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  1. Halisaurus

    Mosasaur Teeth ID

    Hi! I have a mosasaur teeth and I'm pretty sure it's Halisaurus, but I still need some identification. Thank you! (This picture is the teeth compared to quarter of Canada)
  2. Hello!!! On this topic, I would LOVE to see everybody's mosasaur fossils!!!!!!!!!!!!! Here's my Halisaurus (probably) tooth fossil!
  3. Jayme

    What we have so far

    This is our collection so far of our favorite finds. All found at Holden beach. Pics consist of shark teeth, mosasaur teeth, horse teeth, sloth tooth, barracuda teeth, stingray teeth, sawfish teeth, enchodus teeth, enchodus jaw fragments, scute, ivory, mouth plate for puffer fish, shark vertebrae, mosasaur vertebrae. We accumulated this in 10 months and they were the best 10 months. My next goal is to start searching creeks. I'd love to dive too. Lots of different adventures to look forward to.
  4. North

    Mosasaur tooth id

    Hi. New collector here and first time here at the forum. Im trying to collect some mosasaur teeth and realized that Im unable to recocnize Eremiasaurus heterodontus tooth. My first thoughts with this tooth was that its an prognathadon kind tooth (Thalassotitan), but I could use some help so I know was my first thoughts wrong and how I recognize the Eremiasaurus tooth in the future? Never seen any and don't know what too look for. Tooth is 3cm. Quite smooth cutting edge on a front. Moroccon. Thanks for the help.
  5. I took off early last Wednesday morning and drove to the North Sulfur River. I hadn't been there since early in the year and wanted to see it again, even though I knew that after such a long dry spell, it might be tough finding much. That thought proved to be right. The stretch of river bed I walked was completely dry, and had obviously seen lots of visitors. I hiked quite a distance, slowing down in all the areas that had been productive in the past, but picked up nothing. So I put on the kneepads, and began searching for smaller fossils. I've always had a tough time hunting NSR for sma
  6. Hi mosasaurs lovers, I looked around on different american fossils web sites , and I found, is nowhere a description or list about different species of Mosasaurs from Morocco . So I'll try humbly to fix it . Feel free to correct me if you see something wrong. The Moroccan phosphate history began in 1921 , Moroccan phosphate mines operate three layers of phosphates . Level 1 : Ypresian phosphate bed Level 2 : Thanetian phosphate bed Level 3 : Maestrichian phosphate bed Level 4 : Maestrichian grey phosphate at Sidi-Chenan quarry, ben guerir and youssouf
  7. Hi All! I once again come to you for expert opinion and input on a Mosasaur skull/ The anatomy is a bit more accurate, but I cannot say for sure if it is a genuine fossil. Any insights would be much appreciated as far as if this is a composite specimen or looks to be from the same extraction (which I doubt) I am mainly curious if the majority looks authentic or somehow synthesized. Also the seller identified this as a Hainosaurus: the slender skull seems accurate but the teeth running to the end of the snout does not align with popular scientific finding/opinion
  8. Hello! I am trying to clean this beautiful mosasaur pictured below, but I am really struggling with some old paleobond thats already been used on it. I have been somewhat successful with using a liberal amount of acetone on the bone, which I scrub in with a toothbrush. This has worked, but there are certain regions where the the glue was used on gypsum crystals and model clay, which has effectively cemented the bones of the lower jaw together. I've also been using a regular paleoarrow. My goal here is to get it as clean as possible, NOT to specifically separate the nat
  9. About 3 weeks ago I wrapped up my half year of North TX adventures with one final Kamp Ranch hunt and a beautiful pliosaur tooth to boot. Since then I've made my move five hours south to San Antonio and have endured the first two weeks of dental school. It's been an adjustment, but so far things have gone smoothly I'm happy to say. Although I hadn't done any hunting in that time span, I've been putting in some time towards researching sites in this new section of the state. I guess the symptoms of fossil withdrawal were starting to hit hard yesterday, so I picked a few promising spots from my
  10. I recently saw a globular mosasaur tooth up for sale labelled as Globidens phosphaticus. I am conscious, however, that a number of teeth labelled as Globidens are in fact from Igdamanosaurus, Igdamanosaurus aegypticus in particular, so is this tooth actually a Globidens? Thanks in advance for any guidance Othniel
  11. I have been debating a weighty decision to acquire this mosasaur skull, does this seem authentic to a more experienced eye?
  12. Hello, everyone! Back in February I was hunting in the North Sulphur River, and I found a few fossils that I am curious about, as well as a broken artifact. If anyone could give me any insights on these pieces, I would be grateful! 1: Pictures 1-3 are of the artifact. 2: Pictures 4-6 are of a tooth. To me, it seems mor conical than a shark tooth, but it does have a flat part underneath. 3: Pictures 7-8 Unknown 4: Pictures 9-11 Unknown 5: Pictures 12-14 Unknown
  13. I have often seen teeth for sale labelled as "Liodon anceps" and on occasion "Mosasaurus anceps". My understanding is that the genus is dubious, and I personally suspect most material labelled as Liodon is actually from a species of Prognathodon of some description, but I'm not sure the exact current state and would appreciate any guidance. Also, should this topic be in the wrong place, my apologies. Thanks in advance for any information Othniel
  14. Hello @pachy-pleuro-whatnot-odon I will tag you here again because I have seen in other posts that you have some knowledge about this. In this big mosasaur jaw plate, as they normally do in Oued Zem, it's covered in white glue. I want to try to take out the white glue layer from the bones without touching the matrix. I have started doing it with a scalpel. But obviously is a lot of work, i have seen in another posts the recommendation of using acetone. If i use a cloth with acetone and just use brush the bones carefully will this work? Is there another way? And it's a good idea to
  15. LordWampa

    Mosasaur teeth ID

    I have this 3 mosasaur teeth form oued zem @pachy-pleuro-whatnot-odon @Praefectus. TOOTH 1: TOOTH 2: TOOTH 3: Just be general shape and size I guess all of them are thalassotitan, 1 being the most obvious one. But why 2 and 3 are more curved, it's because are probably from the back of the jaw? And why 3 doesn't have a mesial carina and the other two yes, also because of the position in the jaw? My general knowledge with thalassotitan is that as you go back in the jaw tooth appear to
  16. Per Christian


    @jnoun11 @pachy-pleuro-whatnot-odon Could this tooth be stelladens? I have no idea what species it is but the carinae on the side makes me wonder if it's Stelladens
  17. uller6


    I found what I think are some mosasaur parts in Maryland. The site I was looking is an ~80 MYO marine site in the severn formation in Prince George's county just outside of DC. Here are a few pictures of the best pieces - a big tooth, nice neural spine, and a smaller vert. Am I correct thinking this is mosasaur? If so, potentially either a Prognathodon or a Hoffmanni? These are not in the best state of preservation, but typical for this location.
  18. Hello everyone! I'm new here and just a paleontology fan. I love Mosasaurs and I always wanted part of a jaw. I recently saw a post on a website that I'd purchased items before, so it is trusted by me. I found this mosasaur jaw at a very reasonable price but I doubt if it is 100% original or a composite. Size of jaw is 24 x 7 x 2,5 cm. Could someone help me decide whether or not to buy this piece? Thanks in advance (attached all the available photos) MVI_8930.mp4
  19. Notidanodon

    North sulphur river mosasaurs and fish

    Hi guys, I recently trade for these, and I was wondering if it was possible to assign them to a species thanks 1. 2. 3. looks like a bit of fish rostrum? 4. best preserved one, the enamel has regular flat edges, like a polygon I guess 4. enchodus libycus? thanks
  20. So, some of y'all know I am obsessed with finding a mosasaur tooth. I found a new spot in Travis County that yielded some nice Eagle Ford stuff (ptychodus, scapanorynchus and ptychotrygon). It's probably a fish tooth, but MAYBE it's a tiny mosasaur?? I have consulted an "expert" (hehehe) we all know and love @Jared C and says 65% mosasaur. What do y'all think?? It's 1/4 inch.
  21. Hello, I will tag you directly @pachy-pleuro-whatnot-odon @Praefectus. From this jaw which measurement should one take to estimate the full size of the specimen being this a thalassotitan atrox? I know head to body ratio of thalassotitan ies 1:8 more or less, what I am not sure is here which would be the correct measurement for the head size. From point A to B measures 135cm. Would this be the right measurement? Then full size 135*8/100= 10,8m more or less?
  22. Guns

    Mosasaur humerus ?

    Hello , Is this a Mosasaur sp. Humerus ? Locality : Oued Zem (Morocco) , Basin Abdou Ouled formation . Thank you in advance
  23. Hello everyone! This is a partial mosasaur jaw with other associated bones i found in the Early-Mid Campanian Woodbury Formation of New Jersey over the summer. One of my best finds to date.
  24. Hey all! It's good to be back and writing a trip report again - I've certainly been busy this summer. As some of you may recall, my step brother and I found a basal mosasaur in September of 2021. I haven't spoken much about it publicly, but rest assured it hasn't been forgotten! Research and preparation of the specimen is reaching a fever pitch this summer, both of which I'm happy to say I'm actively involved in. The reason for the silence has been to avoid leaking details that might scoop our paper. However... This year at A&M I'm participating in a grant for
  25. Hey all! It's good to be back and writing a trip report again - I've certainly been busy this summer. As some of you may recall, my step brother and I found a basal mosasaur in September of 2021. I haven't spoken much about it publicly, but rest assured it hasn't been forgotten! Research and preparation of the specimen is reaching a fever pitch this summer, both of which I'm happy to say I'm actively involved in. The reason for the silence has been to avoid leaking details that might scoop our paper. However... This year at A&M I'm participating in a grant for
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