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  1. I believe this is also part of a Mosasaur, but unlike the 100 other vertebrae I have, this one is concave on both ends. All of the other are convex on one end and concave on the other. It does not appear to have been broken off on either end. The piece appears agatized all over which would suggest that it was not broken )at least to me) If this is from a mosasaur, is it a vertebrae, or some other part of the animal?
  2. Stormywx

    NSR please help identify

    I have a couple of these, this is the best specimen. I think they are from a mosasaur but only because they were found on the NSR. There are two indentions/holes that don't show up that well in the picture. The first picture shows the indention the best, there is a corresponding one on the other side. I apologize the lighting didn't make that more clear. If it helps in identification, I can retake pics.
  3. I'm fairly certain this is a mosasaur vertebrae. Found on the north Sulphur River near Ladonia, TX. Like most items found there, there is some damage caused by tumbling down stream.
  4. I believe I have made quite well with collecting Moroccan mosasaurs, so I wish to set my eyes for new goals. And first US mosasaur material is already heading its way. I have been hoping to learn more about American mosasaurs in general and also basic tooth characteristic of more common species. Only one Im relatively familiar with is Tylosaurus proriger. With Platecarpus tympaniticus only by few articles. I managed to find information about most formations where material seem to come from, but not Ozan fm. What species were present besides Tylosaurus proriger? Thanks for replies.
  5. Hello, everyone! Below are a few finds from the North Sulphur River and Post Oak Creek, and I’d love to get some help with identification. The ruler is in centimeters. 1. This first picture includes two mammal teeth (top two)(fossilized or no?), ???, and a small bone that appears to be fossilized. these were found at Post Oak Creek. 2. This bone was found at the North Sulphur River. 3. Nautilus found at NSR. Could anyone help with identifying the species? 4. Jaw fragment? Found at NSR. 5. Coprolite? It appears to have fragments of bone(?) in it. Found at NSR. 6. I found this tooth at NSR a while back, but someone recently IDed it as Latoplatecarpus (mosasaur). I can’t find too much literature on Latoplatecarpus; could anyone give me more information on this tooth and the animal it comes from? Thank you!
  6. I need help with a couple of ID's.... The first one is a shark tooth, from the east coast of the USA - most likely from the Meg ledge. I'm not sure if it's a Carcharodon or Isurus tooth. The root shape looks more Isurus-ish but I'm not 100% which is why I'm asking here. The other one is an awesome Mosasaur tooth in matrix (Moroccan in origin, if that wasn't obvious haha)... does anyone know the genus of this tooth? It doesn't look like the typical Prognathodon teeth often seen in natural matrix. The other fossils within this matrix have me very curious too.... can anyone ID the shark tooth and other random fossils? There is a good size chunk of bone in there too. The hourglass(ish) shaped fossil might be a vertebra ...?
  7. HunterLacrosse

    Moroccan Mosasaur ID

    hi I recently wanted to find a Tylosaurid tooth from Morocco, but I'm confused about the tooth morphology of this ID. Because I found that some teeth described as Tylosaurid had very distinct protruding prisms (likes figure 3 and 4) on their crown surfaces, while some teeth were indeed relatively smooth (picture 1 and 2). Which one is correct?
  8. Hello, all. I browsing online on online auction site and came across these “Mosasaur vertebrae.” They are in a set, and are fairly expensive to me, as I only get pocket money. I was clarifying to see as to whether they are real. They have been around a bit, so I am not sure as to whether that is a bad sign or not. I can upload more images if needed.
  9. You may or may not know that I have been obsessing over finding a mosasaur vertebra and tooth. I am lucky to live in Texas where fossils are plentiful in some areas but the most productive mosasaur area is still 6 hours drive from me. So I don't get there often and the few times I have.....no verts or teeth for me. I am not complaining (too much) because I have found other great things in the North Sulphur River, but not the mosie vert or tooth of my dreams. I am lucky to have friends who hunt there regularly who feel sorry for me and give me verts and even a lovely big tooth. But I DIDN'T FIND THEM. I do know that mosie stuff can be found in Central Texas where I live (thanks to @Jared C and his amazing adventures) I know they can be found (although very rarely) in our local creeks and such. So of course I keep an eye out while hunting but with no real hope of finding them. But I hope anyways! Which brings me to today....which I count as part of my birthday weekend (birthday was Friday, but you know.....weekend still counts! ). Went out on a little fossil hunt to a new site that a friend told me about...lots of baculites (which are relatively rare here in Central Texas) and lo and behold.....I FOUND MY VERT! And not two feet away....a little tooth! Mother Nature decided to gift me not just one, but TWO of my bucket list fossil finds today! Granted, they are pretty busted up and the tooth is not complete, but WHO CARES! I FOUND A MOSASAUR VERT AND TOOTH practically in my own backyard!!!! Turns out this little exposure is Ozan Formation and I can't wait to get back out there again....after a good rain! And, to top it off, found a complete ammonite in addition to some lovely gastropods and about a billion baculites. It's no mosie in situ, but I'll take what I am gifted. Thank you Mother Nature!!!
  10. North

    Interesting mosasaur tooth.

    This tooth looks bit like one of Xenodens calminechari, so I would like to get opinions could it be one or perhaps something else. Marocco, Oued zem. Crown H: 1.0cm, L: 1.0cm, W: 0.6cm.
  11. 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 youssoufia Level 5 : Maestrichian, grey phosphate,white bones: ben guerir and youssoufia level 6: Maestrichian, grey phosphate,white bones: ben guerir and youssoufia Most of the material on a market belong to oued zem and sidi -daoui zone; even though you will find them under Khouribga denomination, nothing comes from Khouribga... Of course, mosasaurs belong to the level 3, and 4 different species are studied by scientists of the French Museum of Natural History in Paris . Today the last record of different mosasaurs species is at list 18 and probably 20. (personal opinion ) Listed like below : †Halisaurus. arambourgi .(Bardet, Pereda Suberbiola, Iarochène, Bouya & Amaghzaz, 2005) †Halisaurus.sp not described yet †Halisaurus walkeri .(Lingham-Solier, 1998) ( i used this name temporarily, until one studie about this mosasaur show-up ) †Prognathodon sp Dollo, 1889 †thalassotitan atrox 2022 ex †Prognathodon anceps ex leiodon anceps slender form massive form perhaps sexual dimorphism ( personal opinion ) †Prognathodon solvayi Dollo, 1889 †Prognathodon hudae kaddumi 2009 †Prognathodon. currii (Christiansen & Bonde, 2002) †Eremiasaurus heterodontus , gen. et sp. nov sp ( AR. H. LeBlanc, M. W. Caldwell, and N. Bardet. 2012) †“Mosasaurus" baugei Arambourg 1954 ( Mosasaurus beaugei Arambourg, 1952 (Squamata, Mosasauridae) from the Late Cretaceous phosphates of Morocco Nathalie Bardet , Xabier Pereda Suberbiola , Mohamed Iarochene , Fatima Bouyahyaoui , Baadi Bouya , Mbarek Amaghzaz . 2004 ) †Mosasaurus hoffmanni Mantell, 1829 †hainosaurus boubker, 2022 slender form long premaxillary like tylosaurus proriger massive form short premaxillary like hainosaurus personal constatation † Stelladens mysteriosus (Nicholas R. Longrich , Nour-Eddine Jalil , Xabier Pereda-Suberbiola and Nathalie Bardet 2023) † Gavialimimus almaghribensis caldwell et al ,2020 ex: Platecarpus ptychodon Arambourg 1954 †Globidens. phosphaticus (Bardet, Pereda Suberbiola, Iarochène, Amalik & Bouya, 2005) †Carinodens belgicus ( N. Bardet, X. Pereda Suberbiola, M. Iarochène, M. Amalik, and B. Bouya. 2005) †Carinodens minalmamar. (A.S. Schulp, N. Bardet& B. Bouya. 2009) †Harranasaurus khuludae. (kaddumi.2009) †Globidens simplex (LeBlanc, Aaron. (2019) †Xenodens calminechari (Longrich, N.R.; Bardet, N.; Schulp, A. S.; Jalil, N (2021))
  12. Yesterday, Longrich et. al published a new genus from late maastrichtian of morocco. Texas's very own Mike Polcyn is second author on the paper. The paper establishes tribe Selmasaurini to describe the clade consisting of Selmasaurus, Gavialimimus, Goronyosaurus, and now Khinjaria. As you can see - it's an odd mosasaur. It's thought that Plioplatecarpine diversity receded as the Cretaceous ended, so alone on the basis of it's age, Khinjaria is unusual. But, it's also very large for a plioplatecarpine, at 8m (26 feet), and has unusual skull morphology: Short snout, big teeth, and tiny eyes. I'm having trouble getting the paper to open, so I'll just link the wikipedia instead. https://en.wikipedia.org/wiki/Khinjaria
  13. Hi All, I found this tooth sifting in one of the Cretaceous brooks in Monmouth Co., NJ. during a trip around November last year I wasn't sure what it was at first (initially thought talon possibly from something more recent), however after showing photos to a few local folk more familiar/knowledgeable with the fossils in this area (Thanks @frankh8147!), the consensus was, it's a very compressed Mosasaur tooth. Makes sense as Mosasaur teeth can be found here on occasion, and this tooth has several common features. However, I've had a couple individuals suggest theropod tooth when I initially shared it in a couple groups back in November. This was based on the compression of the root. I'm still leaning towards Mosasaur, but recently a different person brought up the theropod theory, so I thought why not throw it up here for opinion. Multiple photos, some redundant (have done a couple "photo shoots" with this one lol). If photos of any specific area would be beneficial, please let me know. Thanks in advance for your feedback/opinions! Truly appreciate the help.
  14. Slow Walker

    Tooth id?

    Trying to ID these teeth from Pierre shale sd. Hard to get closer photo without blurring. Guessing mosasaur or plesiosaur but wondering if species type is possible. Thanks
  15. Found possible skull but still unearthed. This point fell off which had others in a row, like a jaw. I took a pic before gluing it and plastering it up. Sorry for poor pic. Wondering if anyone can tell if it's tooth. And if so from what. Thanks
  16. Well, it's taken me a lot longer than I thought it would to write the second part of this trip report, mostly because I've been busy with school and several trips to other places across Texas collecting fossils, but also because I must have made about nine trips to the particular Eagle Ford formation creek site I wrote about in the first post. I've got a lot I could say, but I'll narrow it down to just the most exciting finds - I've still got another trip report covering two trips I took to Jacksboro/Mineral Wells and Post Oak Creek to write as soon as I'm done with this one! I'll link that first trip report here for anyone that wants to read it: http://www.thefossilforum.com/index.php?/topic/126948-texas-shark-tooth-extravaganza/&tab=comments#comment-1377551 As I had located the specific lense in the shale with the most shark teeth on the very same day that I discovered the site, the next couple trips were spent breaking it up further and seeing what else I could find in the exposed sections. Although I came away with a respectable haul of nicely-preserved teeth I didn't find anything I hadn't already found before. Getting bored of finding the same Ptychodus and Squalicorax teeth I decided to climb up the small and now-dry waterfall that stemmed from a creekbed sitting almost on top of the shark teeth lense in the shale. I figured that it would be easier to look down and break up the rock layers than to look up at them above my head and hope they didn't land on me when ever I pulled out another chunk. Here's a picture of the site with the waterfall to the left. You can follow the bentonite seam from the right to the left with your eyes to see where the lense crops up in the creekbed (it's the sort of dark crevice just above the waterfall ledge). Very quickly I was rewarded for my exploration as I pulled out the largest Ptychodus tooth I had ever seen (at the time - a little hint as to what I'll be talking about in my Post Oak Creek trip report ). I'm generally pretty clueless when it comes to identifying most Ptychodus down to the species level, so if anyone could help me out I'd really appreciate it! Here's an in-situ picture: And another picture taken after I had broken it out of its rocky prison: With my enthusiasm rekindled I kept digging through the shale and was rewarded by another Ptychodus tooth, even larger than the last, that actually popped out directly into my hand before I had even seen it. I didn't get a picture at the time but it is in this photo I took after I got home. It has some really interesting surface wear that I reasoned was probably accrued during the shark's lifetime. Directly behind where I found the two Ptychodus teeth was the find of the day and maybe even the find of the year, although I didn't know it at the time. This is a picture of it still in-situ if anyone wants to take a guess as to what it was: It was a mosasaur vertebra! And the largest piece of bone I had found at the site so far, many times larger than the coniasaur vert from the previous trip. This is what it looked like out of the shale back home when viewed from the bottom: One of the transverse processes can be seen on the right as well as the two attachment points for the haemal arch, which is sort of like the spine that's on top of each vertabra but located on the bottom in the vertebrae that make up the tail. Now at the time I didn't think this individual vertebra was anything special. I had found mosasaur vertebrae before at the North Sulphur River, many of which were much larger than this one and in much better condition. I was pleasantly surprised that I had found one at this site but didn't think much of it and so it was pocketed to be looked at later. It wasn't until I got home and had a conversation with @Jared C who is much more informed when it comes to the Eagle Ford than myself that I realized this one bone might be much more important. That's because I had initially assumed that I was looking at the contact between the Eagle Ford and the Austin Chalk, making this particular shark tooth lense I had discovered the famous Atco contact. Mosasaurs are rare in Turonian age rocks but certainly not unheard of (Jared himself even found one two years ago!). But after reading several different university publications on this particular site I realized that this spot wasn't the contact between the Eagle Ford and Austin Chalk, but actually entirely Eagle Ford rock - specifically a subunit that placed it in the lower half of the formation. This meant that this one bone had come from the Cenomanian, not the Turonian, making it slightly older than the oldest known basal mosasaurines, both of which are also from Texas - Russellosaurus and Dallasaurus. Still not believing that I could have possibly been this lucky, I emailed Dr. Polcyn at SMU to get his opinion. He was the one to actually first describe both Russellosaurus and Dallasaurus and so I figured if anyone could tell me whether or not what I had found was significant it would be him. Jared has a pretty good relationship with Dr. Polcyn from his own mosasaur discovery so he was able to tell him to be on the lookout for my email. After a short exchange in which Dr. Polcyn expressed his interest in seeing the vertebra in person we arranged for me to meet him north of Dallas at a plesiosaur dig both he and Jared would be involved in. Meeting Dr. Polcyn was incredible. I've known of him for a long time since mosasaurs have always been my favorite prehistoric animal and he's definitely one of the leading researchers as far as they're concerned. I even remember seeing him interviewed for the news in 2005 when the Dallasaurus discovery was first made public and begging my grandparents to take me to the Dallas Museum to see their mosasaur skeletons. Dr. Polcyn was very interested in the vertebra when he saw it in person and asked me if I would be willing to donate it to SMU alongside the two Ptychodus teeth I had found next to it as they might be useful for dating purposes. I of course said yes as donating a fossil I had found to science has probably been my dream since I could first talk. We made plans for me to go back to the site and collect a large sample of the bentonite from the seam located beneath where I found the vertebra so it can be dated by SMU and the age of the bone confirmed. The bentonite being present at the site is extremely fortunate as it is one of the most conducive materials to dating sedimentary strata. Rounding out my finds for the day that I found the mosasaur vertebra was a pycnodont fish mouthplate: And also another nice coniasaur vertebra (I actually found several more but this was the best and the only one I got a good picture of): Not all of the animals I saw at the site were dead and many millions of years old though. In the same vicinity as the mosasaur vertebra was a toad that I had clearly disturbed in my search for associated bones. I apologized for my intrusion and replaced the front door to his little hole that I had inadvertently dug up. A much less welcome sight than the toad was an absolutely massive wolf spider that I spotted on a clump of shale I had been just about to pick up. On my way back to my car I finally spotted the pack of hogs that been so kind as to create a trail through the woods for me to follow on my first trip. I gave them a wide berth and continued on my way. This site has become one of my favorites, not only because of what I've found there but because I discovered it on my own after a lot of geologic map studying and old paper reading. I can finally say I understand Jared's Eagle Ford obsession! Until next time, - Graham
  17. HunterLacrosse

    identify the Mosasaurid tooth

    Hi, guys! I got a Mosasaur tooth from (Ouled Abdoun Basin?), Oued Zem Morocco, but I'm not sure what species it belongs to. Can anyone help me to identify it? CH: 4.2 cm CBW:1.8 cm CBL: 2.4 cm serrations: Yes Thanks guys
  18. jenwat

    Ladonia Fossil Park Finds

    Hello, everyone! It’s been a while since I’ve been on this forum, but I was finally able to make my way back up to Ladonia this week to hunt a little. I didn’t walk too far from the bridge and mostly just surface-searched through gravel bars; unfortunately, I didn’t fulfill my dream of finding a mosasaur tooth, but I did find some other cool things! (Please note that all measurements are in centimeters) 1. My favorite find today was this Xiphactinus tooth. I found it just sitting on top of a submerged (but very shallow) gravel bar. 2. I accidentally found this point after just picking up what looked like a black rock in the water. I’d love to learn more about it; I was thinking perhaps a Gary Point? 3. Next up is a tooth(?) that is so worn down I’m not even sure if it’s identifiable, but I thought I would put it out there in case anyone had any ideas. I was thinking perhaps Ptychodus, but someone suggested to me that it could possibly be Globidens. Any thoughts? 4. Fish bone? 5. Mosasaur vert? This is an unfamiliar shape to me so I’d love some insight. 6. Another mosasaur vert. 7. Bone fragment #1. Not sure if it’s possible to identify this, but it had a distinct shape, so I decided to just post and see. 8. Bone fragment #2. Also not sure if this will be identifiable. That’s all that I have for right now!
  19. "Gracie" the mosasaur was finally freed from her 90 million year old South Bosque Member of the Eagle Ford Shale "prison" today. Partly exposed before her discovery on Fossil Day 2023, she is 4 meters long, complete, and fully articulated - although part of her tail and trunk washed downstream on October 5, 2023. A good part of that float has been recovered. A trip report is following when I get the energy to update my ongoing report after the last 5 straight days of excavation. Thanks go out to @Jared C, @JohnJ, @GPayton, my wife Susie, daughter Angela, Stephen Cruse, and many others who helped - especially Dr. Mike Polcyn of SMU.
  20. Mike2

    Croc or mosasaur tooth

    Hello everyone. I found this tooth months ago and perhaps didn’t do enough reading at the time. I labeled it a mosasaur tooth and moved on. Now having gone through more online articles I am thinking that it is indeed a crocodile tooth. Any help would be appreciated! Found at Ramanessin Brook in New Jersey, which I believe is part of the Navesink Formation. Although several other Cretaceous formations exist there too, like the Wenonah Formation. The tooth measures approximately 5/8 of an inch long by 3/8 of an inch wide at the base. There is worn down carinae with no serrations. I’m not sure what to call the pocket at the base of the tooth but you see this in both crocodile teeth and mosasaur teeth. Seems small for a mosasaur tooth but just wanted some extra input. Thank you!
  21. Sonickmonx

    Mosasaur Tooth

    From the album: Sonickmonx's South Carolina Finds

    This tooth measures 1.65" and was found in the PeeDee formation. The genus/species of mosasaurs found in SC is contentious, so I will refrain from identifying it with any specificity.
  22. Hi everyone, I have recently acquired this mosasaur jaw from an online auction. It is currently being shipped to me so I'll be able to take additional photos once it has arrived. The seller stated it was found in a phosphate mine in the Khouribga region in Morocco. It's 41 cm wide and 20 cm tall. I'd like to know if it's possible to identify the genus or species this jaw belongs to. I'm also wondering if it's possible to tell if it's an upper or lower jaw. Before I'd discovered this forum I made a post about it on Reddit. The people there told me the matrix is fake and there have been some small repairs made. What are the signs of the matrix being fake? And what are the signs it's been repaired/restored? Below are two more photos which will hopefully provide more information. Thanks a bunch!
  23. ILikeDinosaurs

    Need help identifying these bones

    I have a mosasaur tooth in matrix but it is surrounded by a cluster of what are presumably fish bones. There are a few vertebrae visible but I can’t seem to identify more than that. It’s from Khourigba, Morocco and is about 8 cm x 7 cm. Just wondering what these bones might be from (similar photos online make it seem like it could be pieces of an enchodus skeleton?)
  24. Hi everyone! I'm hoping for a second opinion on this Mosasaur jaw. The parts look real to me, my question is did they all come from the same jaw. The jaw is 65 cm, so a pretty decent size. What do you all think? is it a composite? Any insight is appreciated as always!
  25. Toast123

    Thililua longicollis tooth?

    Tooth measures .83 inches and wasfound in Asfla, Goulmima, Morocco at the Akrobou Formation. From what I’ve read this is either Thililua or Manemergus Anguirostris and the seller wasn’t 100% sure.
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