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Found 3 results

  1. So I was browsing our favourite auction site, and I came across these interesting specimens. The seller claims these all belong to the same individual, while at the same time, strangely, they are selling each bone separately. And while these bones are definitely real Kem Kem bones, I'm posting it in this forum because there is reason to believe the information that these belong to the same animal is suspect. All of these are sold as being from one individual Spinosaurus. This first one is definitely a Spinosaurid cervical vertebra. a fairly nice one. But the rugose triangular area on underside shows that this is in fact from a Sigilmassasaurus, one of the Spinosaurids from Morocco. From the length of the vertebra this can be placed somewhere in the back of the neck of the animal. Next specimen is also a Spinosaurid cervical vertebra. Though due to damage this one is harder to identify as Sigilmassasaurus. Again due to the shortness this seems to be a cervical vertebra from somewhere back in the neck. The dorsal spine though worn, seems to be not that big. So this might point towards it being Sigilmassasaurus as well. So seems fairly plausible if the seller says these belong to the same individual right? Now here comes the problem. This third specimen is listed as belonging to the same individual. But this is clearly a cervical vertebra from a type of crocodile. Since it's nice and complete we can see which way is the front and which is back. The front of the centrum looks to be concave, while the back of the centrum here is convex. This is typical of some crocodiles. But on Spinosaurids it's the other way around, with the front of the centrum being convex and the back is concave. So with that this specimen casts doubt on the whole claim that some of these specimens belong to the same animal. Which is too bad 'cause the fossils seem pretty nice. There were some other specimens as well. But these three were clearly identifiable.
  2. New Dino and Mosa Acquisitions

    I bought some new cool stuff at a local show. I only bought Moroccan material. A few Mosasaur pieces and stuff from Kem Kem. I've only started cleaning and will research them a bit more later. So I thought I'd share some pics first. I also got some new display items that will be nice to showcase some of my other stuff in. From left to right. Top: First there's a chuck with two roots and one tooth. There's also some bone fragments that look like they could be jaw pieces. Will be a fun prepping project. Then there's a Prognathodon tooth that isn't the prettiest but it's really big and it was cheap so I had to get it. And at the end there's a Plesiosaur vertebra with a partial neural arch that will be fun to clean. Bottom: On the left there's a neural arch from a Spinosaurid. I compared it to the recent reconstruction of Spinosaurus and it looks like it's a pretty close match with some of the first dorsal vertebrae. Middle top there's a small caudal vertebra. Middle bottom there's a fish jaw. And on the right from top to bottom. A possible distal femur. A metacarpal/tarsal? And a possible proximal tibia. All three are hollow and probably Theropod or bird. So I have some research and cleaning to do! Really big ugly Mosasaur tooth. Mosasaur tooth and jaw fragments. Fish jaw. Distal femur. It's very asymmetrical as well. Metacarpal or tarsal. The head is almost symmetrical but the shaft seems to be angled more. Spinosaur neural arch from a different angle. Roughly a dorsoposterior view. Since it's not very complete on one side this will make for a great piece to scan and digitally mirror so that I can recreate a bit of the missing pieces. So I'll be having fun with these pieces for a while.
  3. Sigilmassasaurus vertebra

    Vertebral process of Sigilmassasaurus. This is likely a mid cervical vertebra. It also bears close resemblance to the Spinosaurus maroccanus holotype which I consider to be synonymous with Sigilmassasaurus brevicollis.
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