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  1. Hello, Im not sure this is the right place to put this but I came across this on a website that I've seen members say is reputable, if not overpriced. The thing I found interesting is that the site claims this ankylosaur tail club has a cutting edge, which is the straight side of the fossil in the pic. Is that a real thing? I've been following dinosaur news since I was a kid and I never heard of ankylosaur tail clubs having an axe-blade like this one, just the smashing club. Or if they do, which species has this? I wish I could afford this but for now I just have a head spike.
  2. svcgoat

    Ankylosaur scute/osteoderm

    Hello does this look like ankylosaur armor? Seller says it's from Hell Creek @jpc @Dino Dad 81 @hadrosauridae
  3. svcgoat

    Ankylosaur from Niger?

    A collector is selling some of his collection and one of the pieces I am interested in one of these two Ankylosaur specimens labeled from Cretaceous Niger. However to my understanding the only Ankylosaur described from Africa is from the Middle Jurassic in Morocco. Are these from sm Ankylosaur at least even if local can't 109% be verified? @jpc @hadrosauridae
  4. Sisco Kid

    Ankylosaur Osteoderm

    Discovered in 2023 in northwestern New Mexico, I found what is believed to be an ankylosaur-type osteoderm. Compared to many other fossils of that type, it is rather small and thin, with a diameter of 88mm X 75mm, and measures 21mm thick from the flat basal surface to its peak on the opposite side. The thickness of the edge is 8mm. The basal surface is remarkable in that it is essentially intact, and displays an intricate web of structural fibers. These photos were referred to a prominent paleontologist in Switzerland who believed the osteoderm may be from an ankylosaurus in the family Ankylosauridae. A local paleontologist was also notified of the find. Any observations or additional information on this osteoderm is invited.
  5. svcgoat

    Ankylosaurus scute/partial club?

    Sell says this is either a scute or partial club of Ankylosaurus. It's from the Hell Creek Formation in South Dakota. Seller says it was found with other scutes. Any way to ID this?
  6. Hi All, First time posting! I need help with a fossil I found in the Hell Creek Formation of Harding County, SD this year. At first I thought it was a piece of Triceratops frill, but the more I prepped it, it appears to have edges with bone surface most of the way around it. If it was a piece of frill, I would not expect the edges to taper off (unless it was from a juvenile I guess). If it is a scute then it is absolutely huge and not like anything I have seen before. Hopefully the fossil community can help shed some light on this mystery. Any photos or links to reference other fossils would be helpful as well. Thank you in advance for your help! - Ryan
  7. Rikache

    Ankylosaurs osteoderm?

    Howdy, I hope everyone’s having a great week! I was wondering if I could get yalls quick opinion about this specimen I came across. Seller claims ankylosaurus scute or triceratops frill fragment from Valley County, MT North of Hinsdale. I haven’t contributed to my collection very much recently and I think an ankylosaurus scute would make a great addition. However, the grooves of the specimen remind me of the vessel grooves I usually see on ceratopsian frill fossils. I know this one may be a bit difficult to identify but I’d love to hear your guy’s thoughts. Thank you all!
  8. ThePhysicist

    Nodosauridae cf. Denversaurus

    From the album: Hell Creek / Lance Formations

    A river-tumbled Nodosaurid tooth (cousin of the club-tailed Ankylosaurids), possibly Denversaurus. Found in a channel deposit.
  9. Nanotyrannus35

    Possible Ankylosaur or Nodosaur Osteoderm

    I have this piece of bone that due to the texture and shape I think might be an ankylosaur osteoderm. It also seems like it might have some predation, shown by the circled area. It's from the Lance fm of Weston Co. WY. Thanks for any help.
  10. 'Extremely rare' fossilized dinosaur voice box suggests they sounded birdlike (msn.com) s42003-023-04513-x.pdf The "extremely rare" discovery of an 80 million-year-old fossilized voice box that belonged to an armored dinosaur reveals that the ancient beast may have sounded more birdlike than experts previously thought, new research suggests.
  11. Daze

    Ankylosaur or Ceratopsian?

    Can anyone please ID this piece, @Troodon? Could it be an Ankylosaur osteoderm or maybe Ceratopsian?
  12. I bought this Ankylosaur osteoderm scute awhile back. I hope the narrow down the species. The scute was found in the Judith River Formation in Aberta Canada. It is legally collected and was orginaly sold in the late 80's. There are several Ankylosaur species in the Judith River formation. Hope someone can narrow it down to one Its 17 cm or 6.7 inch. Thanks in advance!
  13. ThePhysicist

    Ankylosaurus tooth

    From the album: Hell Creek / Lance Formations

    One of my favorites as a kid - the archetypical Ankylosaurian - Ankylosaurus. Ankylosaurus teeth appear to be fairly uncommon in Hell Creek - some paleontologists have suggested that Ankylosaurus may have lived in the highlands or nearer the coast of Laramidia. Most "Ankylosaurus" teeth you see for sale are actually Nodosaurid (cf. Denversaurus), for whatever reason, they seem to be far more common. Ankylosaurus teeth also often have wear facets, as this one does. The denticles give their teeth a "leaf-like" appearance. Given their shorter stature, Ankylosaurians probably were low-browsers. This one was found by a rancher last year, and was rediscovered and prepped out of the matrix in October.
  14. Hello, I am posting pics of several Ankylosaurid teeth I found in the Mesaverde Formation in Wyoming. Can anyone ID them as to a certain species? "NOTICED PICS LOADED UP OUT OF ORDER, 2ND PIC GOES WITH LAST ONE" I know I need better pics but my current phone takes terrible close up pics. I know that you can buy a lens that you can attach to the ohone for pics; does that work well? Anyway, these are from at least 2 different sites and we're found over the course of a couple of years. Thanks!
  15. ThePhysicist

    Ankylosaurus tooth

    From the album: Dinosaurs

    A rare tooth from the Hell Creek formation. Curiously most Ankylosaurian teeth you see online are actually Nodosaurid. This one is the Ankylosaurus.
  16. ThePhysicist

    Ankylosaurus tooth

    From the album: Hell Creek / Lance Formations

    The denticles and enamel of this Ankylosaurus tooth are exceedingly well-preserved.
  17. Found in wise county in the puluxy formation..i believe this would classify as a replacement fossil ..maybe trace but its pretty apparent the skull structure is identical.
  18. Opabinia Blues

    Judith River Ankylosaur Teeth

    Hi all, A bulk purchase of channel deposit material from the Judith River Formation of Montana has yielded these teeth, each of which appears to have some ankylosaurian affinities. I have read @Troodon’s guide on this very topic, but alas I still would like a second look at some of these teeth. I do not have the capacity to take very good macro photos, but I hope that these are passable at least for an initial glance. The scale of each tooth. The numbering on the bottom is centimeters while the numbering on top is in inches Tooth 1: I’m 99% sure this one is ankylosauridae Tooth 2: Might actually be Ceratopsid, but the presence of “denticles” is what’s making me post this one. Tooth 3: Ditto for this tooth, may be Ceratopsid, but we’ll see. Tooth 4: 80% sure this one is Nodosauridae with feeding wear. The opposing side has the distinctive “shelf” that gives the tooth a mitt look. Let me know if a picture of the other side is needed. Tooth 5: Also thinking nodosaur on this one, fairly confident Thanks everyone!
  19. Ginger0412

    Is this the tail of an ankylosaurus?

    Is this the tail of an ankylosaurus? If anyone knows, please let me know! Thanks in advance!
  20. Rikache

    Ankylosaur Scute or Pachy Armor?

    Hi there everyone! This one might be a bit of a tough one. I came across this listing for a possible partial ankylosaur osteoderm or pachycephalosaurus skull armor and was wondering if anyone could help positively ID the specimen. The fossil was found on private ranch land in Harding County, South Dakota. The specimen is small and obviously a fragment so I’m not expecting any clear answers; but in the past I have come across whole ankylosaur osteoderms that looked very similar in terms of texture and coloring, so my untrained eye is inclined to lean towards that conclusion. Important information Locality: Harding County, SD (Hell Creek Formation Size: ~0.8” wide Thank you all so much for your help and for always making me feel like a welcome member of the community, you all seriously rock! Cheers!
  21. Hi all, I saw this interesting specimen online. It is labeled as Ankylosaur dermal scute, was found in the Hell Creek Fm., Hill County, Montana. Size is 4,8 cm x 3,2 cm (1.88" x 1.26"). These are the pictures provided: What strikes me about this specimen is the shape of the bony base and the grained surface. My knowledge about osteoderms is rather limited, so I was wondering if anyone can support or refine the given ID? The only image I found so far that resembles that shape, as opposed to the flat sided scutes, is that of an thoracic osteoderm (https://www.researchgate.net/publication/276289070_Nuevas_evidencias_de_dinosaurios_de_la_Formacion_Puerto_Yerua_Cretacico_Provincia_de_Entre_Rios_Argentina): Thank you for your time and help
  22. WillEvans6097

    Ankylosaurus Tooth?

    Hello fellow fossil fans! I've recently purchased this tooth online and I'm struggling to determine whether it is actually an Ankylosaurus tooth (as advertised) or whether it is a Nodosaur tooth instead. The description is as follows: "0.5" ANKYLOSAURUS FOSSIL TOOTH LANCE CREEK FM CRETACEOUS DINOSAUR WY COA & DISPLAY Location: Lance Creek Formation, Wyoming (Private Land Origin) Weight: 0.2 Ounces Dimensions: 0.5 Inches Long 0.4 Inches Wide, 0.2 Inches Thick" I would really appreciate anyones help to figure this out!
  23. Fossil Maniac

    Ankylosaur tooth or nodosaur tooth?

    Hello! I recently bought this ankylosaur tooth (in fact it arrived today) and I was wondering if it could be from a nodosaur. Thank you! (Judith river formation hill county Montana)
  24. PaleoNoel

    Ankylosaur armor?

    I was hoping some folks on the forum could confirm this ID for me. I found this interesting little piece in the hell creek formation of South Dakota back in July with Paleoprospectors. I was told by one of the guides that it could potentially be a piece of skull armor from a young ankylosaur. I want to know what everyone here thinks.
  25. FF7_Yuffie

    UK Ankylosaur ungual?

    Hello, any help with this? Advertised as a possible ankylosaur ungual. From Hastings Subbgroup, Wealden Clay, Sussex. Description says the grooves in the bone surface are consistent with thyreophoran unguals. Yet, when I compare the US ankylosaur unguals--I don't see a resemblance at all. Could be a quite worn one? 1.8 inches. Cheers
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