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Found 31 results

  1. Welcome to my first Fossil ID Post! I bought this fossil at a Market in Johannesburg. The seller claims it to be a juvenile Mosasaur. The sediment layer seems to be derived from seabed but I am no expert. Seller claims to have retrieved the specimen from Morocco. Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Clade: Platynota
  2. Tylosaurus proriger tooth

    From the album Reptiles

    Tylosaurus proriger Found in the North Sulphur River, Ozan Formation Dated Campanian Stage of Cretaceous (≈80 mya) Measures 4.4 cm (1.7 inches)
  3. New Jersey Mosasaur tooth ID help

    Greetings! I recently found this partial (what I believe to be) Mosasaur tooth and the texture of the enamel isn't typical of the Mosasaur I have found. I was wondering if this is consistent with any particular species of Mosasaur or if it's just a different type of preservation than I am used to. It was found in the Monmouth County NJ Cretaceous and the bottom part of the tooth is broken. Thanks in advance for your help! -Frank .6 inch Two cutting edges
  4. Hi! I'm looking if anybody wants to trade mosasaurus or croc,gator teeth with me! I'm offering Miocene lake shells and plant parts which i've found in Marl stone mine in Popovac,they're 14m years old.If anybody is interested let me know
  5. North Sulphur river bones

    Went to North Sulphur river yesterday. Found couple bone fragments, not sure if there is enough for a positive ID, but hopefully someone will recognize them. Thanks in advance. 1. rib? are those teeth marks? 2. ? 3. Bony fish centrum? 4. ? 5. ? 6. Coral?
  6. Mosasaurus tooth?

    Hi all, Am I on the right track here? Is this a Mosasaurus tooth? It was found in Iron Ore Creek in Grayson Co. Texas. Upper cretaceous, Austin chalk runs throughout this area of Grayson co. so believe it's within the same strata as Post oak creek in Sherman. About 15/16" long and 3/8" wide.
  7. Maastrichtian Mosasaurus

    Hello everyone, I mounted this skull, but I'm not sure you have identified the species. I think it's Mosasaurus prognathodon, but I see a strong resemblance Eremiasaurus Heterodontus. What do you think? thank you Snen
  8. Mosasaur tooth

    A rooted tooth of a mosasaur.
  9. Mosasaurus jaw fragments

    Jaw fragments of a mosasaur.
  10. Mosasaurus vertrebra ?

    Today i bought this possible Mosasaurus vertebra. Its was found in Marocco and is very big with a length of 10 cm. What do you think ? I must say that i dont know anything about mosasaurus vertebras ... so please help me ID it Thanks !
  11. Hi all I just wanted to share a project that Ebrocklds and I finished up and shipped over to Europe a few weeks ago. It is a fantastic 14 foot Halisaurus sp? from Morocco. It is quite different anatomically form Halisaurus arambourgi in that is has several strange skull proportions and features, as well as a few skeletal anomalies. Its skull was 100% complete, which allowed us to do many comparisons. As you can see from the pictures, the parietal eye is raised nearly 1/2 inch above the rest of the skull. The Maxillary on each side at the nasal opening has a raised, cylindrical, ridge. The post-orbital/frontal are very thin and flattened and sit at a very strange angle that was not altered by compression. All-in-all, it is a very unique and interesting animal. (Yes those are my adorable daughters) Enjoy.
  12. Halisaurus arambourgi jaw

    A right maxilla of a small mosasaur.
  13. Halisaurus walkeri jaw fragment

    A small fragment of a left dentary of a mosasaur.
  14. Mosasaurus hoffmanni tooth

    Tooth of a mosasaur.
  15. Mosasaur tooth

    Tooth of a mosasaur.
  16. Mosasaur tooth

    Tooth of a mosasaur.
  17. 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 Maastricht there is another fossil location that lends it's name to a geologic age. The tiglien, which is during the lower Pleistocene, named after Tegelen. Part of the old roman city wall nearby. This museum also used to house the holotype of the original Mosasaur. Mosasaurus hoffmanni. Sadly it was taken as the spoils of war by Napoleon's army. Today the holotype is located in the Paris Museum of Natural History. So now there is only a cast of the holotype in the museum. This small glass enclosed area in the garden houses the holotype of Prognathodon saturator which is nicknamed Bér. The specimen consists of an mostly complete skull and a partial skeleton and was found near Maastricht. There are a number of articulated thoracic vertebrae, some limb elements and some other loose elements. Along with the mosasaur skeleton there were a lot of shark teeth (Squalicorax and others) found associated with it that suggests that the carcass was scavenged by sharks and other opportunists before being covered. I suggest viewing this on a cloudy day because the reflections on the glass can sometimes make it hard to see as well. Though the main attractions are the Cretaceous and Pleistocene fossils. There are also a few other cool things. An early relative of the Horseshoe Crab. A primitive spider.
  18. Fossil Collection 2015 Right Shelf Overview

    From the album Various

    Right shelf

    © &copy Olof Moleman

  19. How long is mosasaurus?

    Hello, I'm a new member to this forum and a year 7 student, and I'm wondering how long mosasaurus is? The sources I've found on the internet and in books vary dramatically (10m and 24m!). I'm fairly sure that the actual length is in-between these lengths but I'm not certain! Also, related to this problem, I've found it difficult to locate an up to date book/site that shows accurate and updated portrayals of dino's. Any help? greatly appreciated, Aaron UPDATE: Thank you all for these articles! A lot of it went over my head but I now the actual size now, 6 metres! Thanks SOOOOOOO much!
  20. I came across this Moroccan Mosasaur tooth ID'd as Prognathodon giganteus from Ouled Abdoun and saw that it has serration that's not usually seen on Mosasaur, at least from as far as I know: Close up of the serration: What do you guys think this could be from?
  21. Hey I have a collection of Mosasaur teeth that I have been trying to ID by looking around the internet for references, but to be honest, I am still pretty clueless and I can't quite really see any real difference or key features that define one genus from another, other than the Globiden. So I would like some help ID these teeth if anyone here who are familiar with these beasts could lend me a hand please: First, these are from Atlas Mountains specimens Tooth A (my guess is Prognathodon?) - length 5.45" Tooth B (Anceps?) - length: 4.62" Tooth C (another Anceps?) - length: 5.15" These are just the crown teeth - all from Khouribga Tooth D - length: 1.5" Tooth E - length: 1.7" Then there are the small ones, less than 1", all from Kem Kem, but I have heard that the small ones are nearly impossible to identify but here goes anyway in case if anyone can identify them: Anyway, really appreciate the assistance, thx
  22. Crimean Mosasaurus

    There was march of 2012. My mom, dad and brother went to near-city limestone quarry for a walk and for the fossil hunting. Unfortunately I worked that day and did not join them. Lady Luck smiled to that group of amateurs and they found something really special not only for us, but for the all region. In the white chalk wall appeared a little top of the brown claw. The “work time” became for their hammers. After few hammer stomps a part of the wall showed them their treasure, that was buried about 80 mln years ago. It was a few pieces of ancient bones. In that time nobody of us could understand what it is and nobody believed that it is possible for usual family like we are. Because not so much parts of fossil reptiles in our regions was found. Great thanks to the specialists who helped our family with determination. This publication was placed on regional forum, but I decided to show you our great find and share the joy and positive emotions with you. Crimea, Sevastopol, Balaclava, piedmont of Zagaytanskaya rock. 44°35'41''N; 33°37'17''E . Mesozoic Era, Upper Cretaceous series, Maastrichtian Founders Pologov V.I., Pologova N.I., Pologov S.V. Considering configurations of bones and their relative position in the rock- that bones are fragments of mosasaurus left and right sides of upper and lower jaws. Dimensions: lesser part: 6x8 cm, biggest 10x11 cm. It is interesting that dental alveolus arranged in pairs. Near the bigger external alveole, smaller internal. Dimensions of claws in that alveolus differs respectively. Claws a little bit curved. Sectional round-shaped, empty inside. Longitudinal striations. Cutting edges are on the fore and aft parts of the claw. Near that fragments of jaws there was concentration of some chitinous flakes (scales). Their attachment did not defined yet.
  23. So my lovely wife of 22 years decided to join me for a relatively short hunt in the North Sulphur River this weekend. She found a really cool set of articulated and joined Mosasaur tail verts. Too cool! Nothing I found compares to this, so I will not embarrass myself further. Jon
  24. Mosasaur jaws are one of the fossils that are very commonly available in the market, which can be suitable for novice collectors with moderate budget to get their hands on but also can be quite risky due to the many fakes, composites and restored specimens flooding the market. But they are still one of my favorite creatures that fascinate me to collect and study them as much as I can. I think I can pretty much tell a completely faked or composited specimens from the restored and genuine ones from looking at the differences in teeth on the jaw (using different species teeth to make a fake jaw) or how the jaws are unnaturally formed with lack of bone texture details. But when we look at restored specimens that probably used real mosasaur jaw it becomes much harder for me (and probably many others) to tell how good the restoration workmanship is, how much has been restored or how much materials are composite - at least on the more "natural-looking" specimens that are in a different price league than the common "composites & fakes" that you see all the time in the market. So I am wondering how the experts are able to tell which one has a better workmanship? For example this one: From what I gathered (and partly guess) this one is a restored specimen using real jaw piece from an actual mosasaur with some teeth replacement and refitting for decorative purposes. I can see the jaw bone seem to have bone grain and texture that looks authentic and to my knowledge, a composite made from grounded mosasaur bone and matrix wouldn't display this kind of feature, am I wrong? How would the experts weigh in on this specimen? And how does this specimen compare to another specimen (pictures in following post, since I ran out of upload limit for the original post) in terms workmanship and authentic feel for a restored mosasaur jaw? ……….
  25. Mosasaur Teeth

    Hi, I got a question: I have bought a tooth from the mosasaur Liodon. It is very find and all, but then i found this website, that said that the teeth from Liodon doesn't have any serrations. Then i got a little confused, because on the Liodon tooth i bought, i can clearly see serrations. So is this not a Liodon tooth after all, or is this just wrong information? Can somebody clear this out for me?
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