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Found 100 results

  1. Good afternoon for all, in the greater Forum Fossil of the world ! Unfortunately the seller does not have much information regarding this bone. It is described in the advertisement simply as African unidentified bone of reptile, Kem Kem. Any help what that might be? Thanks for all the help!
  2. Baby Keichousaurus hui

    This is a picture of my baby Keichousaurus hui that I got on an auction site for very cheap price. The slate is 8x5cm but the reptile itself is 5cm. It is very small so to see the bones and details you need a magnifying glass. Hope you like the post.
  3. Tethysaurus neck vertebrae

    Tethysaurus's are one of my favorite Marine reptile species. They are a species of more primitive mosasaur and they are considered to be related to Russelosaurus and Yaguarasaurus. Even though not as known and loved as Mosasaurs and other large Mosasaurids, they are still quite a fascinating species of Marine reptile.
  4. Limb? bone Reptilian? Florida

    Hoping this isnt too incomplete up to ID. Was in the dugong scrap garage box but I'm pretty sure now it shouldnt have been....Anyone recognize what it actually is and what it belongs to? It has a nice twisted shape to it. The base is relatively flat and seems to be only very slightly worn. The opposite end seems to have been pretty much sheared off and has an interesting groove remaining that I've circled in red. Thanks for the looks and any info you might be able to provide. Latest thought is that its reptilian, possibly a gator, maybe an ulna? Regards, Chris
  5. Hello,is this keichousaurus genuine?i've found it on ebay
  6. Kem Kem Vertebrae ID Thread

    So, lets figure out vertebrae from the Kem Kem beds. As many of you know the Kem Kem beds has a pretty enigmatic palaeo fauna. There is some literature about it, but not a whole lot. Some of it is behind a paywall and much information is pretty scattered. So I got this idea that maybe we could combine our knowledge and information to collectively get a better picture of which bone belongs to which animal, in this case, vertebrae. I know some of you have some fantastic specimens in your collections, if we combine these in this thread we might be able to see some patterns. We probably won't be able to put a genus or species name on each type, but perhaps assigning certain vertebrae to a morphotype might be possible. With that I encourage everyone that has any vertebrae from the Kem Kem beds to share photos of their specimens and post them here so we can use this thread as a sort of library as well as an ID thread that everyone can use to better ID their Kem Kem vertebrae. So please, share your photos! And it might help to number your specimens for easier reference. I will be updating this first post as new information arises with examples to make ID easier. Theropods Spinosaurus aegyptiacus Spinosaurus is known for it's tall neural spines, which are pretty characteristic. Unlike Sigilmassasaurus, Spinosaurus does not have the ventral triangular rough plateau on the centra Spinosaurus cervical vertebrae Spinosaurus dorsal, sacral and caudal vertebrae Sigilmassasaurus brevicollis Sigilmassasaurus is a Spinosaurid that might be closely related to Baryonyx and Suchomimus. It differs from Spinosaurus in that it has a ventral keel on many vertebrae and a triangular rough plateau on the bottom back end. A is Sigilmassasaurus, B is Baryonyx Sigilmassasaurus cervical vertebrae Sigilmassasaurus dorsal vertebrae Indeterminate Spinosaurid vertebrae Not a whole lot has been published yet, so some bones can probably not be ID'd on genus level. Spinosaurid caudal vertebrae From Paleoworld-101's collection Charcharodontosaurids Due to an old paper Sigilmassasaurus vertebrae are sometimes misidentified as Carcharodontosaurid. These vertebrae should be identified on the basis of the original description by Stromer. Carcharodontosaurid cervical vertebrae Abelisaurids Abelisaurid dorsal vertebrae From Troodon's collection Deltadromeus agilis better examples needed Sauropods Rebbachisaurus garasbae Not a whole lot is known about this titanosaur, as only a few bones have been found. Notice that the vertebrae are very extensively pneumaticised. Rebbachisaurus dorsal vertebrae Unnamed Titanosaurian mid caudal vertebra Crocodiles more examples needed Kemkemia This crocodile is only known by a single terminal caudal vertebra. Kemkemia caudal vertebra Turtles examples needed Pterosaurs Azhdarchids Azhdarchid (probably Alanqa) posterior fragment cervical vertebra Azhdarchid Mid cervical vertebra Sources Spinosaurids https://peerj.com/articles/1323/?utm_source=TrendMD&utm_campaign=PeerJ_TrendMD_1&utm_medium=TrendMD http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0144695 Sauropods Jeffrey A. Wilson & Ronan Allain (2015) Osteology of Rebbachisaurus garasbae Lavocat, 1954, a diplodocoid (Dinosauria, Sauropoda) from the early Late Cretaceous–aged Kem Kem beds of southeastern Morocco, Journal of Vertebrate Paleontology, 35:4, e1000701, DOI: 10.1080/02724634.2014.1000701 https://www.researchgate.net/publication/304214496_Evidence_of_a_derived_titanosaurian_Dinosauria_Sauropoda_in_the_Kem_Kem_beds_of_Morocco_with_comments_on_sauropod_paleoecology_in_the_Cretaceous_of_Africa Kemkemia sisn.pagepress.org/index.php/nhs/article/viewFile/nhs.2012.119/32 Pterosaurs https://docs.google.com/viewer?url=http%3A%2F%2Fwww.thefossilforum.com%2Fapplications%2Fcore%2Finterface%2Ffile%2Fattachment.php%3Fid%3D432009&fname=journal.pone.0010875.PDF&pdf=true https://riviste.unimi.it/index.php/RIPS/article/view/5967
  7. Fossil?

    Hi All, Wondering if you could give me some feedback. Is this a fossil, preservation? Cell plates are visible and imprints. Photos taken wet. Thanks!! Kim
  8. Is It A Fossil?

    Hi I am new to this forum. I live in Ca and collect minerals, fossils and as an amateur photographer, I am photographing some of my collections. These photos are of an unopened small geode (3 cm, or 1.25 inches tall). They are all of 1 specimen taken at different angles. Many decades ago I received a bag of small geodes all formed in the same light green volcanic ash. This was among them. No other geodes in the bag had this texture or pattern on the outside. I put it aside thinking it may be a fossilized impression from a prehistoric reptile or tortoise foot. I have never gotten a definitive answer. Sadly I can’t recall for certain the location for the source of the geodes, but perhaps it was Chihuahua Mexico. Is this a fossil, or merely some crystallization causing the surface to appear this way? Any help would be appreciated Thanks Tom
  9. Santa Fe River fossil-oddities

    Hi all, From Fossil Voyages with @Cris, at the end of our trip together in the Santa Fe, I got spoiled with a bunch of great fossils! Unfortunately I don’t remember what everything was... Anyways, please help me putting an ID on all of these! All from the Santa Fe River in north Florida, and all likely from the Pleistocene. Thanks in advance, Max #1
  10. My name is Gary L Thompson I am the sole discover of the Mosasaur Prognathadon stadtmani that currently resides at BYU, This specimen was found in Cedaredge, Colorado in 1975. It took over 40 years to get the complete casting of this mosasaur. I thought maybe this might be a story of interest for you since this is an extremely rare fossilized specimen from about 85 million years ago and the fossilized marine reptile is the only one ever found on the western side of the prehistoric sea that once covered an area ranging from Utah to Kansas and Nebraska. It was a ferocious creature approximately 35 feet long. The excavated skull bones remain the property of Brigham Young University’s Paleontology Museum." I just wanted update every one on some misleading information regarding the find and to send the most current information updates. It appears that the Genus name is probably going to change to a brand new Genus, the scientific community is still discussing this one, will try to update when that happens. BYU has now completed the entire skeleton and now have it up as of the beginning of the year. I have included current photos of it along with "My true story" and all corresponding credits for the find, scientific research and preparation of the specimen. I just thought these might be of interest to you. The photos are from the BYU webpage. My true story finding a mosaster.docx Order of Contact and Credits.docx Original_aticle_1975.docx
  11. Femur bone from Kem Kem

    Hi, I saw this unidentified femur from the Kem Kem beds and i was just wondering if it possible to id it or narrow it down to potential candidates. The femur is 1.42" long. Thanks.
  12. Wealden bone

    An unidentified bone-like specimen from Wealden supergroup, Hastings subgroup (Cretaceous, Valanginian). Scalebar 1 cm. Looks like a medium-size reptile bone, but which bone and which reptile (if it actually is a reptile)? Any help would be very appreciated.
  13. Kyiv turtle, 3 associated scutes

    From the album Dinosaurs and Reptiles

    Eocene Kyiv suite, Lutetian-Bartonian. Personal find. 3 fused scutes: C1,2 - costal scutes, N - neural scute, R- rib. Approximate position of the specimen is shown on the diagramm.
  14. Texas Tooth

    Found this reptile tooth in Dallas County. What do y'all think it is?
  15. Hello everyone! I need some help on identification with a few fossils from Monmouth County, New Jersey. I believe the fossils in the first two groups of pictures are all Cretaceous Marine reptile bone but I was wondering if anyone could link any of them to any particular creature. The second is a vertebra I recently found; I was thinking possible Plesiosaur but was unsure. Thanks! -Frank .. ..
  16. Solnhofen area is truly a gem among fossil sites https://www.eurekalert.org/pub_releases/2017-12/jhm-rdf120517.php
  17. I found this yesterday at North Sulfur River. It was pretty amorphous looking, but I thought it might be a bone fragment or vertebra stuck in the mud. I took a chisel to the outside edge of the mud clump to see if I could crack the mud and pull some of it off. This is what it looks like. It looks a lot like reptile skin. It looks like some of the skin texture came off on the other piece. What on earth is this? I’m still trying to get the rest of the mud off only more carefully though. I think there may be a small bone in some of the mud around it too.
  18. Hi all, I’m about to purchase this nice set of Dimetrodon vertebrae from the Texas Red Beds. Just wondering if they are in fact Dimetrodon verts? Thank you! Jojo
  19. Skin Fossil

    Hello, I found this little fossil while walking along the Missouri River near St. Louis, MO. The fossil is two sided and the pattern is the same on both sides. The fossil is thin so I wasn't thinking a turtle shell. The last two pictures are a picture of the top and bottom. Could it be a skin fossil?
  20. I saw those fossils online,i wonder are the real onces or is it a replica...
  21. Turtle Plastron

    This piece of turtle plastron was identified by Dr. Weems (an in hand look) as the sea turtle Carolinochelys wilsoni. I had been trying to I.D. it for a while before I was able to get it into his hands. It is about 1/4 of the plastron and this turtle is thought to possibly be the extinct ancestor of the modern loggerhead turtle (Caretta caretta). C. wilsoni is the only species in the genus.
  22. I have a question if Ichthyosaur is considered a reptile how come it gave birth to its young live? What separates it from mammals?
  23. Title says it all really. Can anybody help? @abyssunder @doushantuo @Fruitbat Thanks!
  24. Unknown tooth

    I have no information on this other than it was found in a fossiliferous marine deposit. Any help is appreciated.
  25. Ichthyosaur tooth

    From the album Albian vertebrates of Ukraine

    Partial ichthyosaur tooth, supposedly Platypterygius (however now it is a wastebasket taxon)
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