevicostatus shark tooth - Cretaceous, Early Albian, Lower Glen Rose Fm - Canyon Lake, Texas 3. Snapper (Lutjanidae) braincase - Early Oligocene, Ashley Formation - Ridgeville, South Carolina
  11. Can somebody help identify this fossil? Are these vertebrae from a marine mammal? If so, which one? This was found in a quarry in Miocene deposits in southern France. Thanks!
  12. The winner of the December 2023 VFOTM goes to... Pelagonithid bony-toothed bird jaw - Late Miocene / Pliocene - North Canterbury, New Zealand Congratulations to @mamlambo !!!
  13. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends January 9th. Be sure to vote in our other FOTM poll, HERE 1. Poebrotherium camel - Oligocene, White River Fm. - Sioux County, Nebraska 2. Pelagonithid bony-toothed bird jaw - Late Miocene / Pliocene - North Canterbury, New Zealand
  14. Fullux

    Panama City Beach

    Howdy all, Found these on a beach in Panama city a few years ago and I'd appreciate some help identifying them. The first one I originally thought was just a piece of turtle shell, but later while examining it, I noticed the presence of a root canal, which leads me to believe this is some sort of tooth. The second one I saw in my pan, and I just paused, cause I wasn't expecting to find land mammal material. I want to place this as Archaeohippus, but I'm not sure.
  15. The winner of the November 2023 VFOTM goes to... Platypterygius australis ichthyosaur - Early Cretaceous, Toolebuc Formation - NW Queensland, Australia Congratulations to @Huntlyfossils !!!
  16. Hi there. I found this on a field trip to a private quarry in Midlothian , TX (just south of Dallas). It was in limestone / shale in the ATCO formation, where there’s lots of shark teeth and fish bones. I’m pretty sure it’s been compressed as most of the shark spines I’ve seen are much more round and this is pretty oval shaped. Does anyone have any guesses as to species? Thanks in advance!
  17. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends December 9th. Be sure to vote in our other FOTM poll, HERE 1. Platypterygius australis ichthyosaur - Early Cretaceous, Toolebuc Formation - NW Queensland, Australia 2. Mosasauridae indet. mosasaur - Late Cretaceous (Maastrichtian), Severn Formation - Maryland
  18. Mochaccino

    La Brea Tar Pit Bones

    Hello, I have this piece from the Pleistocene-aged La Brea Tar Pits of LA county, California, USA. Alongside the beetle, it has several bones embedded in it which were just described as "mammal". It's possible that more than one species is represented. Can I get a more precise identification for them? Or would I need further prep for that? I know next to nothing of vertebrates but my understanding is that for long bones, the bone ends are most important for identification. Thank you.
  19. The winner of the October 2023 VFOTM goes to... Pachycephalosaur skull dome - Late Cretaceous (Campanian), Dinosaur Park Fm, (74.4 Ma) - Newell County, Alberta, Canada Congratulations to @musicnfossils !!!
  20. Hi I am in the Florida keys and I found so many coral fossils it was amazing. However this one I can’t tell if it’s a stem or a vertebrate. It is about the size of a wine cork and about as heavy as my small pair of craft pliers. I’m sorry I don’t have a better measuring scale. Lots of crystal and agate like texture. IMG_1776.mov
  21. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends November 9th. Be sure to vote in our other FOTM poll, HERE 1. Ganopristis leptodon oral tooth - Cretaceous (Maastrichtian), Nekum Limestone - Sibbe Limestone Quarry, Netherlands 2. Pachycephalosaur skull dome - Late Cretaceous (Campanian), Dinosaur Park Fm, (74.4 Ma) - Newell County, Alberta, Canada 3. Chomatodus sp. chondrichthyan crushing tooth - Mississippian, Bangor Formation - Vulcan Quarry, Lacon, Alabama 4. Syngnathus avus pipefish - Miocene, Monterey Formation - California
  22. The winner of the September 2023 VFOTM goes to... Hadrosaurid tooth battery - Late Cretaceous, Dinosaur Park Frm - Newell County, Alberta, Canada Congratulations to @musicnfossils !!!
  23. JamieLynn

    Vertebrate Bone Oklahoma

  24. The winner of the March 2023 VFOTM goes to... Mammuthus columbi, Columbian Mammoth, lower left molar - Undifferentiated Pleistocene Sands - Hardee County, Florida Congratulations to @Meganeura !!!
  25. Check the entries below carefully and cast your vote! PM me if you notice any errors with the entries. The poll ends October 9th. Be sure to vote in our other FOTM poll, HERE 1. Hadrosaurid tooth battery - Late Cretaceous, Dinosaur Park Frm - Newell County, Alberta, Canada 2. Peripristis semicircularis tooth - Pennsylvanian, Bond Frm - LaSalle County, Illinois 3. Wombat skull (Vombatus ursinus) - Pleistocene (unnamed formation) - Coolah, NSW, Australia 4. Ichthyosaur teeth - Upper Lias, Lower Jurassic, Falciferum Biozone - Whitby, Yorkshire, UK 5. Enchodus sp. fish vertebra - Cretaceous (Maastrichtian), Nekum Chalk - Province de Liège, Belgium 6. Partial muskrat skull - Early to Mid Miocene, Calvert Frm - Calvert County, Maryland
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