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Found 16 results

  1. 2 different mouthplates location: Peace river, Florida, USA Era:Mioceen My question to the field Are the plates from the same fishes? Greetings from the Netherlands Vincent
  2. Hope everyone had a great weekend! Got a few IDs to confirm and a couple to check before adding to my shadow boxes. Depending on answers, I might have to re-open one and squish a piece in. These were all collected from the Peace River with FRE guided tour on 26/12/23 (as in previous posts). side note: I took these photos through my lighted standing magnifying glass and was pleasantly surprised by how well it worked! I will definitely be continuing with this moving forward. Please excuse the very scratched measuring lines on the stand; proof of why it's important to wear eye protection and a mask during fossil preparation! 1. I think these are all turtle spurs. The last two images are the same object, but wouldn't fit well into a collage.
  3. Fin Lover

    Myliobatidae indeter.

    The literature reviewed shares a common belief that the genus Myliobatis has been, and continues to be, used as a “catch-all” genus within the Myliobatidea family. While the ray fossil record is extensive, incomplete specimens and a lack of sufficient extant material to compare it to has resulted in our inability to recognize generic differences in myliobatid dentitions. While some authors were confident identifying specimens to the genus level (and even reassigning specimens previously identified as Myliobatis to another genus), most included the caveat that we lack the knowledge and material necessary to definitively identify these specimens. A communication with David Cicimurri has provided valuable insight into this find : "As far as the taxon goes, I would identify it as “Aetomylaeus” sp., which is a type of eagle ray. I use quotes because, although the teeth look very much like those of modern Aetomylaeus, studies suggest that the genus had not evolved by the Oligocene, so we can’t call Oligocene species by that name. The species is either something in the lineage that leads to Aetomylaeus or is another taxon that convergently evolved a similar tooth shape and dental arrangement – wide symphyseal teeth flanked by several rows of elongated and diamond-shaped lateral teeth." References: Claeson, K. M., O'Leary, M. A., Roberts, E. M., Sissoko, F., Bouaré, M., Tapanila, L., ... & Gottfried, M. D. (2010). First Mesozoic record of the stingray Myliobatis wurnoensis from Mali and a phylogenetic analysis of Myliobatidae incorporating dental characters. Acta Palaeontologica Polonica, 55(4), 655-674. Cicimurri, D. J., Knight, J. L., & Ebersole, J. A. (2022). Early Oligocene (Rupelian) fishes (Chondrichthyes, Osteichthyes) from the Ashley Formation (Cooper Group) of South Carolina, USA. PaleoBios, 39(1). Cicimurri, D. J., & Knight, J. L. (2019). Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA. PaleoBios, 36. 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. Ray, C. E., & Bohaska, D. J. (2001). Geology and Paleontology of the Lee Creek Mine, North Carolina, III. Villafaña, J. A., Marramà, G., Hernandez, S., Carrillo-Briceño, J. D., Hovestadt, D., Kindlimann, R., & Kriwet, J. (2019). The Neogene fossil record of Aetomylaeus (Elasmobranchii, Myliobatidae) from the southeastern Pacific. Journal of Vertebrate Paleontology, 39(1), e1577251. Welton, B. J. (1980). Eocene neoselachians from the La Meseta Formation, Seymour Island, Antarctic Peninsula. Also visit these websites: https://www.app.pan.pl/article/item/app20080077.html (Chandler Bridge Fm.) https://escholarship.org/uc/item/0xv324c8 (Ashley Formation)
  4. Tjshort

    Found on Amelia Island Florida

    Trying to see if this is a mouthplate or just an odd shell. It is hard like bone.
  5. SharkySarah

    Hell creek scutes or mouth plates?

    Below are scutes or mouth plates from the hell creek formation. ID help needed. 1. 2. 3.
  6. Chuckfu

    Mouth Plate or tooth?

    Is this a mouth plate or a tooth? bonus points for coin identification
  7. Fin Lover

    Ray mouthparts in matrix

  8. My question is exactly in the title, Can you identify ray teeth without locality info? I got some as a gift a long time ago and have no information on location and age and was wondering if its possible to identify to genus or even family
  9. Notidanodon

    Show us your chimaeroids

    Hi guys, I thought I’d start a thread for what is in my opinion, one of the most under appreciated group of marine vertebrate fossils. Anyway, to provide some info on these ratfish and why I find them so interesting, primarily I am drawn in by their rarity. Unlike sharks, that shed their teeth on a regular basis, these fish have one set for life! Anyway, enough talk, more fossils, I will start with some very uncommon jurassic ones, if anyone has any, please add to the thread
  10. Good morning folks. I am asking for a verification/confirmation of this Stingray Mouth Plate. It was listed as Myliobatis stingray mouth plate from Morocco 50 MYO. Does this look correct?
  11. I've recently moved to coastal South Carolina in the Charleston area. I've also recently discovered the fun of hunting for shark teeth. On my last shark tooth hunting expedition I came across this interesting piece as I was searching a local beach. I think it may be a stingray mouth plate and would like someone to confirm my suspicion. Maybe it isn't even a fossil.... it is in spectacular condition and that makes me wonder/doubt it is. Any help is appreciated.
  12. Picked up on Myrtle Beach today. I've seen stingray mouth plates before and this reminds me of that, but they were always small detached pieces with the vertical lines - never inside something bigger. So maybe this is something else? A piece of shell maybe? Appreciate your thoughts. Thanks! Paula
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