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Found 12 results

  1. Hello all I have a question about these three big crocodylomorph teeth from the Kem Kem beds in Morocco. The Kem Kem beds are Cenomanian (early late Cretaceous) in age. These are my three teeth: The left one is an 8,5 cm long tooth crown (maybe partial rooted but not too much) which is very slender. It has carinae ( Correct term for Crocodilians?) running all the way along the crown. The middle one is a rooted, slender tooth of 9 cm with a missing tip. The first time I saw this tooth for a moment I thought it would be a Pliosaur tooth, until I saw the location. I am not sure if the missing tip is chewing damage or just because the fossil broke. The complete tooth would have been 9,3-9,5 cm I think. It does have carinae, but they don’t seem to run along the entire 4 cm long crown. The root itself is around 5 cm long and hollow. The last one is a very robust 6 cm long tooth crown with clear carinae running along the entire tooth. This tooth is way smaller than the first one, but a lot more robust. My problem with these teeth is ID’ing them. Crocodile teeth usually aren’t easy but I really wanted to try to get some ID on these. Some background info: So far seven Crocodylomorphs are described in the Kem Kem beds. 1: First of, Araripesuchus rattoides I couldn’t really find any good pictures of teeth from this species, but I found this picture of a jaw of Araripesuchus wegneri from Niger My teeth certainly do not belong to this genus because of size and shape. 2: Next, Laganosuchus maghrebensis, a species who’s teeth also don’t look similar to mine. 3: Hamadasuchus rebouli has pretty distinctive teeth. They are usually serrated and a lot smaller. 4: Next up, Aegisuchus witmeri, a croc with a holotype without any teeth. However, the size estimates given to this crocodile are too small to contain such big teeth, so I also rule this one out. 5: We also have Kemkemia auditorei, but this species is only known from caudal vertebra. According to Wikipedia (I know, great source), this would have been a crocodylomorph with a size of 4 to 5 meters. I can’t really comment on teeth of this species, but when I compared it with the largest tooth recorded (9cm) of the biggest crocodile today (Saltwater crocodile), this tooth was even larger than the biggest of the Saltwater crocodile, while that specific individual must have been 1 to 2 meters bigger than the 4 to 5 meter estimate on Kemkemia, so I think we can rule that species also out. 6: The last one I feel pretty confident in ruling out is Lavocatchampsa sigogneaurusselae. Beside being way to small, it’s teeth looks nothing like mine. 7: Now onto the most famous Kem Kem crocodile: Elosuchus cherifiensis. The original description of the genus Elosuchus included these teeth. According to the description and this picture, I am pretty sure the tooth on the right does belong to this species. The other two teeth do not fit this description however. For the tooth on the left one I can believe it’s a different position in the jaw, but I am far from sure. The middle tooth is something else I think. It could of course be a case of heterodonty, but it differs quite a lot from the two others. So what do you guys think? Is this a case of heterodonty, or is there some huge, undescribed crocodylomorph present in the Kem Kem beds? Really looking forward to what you think. Pictures from: Larsson, H. C. E., en C. A. Sidor. “Unusual Crocodyliform Teeth from the Late Cretaceous (Cenomanian) of Southeastern Morocco”. Journal of Vertebrate Paleontology 19, nr. 2 (1999): 398–401. Martin, Jeremy E., en France De Lapparent De Broin. “A Miniature Notosuchian with Multicuspid Teeth from the Cretaceous of Morocco”. Journal of Vertebrate Paleontology 36, nr. 6 (november 2016). Sereno, Paul, en Hans Larsson. “Cretaceous Crocodyliforms from the Sahara”. ZooKeys 28 (19 november 2009): 1–143. Lapparent de Broin, France de. “Elosuchus, a New Genus of Crocodile from the Cretaceous of the North of Africa”. Comptes Rendus Palevol 1, nr. 5 (1 december 2002): 275.
  2. Kem Kem croc jaw fragments ID

    I've got five jaw fragments from the Kem Kem of which I think they are from crocodilians. Any ideas as to what genus or species these belong would be appriciated. 1. No idea what this jaw is from, but my best guess is some crocodilian. 2. I also don't know what this is but also probably some crocodilian. 3. This one has a hard layer of sediment covering it and it's missing the underside of the jaw. It looks a bit like the dented part of a Spinosaurus dentary but it's more likely also crocodilian. 4. Definitely crocodilian, has a typical croc texture (lots of dents). To me it looks like a right jugal with a part of the maxilla. 5. Also some crocodilian, resembles an Elosuchus jaw but it's pretty small so maybe a juvenile or some other croc. Have fun ID'ing!
  3. I've always been fascinated by the Cretaceous sea and its myriad of terrifying carnivores, many that would've made Jaws look meek. After watching BBC's Sea Monsters, I made it my goal to compile a box of sea monster fossils. I started this journey 10 years ago, and finally completed the box recently. Allow me to present my Predators of the Cretaceous Sea collection, and take you on a journey to the most dangerous sea of all times. The box measures 20.25 inches long. Inside are 24 unique predator fossils. I will introduce them from left to right, top to bottom: Rhombodus binkhorsti Age: 70.6 - 66 mya | late Cretaceous Formation: Severn Formation Locality: Bowie, Maryland, USA Size: 1 meters Diet: Molluscs and crustaceans art by Nobu Tamura --------------- Polyptychodon interruptus Age: 105.3 - 94.3 mya | Cretaceous Formation: Stoilensky Quarry stratigraphic unit Locality: Stary-Oskol, Belgorod Oblast, Russia Size: Maybe 7 meters (This is a tooth taxon so size is not confirmed) Diet: Anything it could catch Note: If you consider Polytychodon a nomen dubium, then this is a Pliosauridae indet. art by Mark Witton ----------------- Prognathodon giganteus Age: 70.6 - 66 mya | late Cretaceous Formation: Ouled Abdoun Basin Locality: Khouribga Phosphate Deposits, Morocco Size: 10-14 meters Diet: Everything art by SYSTEM(ZBrushCentral) --------------- Coloborhynchinae indet. Age: 99.7 - 94.3 mya | late Cretaceous Formation: Kem Kem Beds Locality: Southeast Morocco Size: 7 meters (high estimate) Diet: Fish and cephalopods
  4. Croc kem kem tooth

    Hi! I have a rather big croc tooth from kem kem and I was wondering if it could be a Elosuchus tooth because of its size? or should I just label it as Croc indet?
  5. Elosuchus? From Kem Kem

    Hi all, Bought this little tooth for a low price. It was sold as an Elosuchus crocodile tooth. Is that correct? It's from the Kem Kem beds, Morocco. There are two small cutting edges, each on either side of the tooth (photos 1 and 3) (photo 2 is not a cutting edge I think, as it looks more like a split/groove in the tooth). I can always make more pictures if needed. Thanks in advance for replies! Max
  6. Crocodile tooth

    From the album Dinosaurs and Reptiles

  7. Crocodile tooth

    From the album Dinosaurs and Reptiles

  8. Croc tooth (?) ID

    Hi guys going through my deep box of Kem Kem bits is this. I guess it’s croc, maybe Elosuchus? @Jesuslover340 @LordTrilobite @Troodon
  9. Crocodile Tooth (cf. Elosuchus sp.)

    From the album Giant Crocodiles

    100.5 - 93.9 mya, El Begaa, Taouz, Kem Kem beds, 3.03 inches long, Note: The identity of this tooth isn't firmly established. Elosuchus teeth from Kem Kem tend to have a different shape. Do comment on this if you have any additional info on this tooth.
  10. From the album Giant Crocodiles

    (From left to right) Elosuchus from El Begaa, Taouz, Kem Kem beds (3.03 inches long) Kaprosuchus saharicus (BoarCroc) from Echkar Formation, Niger (2.10 inches long) Deinosuchus rugosus from Monmouth County, New Jersey (1.50 inches long, 0.96 inches width)
  11. Elosuchus tooth

    From the album Reptiles & Marine Reptiles collection

    Fossil Crocodile Tooth with root Elosuchus sp. Locality: Taouz, Kem Kem, Morocco Geological Age: Upper Cretaceous Size: 3.5"
  12. http://www.ebay.com....9#ht_500wt_1156 As some of you might know, I have been on the hunt for various Cretaceous marine predators, one of which is a marine crocodile. i came across this Elosuchus tooth in Ebay and snatched it up quickly, as I 've never seen an Elosuchus tooth being up for sale before. I would appreciate it if any experts could look at it and judge if it's a genuine Elosuchus tooth. Thanks!
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