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Found 25 results

  1. Hello. I'm interested in a Permian Labidosaurus foot/leg. The fossil is advertised as being from Lawton, Oklahoma, Aroyo Formation. I am aware that this piece is a composite and that there has been some repaired bones. The size is not indicated. I'm wondering if these are genuine fossils. Any information is appreciated, thank you.
  2. Hello! I asked this question in the Facebook group so I apologize if any of you are seeing it for a second time, but it was buried in a comment chain so I’m hoping to get a few more expert eyes on it. I received this beautifully prepared Keichousaurus today and it’s truly awesome to see it in person, but now that I’m able to inspect it more closely I’m thinking it may be a composite. There are a few things making me lean that direction: 1) There is an obvious mismatch in the patterns on the matrix, both front and back, when comparing the chunk that the body is on to the chunk that the skull is on. For example, the partial fish fossil on the righthand side just abruptly stops at the seam (last photo, blue arrow) … but it’s maybe possible that this is due to variable flaking/weathering and reattachment 2) The head is dorsal while the body is ventral … but I know it’s possible for this to happen naturally if the neck is twisted 3) The white “veins” that appear to run across both plates (skull and body) are, I think, true calcite veins in one plate and scratches intentionally placed to match on the other. For example, the red arrow in the last photo points to a junction where a true calcite vein from the body plate should cross the skull, but no vein is visible in the skull. A “vein” reappears above the skull but I believe this is just a surface scratch. On the other hand, the skull is perfectly sized and aligned to the “horns” (retroarticular processes) present on the body plate. This seems incredibly difficult to achieve in a fossil of this size. This specimen was prepared in the US and I have no reason to believe the skull is fake, but the uniform spacing and shape of the teeth also looks off to me. That may just be due to incomplete preparation of the area, I can’t tell even under 10x magnification. In any case it’s beautiful to look at, I was just a little disappointed to see that it may be a composite. What are your thoughts?
  3. Hello everyone! I'm going to start posting fossils individually, to gain more traction on the forum. I'll post a few fossils I am worried are fake or composite today, then repost any fossils I have yet to receive identification for with higher-quality images in about a week. Here is an Onchopristis I purchased from a museum. After inspection and contrast with other barbs other collectors own, I have come to the conclusion that the barb is likely composite. In the images below, I have highlighted what I believe to be the original fossil in red. Do other people on the forum support this conclusion? Also, why does it seem to have a blood groove? Thanks for the help, and hope you have a good day.
  4. Hello, This is a composite mosasaurus skull. As I can't afford the real deal, I normally look into this seminice pieces to try to find one that it's not a mess. I saw this one where the seller states that som teeth has been replaced (totally expected) and that has some repairs an reconstructions. At least for me comparing it to some other composite mosasaur skulls where all the bones are a mess, this seems more beautifully composited with a big part of the bones where they should be. Do you see some big red flags of it being a mess in reality with lots of more random bones than expected? What kind of mosasaur species it could be? Thanks!
  5. I found what are claimed to be Basilosaurus jaws online, and I can't decide whether they're authentic. They definitely have real material, but I have a suspicion that they might be composites. I should also note that they are suspiciously cheap [price redacted]. First one is 15.7 inches: Second one is 24.4 inches:
  6. Good day and thank you for reading! I bought a 7-inch Spinosaurus claw in an auction and was hoping to get a second opinion on the condition and authenticity. I can send it back within a month for a full refund. I am also hoping for some pointers in knowing if is repaired or a composite. I have read many of the forums on here, but I have more questions. The length is 7 inches, but I do not have a ruler at the moment. This fossil is supposedly from the Kem Kem beds in Morocco. Any help is appreciated! Btw I do not have many fossils and plan to display this one to the public at my work if I keep it. Reasons why I do not think it is a composite or a carving: The texture and colors match on both ends of claw. They are also appropriate for fossils from Morocco. The shape and feel are good. Blood grooves follow the correct path. Reasons why I question if it is repaired or a composite: The darker brown areas do have a smoother texture and the grain is not visible in the very dark areas. How can you tell if this is substrate or cement/glue? If it is cement or glue, this piece could have been broken in half at some point, since the darker material has a concentration at the center and the tip. The blood grooves are not the exact same size on either side, though they are close. One side is wider. The darker areas do cause some "muddiness" but I cannot tell if it substrate. It is a bit lighter than I expected, but feels solid and has a similar feel and sound to other fossils when I tap it. The density feels similar to a Spinosaurus tooth, but feel less dense than a megalodon tooth.
  7. Hello, I'm interested in buying the Next mosasaur jaw. The problem is that the Seller has a lot of clearly composites so It makes me suspicious. Do you see red flags? The tooth doesn't look attached (with attached I wanted yo mean added, sorry for posible confusion) to me, but I can't really know, never had a real mosasaur jaw in real life to compare. (I Will ask him for more photos)
  8. Hello, I'm considering getting a mosasaur jaw with tooth/teeth, but seeing as how incredibly common these things are faked or composited I wanted to ask everyone for help to determine which ones seem 100% natural, as I certainly can't tell reliably. Besides the purchase itself, I would also like to train myself to better be able to discern these sort of things. There are 7 items I'm considering, along with my personal thoughts on each. Unfortunately scale listed is in inches but these are all roughly 4-5 inches, which is 10-13cm. 1. Seems ok to me, and has a little replacement tooth coming in. I also like the bone cross-section showing the cortical and spongy bone anatomy that one would expect. 2. Tooth seems a bit too large for the jaw, and attachment seems slightly fishy. 3. Another with replacement tooth. Looks ok but same seller as #2 which I was suspicious about. 4. Hard to say with this one having just one image, seems not as much jaw present. 5. Very odd that the teeth are different colors. I'm thinking this is a composite. Cross-section of the "bone" is also not porous at all. 6. Same seller as in #5. Teeth spacing a bit odd, also look different considering they're adjacent. 7. Unsure with this one, but teeth seem fused ok. Sorry for making such a massive post, I'd really appreciate any input whatsoever!
  9. I know that some fossils from Morocco are composites, but that also occurs sometimes when it comes to the Tullimonstrum gregarium (Tully Monster) from Mazon Creek. The only difference with the Tully Monster composites is that they are easily recognizable. Here is a nice 7” example of what I am talking about. With this piece, the added part is the tail, and I think that you would agree that it is a pretty close match. The scale cube is 1 cm. The neck portion, though the jaw is not visible. Transverse bar with the two black eyes. The tail-
  10. Hi all, This tooth (4.2 cm) was advertised as a Carcharodontosaurustooth that was broken and repaired on two spots. I do however strongly suspect that the tip of the tooth is from a different speciment than the rest of the tooth. It seems to have a somewhat different colour, texture and shine to it. What do you think? Thanks!
  11. Hi everyone! This has been kind of a labor of love for me for the past few months. About a year ago I acquired a wholesale lot of 1000 Squalicorax pristodontus for use in little fossil collections I make to sell. As I was going through them I noticed the differences in shape and on a whim that turned into a labor of love thought "I'm going to see if I can make a composite jaw of this species". I checked around and couldn't find anything on a reconstructed jaw from S. pristodontus so everything is my own approximation by comparing all the teeth to each other to look for similarities is angle and proportions, similarities to smaller Squalicorax that have been reconstructed, and similarities to the modern Tiger shark (which in my opinion and I think I saw this elsewhere as well has the most similar teeth of any modern shark to pristodontus) to figure out how many teeth where in a row and where to place them. The project took on a life of it's own in my down time and here is the end result. Anyway, I was hoping to get some feedback on it.
  12. Hi all, I've been offered these two teeth that I've been told are pliosaur teeth. They're from Morocco. They must have a fair amount of repairs due to the glued matrix and cracks etc, but do they look legitimate? The shape looks like pliosaur to me
  13. Hi I realise a lot of these jaws are faked now from looking online, I wonder if you had any thoughts on this jaw, I’m leaning towards your usual Moroccan forgery but would love to get your input, thanks!!
  14. I need help. WHAT IS THIS? It is being sold as a Moroccan mosasaur tooth and jaw section. I suspect the jaw part probably comes from the phosphates and is genuine mosasaur, but is the tooth, spinosaurid? If this is a fake, it is a much higher quality fake than normal. The change in texture at the base of the crown is suspicious, though. I’d like to hear some of your opinions. Thanks.
  15. FossilFascination

    Help to identify this please

    Hello, first post here! I found this strange object at low tide on the shore of the Fraser River in British Columbia, Canada, just near the Agassiz bridge. I have no idea what it might be, but it appears to be at least partially composed of some sort of mineralized strands with what might have once been mud stuck into the crevices. It has been thoroughly cleaned, so everything you see here is rock, not dirt.
  16. Hello all, I'm thinking of buying this carcharodontosaurus tooth, it's 78 mm long, but it looks a little restored in my unprofessional eyes. What do people here think?
  17. Hi everyone, I just recieved this skull which I bought as an impulse buy. I normally do some research before I buy anything and I usually try to stay clear from fossils from China, but this skull got the better of me and without thinking it through I purchased it. I bought the skull as a Felis sp. skull found in the Gianhe Beds, Gansu Province, China (Miocene, 10 mya). I've been wanting some feline or mustelid material for quite some time and I bought this specimen without keeping a clear head, knowing all to well in the back of my head that many of these fossils are composites, not to mention the legality of most vertebrate fossils from China. Kinda feel like an idiot right now And besides all that I am not entirely convinced of it being Feline after all, could be a Mustelid as well, or just a Frankenstein monster. Here are some photo's of the skull, it is all by all a relatively nice skull, but I believe there composite elements to it. Here are the area's that I suspect where there might have been repears or composition. These teeth seem off to me, they look quite big for the skull, and Felis sp. jaws normally don't have this many teeth in the lower jaw. This type of dentition looks more alligned with those of Mustelids (of which a number where present duing the Miocene of this area). I'll probably try to prep the teeth a little bit more in the coming days to see if I can expose some roots of sort. There is an area that has some strange coloration and texture, I believe some repairs or composition that they have tried to hide. This area has quite a strange texture and color, I am quite positive that this was added in. (Maybe with some modern bone of plaster), I'll probably have a look with the microscope tomorrow. For the rest, some good points of the skulls: Each lower jaw looks okay, both side of the lower jaw have imperfections and fractures that run from one end to the other. (Only the front area that is circled looks like it is composite) Some goes for the front part of the skull, all seems natural and okay untill it hits the bit in the middle of the skull that I circled. One of the canine teeth looks to be original as well, with the root that goes into the skull as it should be, some goes for on of the first 2 premolars in the right lower jaw and the first one in the left jaw. It are the rest of the teeth of which I have doubts if they are natural and not placed in, as well as the front jaw piece with the incisors and some area's of the backside of the skull. I hope some here might give me some clarity how much of this specimen is a composite and whether it is Feline of Mustelid. I just hope I didn't bumb my toes to hard on this skull, at least it will be lesson for the future.
  18. Hi! I’m new in the forum. I'm an Italian naturalist, sorry for my english. I wanted to ask for an opinion about this spinosaurus tooth .. I don't think it's a single tooth, in your opinion how much is it composed and restored? thanks!
  19. This fossil caught my eye the first time I saw it, and I keep going back to it, but I haven't gotten it for two reasons: first, it's a little out of my range, and secondly I want to be sure about it before doing anything foolish. It's advertised as a Vinctifer Comptoni, and I have no doubts about the identification, but in researching these fish I saw mention of many fakes and/or composites. However, I've tried to see any composite work or "fakery" on this particular fossil and I don't see any. The problem is my complete inexperience, so I thought I'd bring it to the experts here. I'll attach photos of the fossil and the back side of it. I think what has caught my eye most is the sort of dark brown "mud", as in the eye socket and various places on this, but I don't know if that's anything more than something to stabilize areas of the fossil. I really appreciate you taking a look - of course I want this to be genuine and unworked, but I am completely open to whatever verdict you may have.
  20. An acquaintance of mine bought this at the Tucson gem and mineral show two years ago. He is now interested in selling and I am interested in buying. The price seems fair but of course the big question....is it real? I may add is it all real, is it a composite of different pieces, or is it a fabrication/replica? The whole piece is close to 15 inches at the tallest point, and close to 13 inches at the widest point. Thank you for your help.
  21. Fossil legend

    Morocco crocodile????

    This is a “pterosaurs” jaw I got as a gift a little bit ago. It was sold as a pterosaurs jaw with composite teeth the species is Siroccopteryx But Am almost 100% sure that it is wrongly identified it looks like a crocodile jaw maybe. So if someone can help me identify the jaw that would be amazing.
  22. Hello all. I am looking into getting a nice decorative crinoid fossil without breaking my budget. I was considering getting one of the Moroccan ones that are commonly painted for contrast, then washing the paint off. I know these aren't very often completely faked, but are often composited. I have a couple that I am looking at and just wanted to check if they are genuine, and how much (if any) is composite. I would also like to know if you all think they will turn out nice once the paint is removed. I included pictures of two, labeled fossil A and fossil B. Sorry for the blurry photos, it's all the seller provided. Let me know what you think. Thank you!!
  23. I purchased a unsightly Franken-Basilosaurus tooth a few weeks ago for pretty cheap. Seeing as though i don't have $400-700+ to spend on a nice basilosaurus tooth i saw potential and a fun project in this cheap ugly duckling. Yes, it's Moroccan. It came with the typical glue/sand mix covering it, filling all cracks, voids and roughing out transitions of deceptive franken composites. How it came: Ok, first things first. Clean it. I used acetone, a razor, a needle, a tooth brush and my engraver. Hours of delicate work later i finally see what i'm working with. After cleaning: Yeesh, this might be more work than i thought...... And someone composited a incisor or canine tooth tip on the top of my premolar!! Bwahahaha!! Ok, composites need to go. Bye, bye Next i noticed this was not lined up correctly when it was glued back together. So i grab my trusty dremel tool and proceed to carefully saw this baby in half. Then i removed most of the epoxy/sand glue from each side. Continued.........
  24. I am certainly not getting my hopes up for this fossil, because from experience of seeing theropod teeth placed in croc jaws and people labeling it as a 'rare Spinosaurus or Carcharodontosaurus jaw" on the market, the likelihood of finding an original jaw with associated teeth not from different animals is extremely rare (at least in the case of theropods and pterosaurs). However the seller has this as a Pterosaur jaw piece with one associated Pterosaur tooth and wanted to see whether you all think this is a composite or not. From what i know, there have only been two toothed Pterosaur jaw sections found from the Kem Kem Beds (the holotype for Siroccopteryx and the holotype for Coloborhynchus Fluviferox). The fossils is 5 inches by 3 inches. Thanks.
  25. I saw this item for sale which is of interest. Dercetis sp from Lebanon - Cretaceous. Contacted the seller who informed me that the crack is a repair, not a composite. Thoughts?
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