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  1. Sonickmonx

    Chandler Bridge "Micro" teeth ID

    I have been working on sorting teeth I've collected from the Chandler Bridge Formation (Oligocene, ~28 MYA) from one site by species. I've not put adequate time into learning how to differentiate the smaller teeth such as these, and am working on filling those gaps in my knowledge. Here I have isolated 6 "distinct" types of teeth that I am attempting to put a name on. Apologies on the photo quality, I was in a bit of a rush, hopefully there is enough detail to understand the general characteristics I am attempting to distinguish between. 1. Wide root, flat and, typically, curved to one side. Is serrated from where the enamel meets the root all the way down onto the blade. 2. Wide thin root, thin straight blade, serrations. 3. Almost identical in shape to number 2, except straight blade with no serrations. 4. Larger teeth in general compared to the others, curved and straight blade with nos errations, has enamel "wrinkles" similar to serrations near the root only. 5. Very stubby root (horizontally compressed and somewhat more bulbous than the other teeth). Long, straight blade with no serrations. 6. Smaller in general than the other teeth. Serrations along root, but not on the blade. Blade is slightly curved. These are my proposed identification of the teeth: 1. Reef/Requiem shark upper teeth of some kind 2. Unknown 3. Lemon shark lower lateral teeth 4. Lemon Shark upper teeth 5. Lemon shark lower central teeth 6. Requiem shark lower teeth
  2. Hi, appreciate any ID help on this one from Chivo Canyon in Southern California. About 4-5" in diameter found inside of a roughly 1 foot diameter rock. The area is known for Eocene and Oligocene period fossils. Guessing this may be a sponge, coral, or possibly echinoderm like a Sea Urchin. Stumped on the ID so far. Most of the other fossils in the canyon are mollusks and gastropods. Thanks! -Chris.
  3. Just posting some pics of some finds from Chivo Canyon from 2020 and 2024. Would really appreciate any ID inputs on the Unknown Fossils especially the roundish one with many circles in it. It was roughly 4-5" in diameter in the center of a roughly 1 foot diameter rock. Guessing Sponge, Coral, or may an Echinoderm like an Urchin. The Chivo Canyon area is known to have fossils from the Eocene, and Oligocene periods. There are also a couple other unknown fossils which could be bones but not sure. The Tower Snails or Turritellas are probably mostly Turritella Uvasana. I don't know what the other Gastropods are. Thanks in advance for any ID ideas! -Chris.
  4. I am excited to finally announce my first contribution to science! This is a section of dentary/beak of a Pelagornis cf. sandersi from the Ashley Formation in Summerville, South Carolina. This was found in December 2023 and has been donated to the new Charleston Center for Paleontology, where it will reside in their collections. A paper featuring it and other Pelagornis sandersi fossils from the area (which there aren't many of) is in progress. Here it is after prep:
  5. In the U.S., Otodus angustidens teeth seem fairly common (primarily from South Carolina). From scouring the web, it looks like O. angustidens can also be found in at least in a few other countries, including Australia, Germany, Kazakhstan, and Mexico. However, I very rarely see these pop up, whether it's for sale or otherwise. In contrast, I see other members/stages of the chronospecies--obliquus, auriculatus, sokolovi, chubutensis, megalodon--show up not infrequently from multiple locations around the world. Is this because there are fewer accessible Oligocene-aged marine deposits globally, more restrictions on fossil collection and/or export where these deposits do occur outside the U.S., or for other reasons? Do you know of any other countries besides those I've listed where angustidens are found? If you have any non-U.S. angustidens teeth in your collection, please also do share photos! This is the only non-U.S. one I own, from Baja California, Mexico.
  6. debivort

    Unidentified jaw?

    From the album: Chandler Bridge Formation Microfossils

    Perhaps a piece of a pharyngeal plate?

    © CC BY-NC-SA 4.0

  7. debivort

    Unidentified

    From the album: Chandler Bridge Formation Microfossils

    A grinding plate or gastric mill?

    © CC BY-NC-SA 4.0

  8. oilshale

    Trachinus minutus (Jonet, 1958)

    From the album: Vertebrates

    Trachinus minutus (Jonet, 1958) Early Oligocene Rupelian Jamna Dolna Poland
  9. Neanderthal Shaman

    Pulalius vulgaris

    Far from perfect, but a considerable improvement over the last one.
  10. Fin Lover

    angustidens

    References: Gale, B., Gale, P., & Gale, A. (2020). A Beachcomber's Guide to Fossils. University of Georgia Press. Miller, A., Gibson, M., & Boessenecker, R. (2021). A megatoothed shark (Carcharocles angustidens) nursery in the Oligocene Charleston Embayment, South Carolina, USA. Palaeontologia Electronica, 24(2), 1-19.
  11. From the album: Fossils

    1.5 inch lamnid type shark vertebra in matrix from the New Bern quarry. Not sure if this is from the Oligocene River Bend Formation or the Eocene Castle Hayne Formation. If you think you recognize which formation this is from, leave a comment.
  12. Fin Lover

    O. angustidens 2.14.24

    From the album: Fin Lover's South Carolina Finds

    The missing cusp is a shame!
  13. Neanderthal Shaman

    ID for this Lincoln Creek Formation Crab?

    It looks different from Pulalius Vulgaris, has a more flattened carapace, and one claw is noticeably larger.
  14. Neanderthal Shaman

    Falling for the same trap twice

    Finished up the 2nd Pulalius of my career. Overall I am pleased with it, but I have had to endure the great disappointment of having the claws cave in on me. On the left, just part of the claw broke off; hardly noticeable. On the right the whole propodus crumbled, a great tragedy considering how beautiful it was...you could see all the little nodules on it. Perhaps I have to reevaluate my desire to expose the whole front side of the claw...the fact they are so small and hollow tells me I may end up with this result over and over again if I keep being greedy.
  15. Hi all, I recently came across the enigmatic taxon from South Carolina (and apparently New Jersey) - Conosaurus Bowmani. It was named in 1851 from the teeth depicted here, found in the Oligocene either Ashley or Chandler Bridge formations It was misidentified first as a mosasaur (hence saurus suffix) and had been suggested to be renamed conosaurops, but that doesn’t seem to have caught on. Only a few specimens have ever been found that I am aware of, primarily teeth and a couple jaw segments. Two of which were in a previous post by ClemsonSkulls which I was reading this morning, which likely came out of the eocene in a SC limestone quarry. I also see mentions of it from the Cretaceous of NJ. I am curious if anyone has specimens of or knows anything more about this taxon. I have located 4 references for it, including some great descriptions of its tooth shape, but as far as I can tell there have been no elements past the jaw that have ever been ascribed to this ferocious predator, and there is no clue what it is or looked like. Hoping someone knows something more! Thanks all!
  16. Fin Lover

    angustidens

    References: Cicimurri, D. J., & Knight, J. L. (2009). Late Oligocene sharks and rays from the Chandler Bridge Formation, Dorchester County, South Carolina, USA. Acta Palaeontologica Polonica, 54(4), 627-647. Gale, B., Gale, P., & Gale, A. (2020). A Beachcomber's Guide to Fossils. University of Georgia Press. Miller, A., Gibson, M., & Boessenecker, R. (2021). A megatoothed shark (Carcharocles angustidens) nursery in the Oligocene Charleston Embayment, South Carolina, USA. Palaeontologia Electronica, 24(2), 1-19.
  17. Sonickmonx

    1.5" Pristine Angusidens

    From the album: Sonickmonx's South Carolina Finds

    Beautiful angustidens, I will never complain about a perfect tooth.
  18. Sonickmonx

    First Angi

    From the album: Sonickmonx's South Carolina Finds

    This was my first angi, and maybe my second shark tooth ever. Still holds a very special place in my heart.
  19. Sonickmonx

    Parotodus sp.

    From the album: Sonickmonx's South Carolina Finds

    Some species of Parotodus. There is some speculation it is an unnamed species.
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