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Showing results for tags 'spinosaurid'.
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https://www.nature.com/articles/s41598-021-97870-8 Two new spinosaurids from the IoW Wessex Formation…making for a total of 3 species including Baryonyx.
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This fossil is listed as a Baryonyx tooth with possible jaw underneath. What do members here make of it? Is it possible to tell whether it's a jaw or not alongside the tooth? Formation: Wealden formation, Hastings.
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An unusual mid-cervical vertebra belonging to a large spinosaurid from the Cenomanian Kem Kem Group of Morocco is described in this new paper. Here is one more example that continues to fuel the debate that there are multiple Spinosaurids in the Kem Kem Group https://journals.library.ualberta.ca/vamp/index.php/VAMP/article/view/29370 Conclusions from paper: The specimen ROM 65537 represents a new spinosaurid mid-cervical morphotype from the Kem Kem Group of Morocco, with a unique combination of characters not previously documented in a single element. The occurrence of a new spinosaurid mid-cervical morphotype in the Kem Kem Group may be unexpected if one accepts the referral of all spinosaurid material from this unit to a single species, Spinosaurus aegyptiacus, for which representative specimens of all expected post-atlas cervical vertebrae have been previously identified (Ibrahim et al. 2020a; Smyth et al. 2020). The morphology of ROM 65537 could be interpreted as representing a greater degree of intraspecific variation in the cervicals of Spinosaurus aegyptiacus than previously recognized, or alternatively, may provide new evidence for the occurrence of two spinosaurid taxa in the Kem Kem Group. The discovery of more material will hopefully allow for future testing of the axial position and taxonomic identity of this unusual specimen.
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Hi, just working and prep on a box full of Kem Kem material incl. some verts (will post later) and some nice teeth. below are two teeth which I would now label up as Spinosaurid indet. - can you guys confirm this? 1. a small one 2.3cm long:
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Came across this site hosted by Christophe Hendrickx a well known theropod Paleontologist. A lot of what he has is already provided in papers but this is the first site completely dedicated to the worldwide group of dinosaurs know as Spinosauridae Pretty cool. This site like many others has a bias toward what paleontologist believes and who he is associated with... so no mention Sigilmassasaurus. I found it interesting but its not gospel just another source of information and opinion. Remember theropods from the Kem Kem especially Spinosaurids are poorly understood and lots of different opinions are out there. It provides multiple language translations from French so its perfect to our worldwide members. http://spinosauridae.fr.gd/Accueil.htm Lots of cool illustrations all together. Spinosaurus vertebra Suchomimus arm
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I've got this long flat bone from the Kem Kem with a wide base, it was presumably attached to a larger bone. It also seems like it's missing the tip. I thought it might be a small spinosaurid neural spine but it has a weird lump of bone on one side so it seems like it is something else. Is this lump a muscle scar? Or a healed wound? And could this bone be an odd spinosaurid neural spine or is it something entirely else?
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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!
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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
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Hi! Are these teeth croc or spino teeth? , The curvature and the robustness makes me wonder if they could be croc teeth. Both are from Kem Kem Tooth 1:
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A distal caudal vertebra of a Spinosaurid. What's slightly unusual about this vertebra is that it's slightly more slender than most Spinosaurid caudal vertebrae, which have a more square shaped centrum as seen from the lateral side. I am currently uncertain whether this is individual variation or that it might be taxonomically significant.
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- cenomanian
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Partial right shoulder blade of a Spinosaurid. Very similar to that of the neotype skeletal reconstruction of Spinosaurus aegyptiacus. There are several large gnaw marks on the lateral side of the bone.
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Spinosaurid claw, don't think it is real?
msantix posted a topic in Is It Real? How to Recognize Fossil Fabrications
Saw this online, it looks suspicious (but i am no expert) and i thought i would post here for confirmation. It is over 6 and a half inches long. -
From the album: Theropod fossils
Baryonyx tooth Wessex Formation- 3 comments
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- spinosaurid
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I've been looking at this 9 cm tooth at an online shop, but it's identified as Suchomimus tenerensis from Hamada gu Guir, Kem Kem, Morocco, and as far as I can gather, Suchomimus has only been found in Niger. I'm very much an amateur but I haven't seen striations on any Spinosaurus teeth I've come across. Any ideas?
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Kem Kem Dinosaur Offerings
Troodon posted a topic in Is It Real? How to Recognize Fossil Fabrications
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".thumb.jpg.2a3d267ea47edac2318d335ab2d47362.jpg)
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Location: Morocco Kem Kem Beds To often Crocodile jaws are composited with Spinosaurid teeth and sold as Spinosaurus jaws. So the purpose of this topic is to show the diagnostic features of Spinosaurid jaws First its extremely rare that any jaw from this region contains functional teeth. Germ/unerupted teeth are more common but those are typically well into the tooth cavity and not protuding above the jaw line. So its highly probable that those you see sold with teeth are composited. We currently do not know if there is a variation between the jaws of the different Spinosaurids described or yet to be discovered in this region so there could be some difference between them but the general characteristics should be similar. Here is a composite skull in private hands and paleontologist Cristophe Hendrickx drawing of that skull Dentary: This is Stromers original plate. 1) You can see the variation in the lateral (side) view of jaw. A very wide anterior end and more V shaped toward the hinge. So jaw sections that you see sold which are straight across are probably crocodile. 2) The teeth are also not positioned in a straight line, and not always next to one another. 3) The most telling feature is the lip on the labial side. It should be present across the entire length of the jaw 4) Broken dentary jaw sections being sold should wide not narrow like croc's Closeup of Lip Close up of germ/unerupted teeth Premaxillary/Maxillary Much more robust than dentary however the lip feature is still present but on the lingual side. Very wide in lateral view. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0144695 dal Sasso, C.; Maganuco, S.; Buffetaut, E.; Mendez, M.A. (2005). New information on the skull of the enigmatic theropod Spinosaurus with remarks on its sizes and affinities. Journal of Vertebrate Paleontology. 25 (4): 888–896. doi:10.1671/0272-4634(2005)025[0888:NIOTSO]2.0.CO;2 Maxilla for sale with composite teeth
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- kem kem beds
- sigilmassasaurus
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From the album: Reptile Fossils
Spinosaurus aegyptiacus Stromer, 1915 A tooth of a Spinosaurid. Location: Kem Kem beds, Morocco Age: Cenomanian, Late Cretaceous© Olof Moleman
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From the album: Reptile Fossils
Spinosaurus aegyptiacus Stromer, 1915 A tooth of a Spinosaur. Location: Kem Kem beds, Morocco Age: Cenomanian, Upper Cretaceous© Olof Moleman
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Fourth cervical vertebra of a Spinosaurid. Very likely Sigilmassasaurus due to the short dorsal spine and proportions of the postzygapophyses.
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Skull bones of an adult Spinosaurus aegyptiacus, consists of a right quadrate and partial quadratojugal. There is some slight lateral crushing, otherwise the bone is in wonderful condition. The quadratojugal is slightly out of place and jammed into the quadrate anteriorly.
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From the album: WhodamanHD's Fossil collection.
Spinosaurid tooth purchased from store. Labeled spinosaurus sp. from morroco. -
The newest addition to our dinosaur fossil collection from the Kem Kem Beds in Morocco, a rooted Spinosaurid tooth. It is 6 inches in length, and really shows the strength and size of this animal. There is some cool feed wear on the tip as well. This one is for my 7 year old son, and will be in his Easter basket on Sunday morning. Spinosaurus is is favorite dinosaur, and he's going to go bananas! Can't wait to see the look on his face! .
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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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From the album: Kem Kem teeth
Possible Spinosaurid
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