lone5wolf117 Posted October 11, 2018 Share Posted October 11, 2018 Hello all would this be a spino jaw section or a croc jaw section ? And the tooth has been put on the jaw. 1 Link to comment Share on other sites More sharing options...
Flx Posted October 11, 2018 Share Posted October 11, 2018 Not sure but I would lean towards croc. The spacing of the teeth is large and also the jaw is very wide (the one I have in my collection from which I think its spino is narrower). Lets see what the Kem Kem experts say though. Edit: The jaw fragment has this lip which can be found on lower spino jaws. Several ppl in this forum mentioned that these lips can also be found on croc fossils. If someone has a publication or picture to support that claim I would be very interested to see it. 1 Link to comment Share on other sites More sharing options...
Runner64 Posted October 11, 2018 Share Posted October 11, 2018 Looks like a croc jaw with a spino tooth glued in the socket Link to comment Share on other sites More sharing options...
lone5wolf117 Posted October 12, 2018 Author Share Posted October 12, 2018 On the top is a spino jaw section and bottom its a croc jaw section. 1 Link to comment Share on other sites More sharing options...
LordTrilobite Posted October 12, 2018 Share Posted October 12, 2018 As I said before, I would lean towards Spinosaur, but wouldn't rule out croc. It's definitely lower jaw though. It seems pretty big but it doesn't seem to match Elosuchus. But it's important to note that there are at least two types of Spinosaurids in the Kem Kem beds. We only have reference for Spinosaurus aegyptiacus. While we don't have any confirmed jaw material for Sigilmassasaurus brevicollis. Who knows, maybe it's similar but has a smaller lip. Elosuchus lower jaw. Spinosaurus aegyptiacus lower jaw. 3 Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
Fossilgrove Posted October 12, 2018 Share Posted October 12, 2018 This is a SpinosaurId jaw section ,there are no crocs in the Kem Kem or anywhere for that matter with that raised lip running along the tooth socket line,Elosuchus does not have any part of its jaw with a raised lip .Referring to the post by member FIX ,an adult spinosaurus jaw is much larger and more massive in width and depth than any crocodile, 3 Link to comment Share on other sites More sharing options...
Fossilgrove Posted October 12, 2018 Share Posted October 12, 2018 1 minute ago, Fossilgrove said: This is a SpinosaurId jaw section ,there are no crocs in the Kem Kem or anywhere for that matter with that raised lip running along the tooth socket line,Elosuchus does not have any part of its jaw with a raised lip .Referring to the post by member FIX ,an adult spinosaurus jaw is much larger and more massive in width and depth than any crocodile, But sadly I have seen many croc jaws with spinosaurus teeth placed by unscrupulous people and passed off as Spinosaurus ,buyers beware and if in doubt post a photo here , Link to comment Share on other sites More sharing options...
Fossilgrove Posted October 12, 2018 Share Posted October 12, 2018 3 hours ago, lone5wolf117 said: On the top is a spino jaw section and bottom its a croc jaw section. Link to comment Share on other sites More sharing options...
Fossilgrove Posted October 12, 2018 Share Posted October 12, 2018 Thanks for posting ,very distinctive difference between croc and spino as can be seen from these photos, Link to comment Share on other sites More sharing options...
LordTrilobite Posted October 12, 2018 Share Posted October 12, 2018 7 hours ago, Fossilgrove said: This is a SpinosaurId jaw section ,there are no crocs in the Kem Kem or anywhere for that matter with that raised lip running along the tooth socket line,Elosuchus does not have any part of its jaw with a raised lip .Referring to the post by member FIX ,an adult spinosaurus jaw is much larger and more massive in width and depth than any crocodile, Though much too small to be a candidate for this specimen. Laganosuchus does have such a lip in certain areas of the lower jaw, although it's not as pronounced. It's also present in the Kem Kem beds. It is also present in some other crocs. 3 Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
Seguidora-de-Isis Posted October 16, 2018 Share Posted October 16, 2018 I agree! There are dozens of species of crocodiles present in the Kem Kem beds. Even many of these species were thoroughly studied by Paul Sereno. Sorry, but particularly I don't believe this is a jaw of a Spinosaurid... This Spinosaurus tooth looks good, nice fat tooth, but It's highly improbable that the jaw fragment came with the tooth. The question is does it belong to a Spinosaur or other animal but it's too small of a section to really tell. Most Moroccans fake these jaws with those of Crocodile... Similarly to the jaw that was posted here, the jaws of crocodiles are more rough, while the jaw of a Spinosaurid is smoother. In addition, the sockets in the jaws of a Spinosaurid follow toward the edge, while the Crocodile jaws have more spacing and bone around the socket. For comparison: 1 Is It real, or it's not real, that's the question! Link to comment Share on other sites More sharing options...
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