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  1. I have been reading up on Moroccan mosasaurs and one point of confusion that I have run into is differentiating teeth from Prognathodon anceps and Prognathodon giganteus. There seems to be a great deal of overlap in their descriptions and occasional contradictions in the scientific literature. The first issue I’ve noticed is that there seems to be a great deal of confusion over what to even call the two species. Leiodon anceps (Owen, 1841-1845) was based on two tooth fragments and a section of jawbone. The genus was renamed Liodon by Agassiz (1846) because the
  2. The Amateur Paleontologist

    The giant mosasaur Prognathodon is now known from Denmark!

    A paper was recently published announcing the presence of Prognathodon in the Late Cretaceous chalk of Denmark. Prognathodon was a large, predatory mosasaur, well-known in the USA and Morocco, but known from other places e.g., the Netherlands. This new study is especially quite a big deal, because mosasaur fossils are incredibly rare in the Danish chalks. Prognathodon is now the 4th mosasaur known from the Late Cretaceous of Denmark, along with Mosasaurus, Plioplatecarpus and Carinodens. The Danish material is represented by two teeth - one of them being from the foss
  3. Hi everyone! This is a Prognathodon tooth from Oulad Abdoun Basin, Morocco. I know that lots of rooted mosasaur tooth are composite or fake, so I am so happy to get such a nice rooted tooth from a reliable seller! The root has groove, which is a place for a new growing tooth, and has a great texture. I wanted to soak this and wash out some dusts from the root, but I saw a thread that says I should not soak Moroccan fossils.
  4. Mantelliceras

    Mosasaur Jaw

    Hello everyone! I just acquired this piece but the only thing I know is that it's a mosasaur from morocco and it shows the lower jaw and the pterigoid teeth from the upper jaw. Can any mosasaur experts here help me identify the species? I'm thinking of prognathodon maybe?. Also as far as I know it's not fake or composite but would be great if you could confirm it. Thank you very much for your help, very appreciated! Greetings from Spain.
  5. Hello, i am a Student from Germany. I have recieved the Task of analyzing the huge fossil Collection of my School, which includes this tooth. According to a profile (that appears to have been made by a fifth or sixt-grader), it is from Oued-Zem / Khouribgha, morocco. My best guess is that it is from Prognathodon. It is about 2,5 to 3 cm Long and 1 cm thick. Many thanks in Advance!!!
  6. dinosaur man

    Prognathodon posterior teeth

    Hi again I have a question what did prognathodon use it’s posterior teeth for I was just looking at a skull and they seemed different do they have a different use then the other teeth? @Troodon
  7. PART 1, acquisition This piece was acquired via the "for sale" section of the Forum. The seller, @Fitch1979, Dries offered several jaw specimens, which were clearly superior to the mostly spurious Internet auction site examples. Dries provided some provenance on the fossil. It had resided in his family's private collection for over 26 years. It had been purchased at a gem and mineral show in Ghent from a collector who acquired the specimen in 1978. After a pleasant exchange with Dries, a bargain was struck and the specimen shipped on December 9, 2017. Since the piece
  8. Yesterday I made a visit to the Natural History Museum of Maastricht (The Netherlands) for my Birthday The museum is only a 40 minute drive from where I live and it showcases the entire natural history of the region, the cool thing about this museum is that the fossils which are showcased here are all regional fossils from The Netherlands, Germany & Belgium. I am starting the topic off with 2 pictures of the special exhibit called Microsculptures, which shows giant detailed photographs of insects to show how magnifecent they are. Then I went on to the "Mosaleum" w
  9. CSimpson176

    Large Prognathodon Jaws

    Posting this a few days after driving four hours down to Tennessee and picking this bad boy up! It’s definitely the center piece of my collection thus far. Also want to say a quick thank you to all those who helped ensure the authenticity of this piece! Wasn’t about to pay all that money without being 110% sure! I did manage to come at the right time though, the shop offered a 20% post Christmas discount which helped a lot also, any opinions on the "bite mark"? I'd be more than happy to upload more photos if needed!
  10. doushantuo

    Histology and osteology/Cretaceous

    LINDGR Lindgren, J., Uvdal, P., Engdahl, A., Lee, A. H., Alwmark, C., Bergquist, K-E., ... Jacobs, L. L. (2011). Microspectroscopic evidence of cretaceous bone proteins. PLoS ONE, 6(4), [e19445]. DOI: 10.1371/journal.pone.0019445
  11. Hey guys. Newb here. I picked up this mosasaur tooth at a local shop today, I’ve read through the forums about some fake settings with the jaws and whatnot but was wondering if just from the pics if anyone can tell me whether this setting with the root looks real, or did i just buy some teeth set in a fake mold.
  12. Hi everyone, With this thread I wanted to start a discussion about what the feeding habits would be for most mosasaur species, how you think they would have fed. I personally love mosasaurs, they are one of my favorite prehistoric animals for a number of reasons and I’ve recently even bought my first Prognathodon jaw and I also live in an area that is not only known for their fossils but also for the discovery of mosasaurs. I’ve been doing a bit of reading lately about mosasaurs but I can’t really find anything difinitive on their feeding habits. Their diet yes. B
  13. Wightlight

    Mosasaur tooth

    I got this tooth as a freebie when I bought some fossils a while ago. I know it's a mosasaur tooth of some description and my guess would be Prognathodon sp. based on how common they are, but I'd like confirmation (if possible) for my own peace of mind. I know it's not easy ID'ing based on tooth crowns, but hope springs eternal. The tooth is about 3.5 cm long.
  14. Kaiju Slayer333

    Prognathodon Tooth from Morocco

    From the album: My Fossils

    I found this tooth from Morocco I’m a shop in Portugal. While the root could be faked in someway. The actual tooth, is real. I did a post on this before but I took much clearer images for the ID for this later on. I decided to repost with these images.
  15. Kaiju Slayer333

    Prognathodon (Mosasaur) tooth from Morocco

    I found this fossil in Portugal in a little shop. The tooth was from Morocco and is likely a Prognathodon. While the root has been said by others to be likely fake, the crown (the main point of the fossil) is likely real.
  16. I got this jaw in the post today. It's 26 inches long, and seems to be the upper left jaw of a large-ish mosasaur, perhaps Prognathodon? The teeth don't provide much of a clue, since the crowns are, sorry to say, all added in afterwards. I knew this when I bought it, and I paid what I consider to be a fair price for a jaw of this size with botched-up teeth. My aim is ultimately to extract it, and mount it. At that point, I can sort the teeth out to a better standard, and replace the worst examples. I'm interested in any thoughts about the jaw in general - whether you se
  17. Max-fossils

    Mosasaur: Prognathodon?

    Hi all, Usually you see these fossils in the "Is it real?" thread, but I decided to make a change. This mosasaur block contains several teeth, and I think they are real, and it is possible that the block was found as such (if you think any of it is fake/reconstructed, let me know). As usual, it's from our favorite mosasaur location Khouribga (Morocco), meaning it's from the late Cretaceous (like all mosasaurs). Now I would like to put a species (or several species) on these teeth. Here's a list I found of the different mosasaurs found in Khouribga (it may be wro
  18. I was hoping some of our Mosasaur experts (@LordTrilobite @jnoun11) could lend me their opinion on the following Mosasaur from Morocco I want to purchase. I was told it is Prognathodon, agree?
  19. HamptonsDoc

    Prognathodon anceps

    What is the "anceps" in Prognathodon anceps? Is that the species name? I'm having a hard time finding anything online to explain other than some dealers selling some teeth on various sites. Sorry for my ignorance and thanks!
  20. LordTrilobite

    Prognathodon tooth

    Tooth of a durgophagous mosasaur.
  21. Prognathodon saturator 101

    prognathodon tooth

    i am certain this is a prognathodon tooth a tooth of my favorite mosasaur the fossils are real but the block its self is fordged henc a otodus tooth begin in the block
  22. I like Mosasaurs so I've been buying some cool stuff here and there for a while now. I have some loose teeth with and without roots and a few jaws. for a while now I've been noticing some interesting patterns. Or rather a single pattern that keeps showing up. I have 42 loose teeth and a number of these teeth have some wear patterns on them. Some just have some random wear here and there or tips broken or worn off of them. But a significant number of teeth have damage to the enamel on the front side of the tooth. Sometimes on the lateral side and sometimes on the labial side. Sometimes on both
  23. Maastricht Natural History Museum Mosasaur central This charming little museum in a historic city is absolutely worth a visit if you have any interest in the latest Cretaceous and Mosasaurs. The city of Maastricht was founded by the ancient Romans along the Meuse (Mosa in Latin, Maas in Dutch) river. The animals we know as Mosasaurs are named after this river. The great lizard of the Meuse. Near the city are deposits of the latest Cretaceous, the Maastrichtian, which is named after the city. There are several quarries that produce a lot of fossils. In the same procince to the north of
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