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Found 50 results

  1. Hi all, I have another fossil here for your inspection please. It seems to be a Spinosaurid partial neural spine but I cannot be sure. @Troodon @LordTrilobite
  2. Hi all, I acquired a partial Spinosauridae caudal spine recently from the Kem Kem Beds. However, I was told that this is a dinosauria indet. rib. The digger who provided me the fossil is experienced and trustworthy. Still, I would like to hear your thoughts on this fossil. Thank you. EDIT: Two others suggested that this is part of a scapula
  3. A very interesting paper authored some notable paleontologists. I was able to see a copy of the pre-proof paper. It describes 2 new cervical vertebrae and also reviews published material that provided an interesting insite into the Abelisauroids of the Kem Kem. Abelisauroids include both Abelisauridae and Noasauridae families. To summarize some of the conclusions: 1) One of the cervicals FSAC-KK-5016 established the presence of a small-bodied noasaurid taxon with similarities to Masiakasaurus of Madagascar. Further discoveries of this noasaurid are necessary to determine if it resembles Masiakasaurus in other aspects of its anatomy, such as a piscivory adapted dentition. One small tooth (GZG.V.19999), described by Richter et al. (2013) as abelisaurid-like was noted as similar to the teeth of Masiakasaurus. If Deltadromeus proves to be a noasaurid, which the paper suggest, then there are at least two noasaurid taxa present in the Kem Kem assemblage. 2) The second cervical an axis vertebra FSAC-KK-5015 is referred to as a small basal Abelisauridae that is neither a Carnotaurinae nor Majungasaurinae. 3) In reference to Richters et al paper (2013) the authors concluded that multivariate analysis may not be suitable for distinguishing dromaeosaurids or abelisaurids, but added that the small sample size (3 teeth for the morphotype: NMB-1671-R; GZG.V.19997; GZG.V.19998) decreased the accuracy of the results. It is possible that the teeth referred to Dromaeosauridae by Richter et al. (2013) are also noasaurid in origin. 4) A review of previously published material was also conducted and the following statement was made "The abelisaurid Rugops from the Eckhar Formation of Niger is here confirmed to also be present in the Kem Kem beds. " very cool... Paywalled https://www.sciencedirect.com/science/article/pii/S0195667119303738 Abelisauroid cervical vertebrae from the Cretaceous Kem Kem beds of Southern Morocco and a review of Kem Kem abelisauroids Robert S. H. Smyth, Nizar Ibrahima, Alexander Kao, David M. Martill FSAC-KK-5016 represents the smallest described dinosaur in the K K (green) FSAC-KK-5015 represents a small bodied Abelisauridae (blue)
  4. New Dinosaur Education Displays

    We did a lot more work on our shark stuff this summer than dinosaurs but we did change how display the non touch fossils. We added a few new items too but stayed light on additions. First up is our updated Cretaceous North Africa display. We added a really nice theropod tooth that fits @Troodon ‘s Morph Type 4 Dromaeosaurid-like profile hence the label for the program. We explain the ID difficulties of fossils so for a tooth like this they know we are not sure of what critter had this tooth. I am pretty happy with how this one looks. We give a nice picture of Cretaceous North Africa from two different times. This is an important part of our program and we have some nice fossils I think. We also have two touch fossils with this section. A limb bone that we go with Spino as the critter and one is a theropod very that we use to talk about Deltadromeus.
  5. Hello, could you please tell me what kind of mosasaur teeth are these? Thank you very much.
  6. Mosasaur jaw in matrix

    Hello, so I was thinking about buying this piece but i would love it if I could remove the matrix from it to make it look better. Is this possible? Thanks-
  7. Hello, so i was thinking about buying this tooth, what do you think of it? is it real? Thanks.
  8. Bone ID wanted. Thank you!

    Hello! I have this bone which i recieved in a lot, all bones and remains were advertised as from the Kem Kem Beds. It seems to be hollow, I think it may be crocodile? Thanks in advance for your input, could it be dinosaur? Reptile? Thanks!
  9. Robust foot claw from the Kem Kem

    Hi, Another question about a foot claw from the Kem Kem Beds. This is a weird looking claw that may or may not be theropod. It is quite robust and is 7cm in length, though i am having trouble telling which angles of the claw the photos come from. It does look like the underside has a couple of circular depression spots which could indicate theropod, though i am not confident and wanted to ask for opinions whether theropod is the likely candidate. Thanks.
  10. an interesting Kem Kem tooth

    I have been working on finding a Dromaeosaur indet tooth from Morocco for a few months. Most of the "raptor" teeth from the Kem Kem beds I have seen labeled as such ended up being more similar to the Abelisaur indet teeth and those I have found were over priced or gone before I could get then. This one is different and appears to fit the general profile of what I am looking for pretty well. I do not think it is a Carch and it does not look like an Abelisaur either. At the very minimum, and hopefully @Troodon agrees with me, it seems a good candidate for a multi-variant analysis. Any thoughts ?
  11. Nothing spectacular just a paper describing an ilium from an Abelsaurid from the Kem Kem beds of Morocco. I wanted to document this since we occasionally see this type of material for sale and all are described as Spinosaurus. Good to see this type of material published...now how about teeth https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0214055 An abelisaurid (Dinosauria: Theropoda) ilium from the Upper Cretaceous (Cenomanian) of the Kem Kem beds, Morocco Slimane Zitouni, Christian Laurent , Gareth dyke, Nour-Eddine Jalil Published: April 2, 2019
  12. Carcharodontosaurid tooth

    Acquired from a British fossil dealer in November 2018. Labeled Carcharodontosauridae indent. due to the presence of at least two carcharodontosaurids (Carcharodontosaurus saharicus and Sauroniops pachytholus) in the Kem Kem Beds.
  13. I've been looking for Moroccan pterosaur teeth, and have found this one from the Kem Kem beds for sale. I know there's fish teeth being sold as pterosaur teeth so I wanted to ask if anyone out there could confirm whether this is from a pterosaur? Thanks!
  14. Kem Kem Jawbone

    Recently I posted this fossil in the fossil preparations forum in order to get some assistance in cleaning the fossil. The bone comes from the Kem Kem Beds, so the sandy matrix was fairly easy to pick off with a pin vice and a DRY toothbrush I believe this is Carcharodontosaur because of the amount of space between tooth sockets and the presence of labial foramina (both of these features outlined in photographs) but I'm not 100% sure. The size of the fossil is 6x3x1 inches. I've been driving myself nuts trying to figure out what this thing is, so I've decided to post it here because I'm all out of ideas
  15. Recently I acquired this 7x3 inch bone from the Kem Kem Beds (seller specifically labeled it as coming from Tegana Formation, but I know this formation is no longer valid). When I received the bone I saw that it was covered in spots of sand, so I found my box of exacto knives and went to work. I spent all last night picking off any sand I could find and I think I got most of it. However, the bone is still quite dirty looking and my exacto knives cannot pick off any of the remaining sand-colored material. My first thought was to soak the whole thing in water but I once heard that soaking Moroccan fossils in water can ruin them. What should be my next move? Thanks for any suggestions!
  16. FOSSIL ID Kem Kem Beds

    I was given this by my father as a gift. All he knows, is is it is from the Kem Kem Beds. It looks like it may be a jaw bone on some kind as it has indentations for what looks like teeth? But I can't decide on if it's from a fish, turtle, crocodile, dinosaur or reptile or if it's just a fragmentary piece of bone. I would appreciate it if anyone can shed any light on this! Huge thanks in advance .
  17. This week's red flags This bone is being sold as a neural spine of a reptile or dinosaur. It's actually a pretty complete Chevron and could be dinosaurian. Needs lots of prepping to clean it up. Lots of Dromaeosaur raptor teeth being sold. All are either Abelisaurid indet or juvie Carcharodontosaurid Lots of caudal Vertebrae being sold as Spinosaurus or Carcharodontosaurus, most are Crocodyliforms, unknown or other Dino so post here before you buy Lots of rare phalanx toe bones from Dinosaurs or reptiles being sold this week. Most are Reptlian, Croc or turtle.
  18. A recent interpretation of the fossil remains Spinosaurus aegyptiacus proposed that it was specially adapted for a semi-aquatic mode of life—a first for any predatory dinosaur. To test some aspects of this suggestion this study developed a three-dimensional, digital model of the animal that incorporates regional density variations, lungs and air sacs, and the flotation potential of the model was investigated using specially written software. It was found that Spinosaurus would have been able to float with its head clear of the water surface, although it was laterally unstable and would tend to roll onto its side. The conclusion is that Spinosaurus was not highly specialized for a semi-aquatic mode of life. Furthermore, the floating characteristics of the Spinosaurus model were similar to those of models of other predatory dinosaurs, indicating that there was nothing special about the buoyant characteristics of this animal, and that other theropods could have successfully taken to water to the same degree as well. So Spinosaurus may have been specialized for a shoreline or shallow water mode of life, but would still have been a competent terrestrial animal. Interesting paper, very reputable and a big deal considering the source, The Royal Tyrrell Museum. Newspaper Article: Royal Tyrrell Research Blows Swimming Dinosaur out of the water https://calgaryherald.com/news/local-news/royal-tyrrell-research-blows-swimming-dinosaur-theory-out-of-the-water https://peerj.com/articles/5409/ Henderson DM. (2018) A buoyancy, balance and stability challenge to the hypothesis of a semi-aquatic Spinosaurus Stromer, 1915 (Dinosauria: Theropoda)PeerJ 6:e5409 https://doi.org/10.7717/peerj.5409
  19. This weeks round of red flags Recent listings offers a number of very long Spinosaur teeth at very low prices. Most of these have fake roots and more. Avoid and post here before you buy. A member just got taken last week so please be careful. Large rooted teeth are expensive. A finger bone is offered described from a Spinosaurus. I think its a carpal but we have no scientific evidence that this morphology is from a Spinosaur. Its a very nice indeterminate Theropod carpal. This bone is listed coming from a Carcharodontosaurus. We have no idea who is the owner of this bone, no associated foot material has been published for any large Kem Kem Theropod. Best identified as indeterminate Theropod. Lots of fake Dinosaur eggs continue to be listed. Please post interest before you buy. A pair of Aublysodon Premaxillary teeth offered for sale. Reminder this is no longer considered a valid species, they are best identified as Tyrannosaurid indet. Most likely Nanotyrannus.
  20. A very large Moroccan centrum is being offered for sale. Seller identifies it as a Carcharodontosaurus. In my opinion this looks more like a Sauropod with that very large pleurocoel in the lateral view. Not sure what is going on with that purplish looking material if its been added. Spinosaurus tail, caudal vertebra being offered for sale no mention of any repairs. The centrum does look like its from a Spinosaurid but the processes look composited. You can see the typical Moroccan matrix mix between those processss and centrum. Seller is advertising this as a Carcharodontosaurus toe bone. Identifying isolated toe bones to a species in the Kem Kem is very difficult not much is published that describes them. Its a nice bone buy it as an indeterminate Theropod. Lots of eggs are showing up for sale. Most are fake....this is just a reminder of that, please post interests here before you buy. I still see some dealers offering Rugops teeth for sale from the Kem Kem. Just a reminder that this species is only described from the Echkar Fm of Niger. Most of the teeth offered are Abelisaurid but are indeterminate from the Kem Kem until something is published. For fun saw this 4 figure listing, seller describes it as a petrified baby dinosaur skull with teeth, skin and brain matter coming out of the side of its mouth looks like an alien head to me.
  21. A cool tail vertebra is being sold as the Diplodocoid Rebbachisaurus is the ID correct? Kem Kem Beds. Any resto or repair evident. Thank you
  22. A 3" Carcharodontosaurus Foot Claw is being offered for sale from the Kem Kem of Morocco by a pretty respected dealer. It looks pretty nice but is it identified correctly and repairs or restoration visible? Thank you.
  23. Although the paper is paywalled the abstract provides some interesting insights The hypothesized aquatic habits of Spinosaurus have been called into question, and the distribution of aquatic habits within Spinosauridae remain unclear. New spinosaurid specimens from the Kem Kem beds of Morocco reveal aquatic adaptations in the cranium. 1) Elevated orbits and bending of the frontals placed the eyes atop the skull, as in semiaquatic animals such as crocodiles and hippos. 2) Two morphologies are present, a smaller morph characterized by narrow, triangular frontals, and a larger morph characterized by broad, subrectangular frontals overlapping the prefrontals. The two morphs suggest two distinct spinosaurine taxa, and are tentatively referred to the spinosaurines Spinosaurus cf. aegyptiacus and Sigilmassasaurus brevicollis, respectively Another interesting point in the abstract: The appearance of giant semiaquatic dinosaurs may have followed the disappearance of giant pholidosaurid crocodylomorphs, suggesting that the extinction of large crocodylomorphs was associated with the rise of dinosaurs as apex predators in the freshwater ecosystem in North Africa. https://www.sciencedirect.com/science/article/pii/S0195667117303427 Aquatic adaptation in the skull of carnivorous dinosaurs (Theropoda: Spinosauridae) and the evolution of aquatic habits in spinosaurus Thomas M.S.Arden, Catherine G.Klein, SamirZouhri, Nicholas R.Longrich From outline images frontals are shown. @LordTrilobite
  24. Unknown Kem Kem Beds, Teeth

    I have a few teeth here that i could you some help identifying! I'm thinking between a Crocodile or Raptor for the first tooth posted (includes photo of each side). The second photo contains multiple teeth that look to be from the same organism, however i have no clue as to what it could be. All of these teeth are from the Kem Kem Beds of Taouz, Morocco. The single (Crocodile/Raptor?) tooth is .53" (14 mm) long by .31" (8 mm) wide by .2" (5 mm) thick.
  25. These bones from the Kem Kem Beds of Morocco are being offered for sale as Spinosaurus Phalanx Toe Bones. They appear to be carpals, hand bones, and most likely from one of the Spinosaurid's in that fauna. Please note that I've yet to find any technical paper that describes any Spinosaurid hand bones The seller indicates only some glued and fill fractures however the excessive matrix on both these carpals might indicate otherwise. The distal end of the carpal on the right appears to have lots of "fill"
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