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  1. Hi all Some of you may remember that I used to (and still do) research on fossils from the Late Cretaceous chalk of Denmark... Now there are 2 main chalk sites in Denmark, Møns Klint and Stevns Klint. My work focuses on the stuff from Møns Klint, but in all honesty there's some spectacular fossils coming out of both localities. One thing that both Møns and Stevns have in common is that fossils of mosasaurs (giant lizard-like marine reptiles) are extremely rare, with only a small handful of specimens found every year. A few years ago, I went to the Geomuseum Faxe (south of Copenhage
  2. JoetheJerseyGuy

    Big Brook, NJ - Bones

    Beyond the shark teeth I acquired these two bones from a recent trip looking for fossils in Big Brook, NJ. Not sure how to differentiate if this is recent or from the Late Cretaceous associated with the others fossils found in the brook.
  3. When looking on a muddy day in the maryland late cretaceous marine site. Found a small 2 inches 5-6 cm long bone. all help will be appreciated. I am not sure what bone it is, let alone what species. Like most bone from this site the surface texture is in general rough.
  4. Excellent paper describing the osteology of the Mongolian ornithischian Haya griva Good reference document for other Hypsilophodontids https://Haya grivadigitallibrary.amnh.org/handle/2246/7253 Troodontid tooth found in matrix. Possibly enjoying dinner
  5. Edmontosaurus annectens may have been the largest dinosaur in the Hell Creek/Lance Formations not T rex. Here is an article that gets into the specifics. https://thesauropodomorphlair.wordpress.com/2021/02/10/size-of-the-duck-titans/
  6. I found this specimen along with some other fossils during a fossil hunt. This vertebra is very peculiar and unique, due to its small size, and it’s composition. It is completely permineralized by hematite, making it feel much heavier than the average rock. It almost feels like a chunk of metal. Probably belongs to one of the endemic hadrosaur species of the Cerro del Pueblo Formation, such as Velafrons coahuilensis, or Latirhinus uitstlani.
  7. For Pachycephalosaurid lovers this paper documents the morphology & ontogeny from +20 specimens of Sphaerotholus buchholtzae. It also evaluates the systematics to show that it's a distinct and valid genus in the Hell Creek Formation along with Pachycephalosaurus wyomingensis. https://academic.oup.com/zoolinnean/advance-article-abstract/doi/10.1093/zoolinnean/zlaa179/6125117
  8. I'm offering for trade about half a gallon of microfossil matrix collected from Post Oak Creek, Sherman, TX. It's rich in marine fossils from the Late Cretaceous Interior Seaway (Eagle Ford Group ~ 90 Ma). I cannot guarantee what you will find. I however can comment on what you can find based on my experience with this site. Sawfish oral teeth are very common. You may also find a variety of sharks' teeth, with about 8 genera that I've found so far in similar matrix (Squalicorax, Cretoxyrhina, Cretodus, Cretolamna, Ptychodus, Scapanorhynchus, Hybodus, Cantioscyllium, ...). Reptile teeth are unc
  9. A new small dromaeosaurid dinosaur, Shri devi, from the Late Cretaceous deposit of the Barun Goyot Formation at Khulsan, Mongolia, is described here. Pretty cool unfortunately no skull but teeth should be small and very similar to Velociraptor Paper provides a good reference source to ID dromaeosaurid bones from other regions http://digitallibrary.amnh.org/handle/2246/7251 Check out that Digit II killing claw
  10. RooBug

    Hell Creek Fossil ID Help

    Hello all, it's been a very long time and I'm posting from my phone in an area with no wifi, so I hope I've followed all the rules as best I can. I was out fossil hunting in the Upper Hell Creek in eastern Montana last year, and found this bone. (Sorry for the images, I will not be able to retake them for months.) It was found in a sandy mudstone and appears to be hollow (and very crumbly). Its about 10 inches long.My best guess is a Struthiomimus femur, but if anyone knows different please let me know. Thank you for any help you can give!
  11. Calcanay

    Hell Creek vertebra

    Hello! I got this dinosaur vertebra from Hell Creek (Montana) a few years back. It was sold to me as a Triceratops vertebra but I don't know how that ID was made. It's not in the best condition (has moss(?) on it and has been broken and then glued back together) but it is about 13-14 centimetres across so it is clearly from a big dinosaur, but there were plenty of those in Hell Creek (even two large ceratopsids - Triceratops and Torosaurus). Looking for any insight into how an ID could be made here and if Triceratops (or even just ceratopsid) is correct
  12. Praefectus

    Tyrannosaur Tooth

    Premaxillary tooth EDIT: Changed from Tyrannosaurus rex to Tyrannosaurid indet.
  13. Praefectus

    Indeterminate Tyrannosaur

    Dimensions: CH = 41 mm CWB = 10 mm CBL = 16 mm MC = 18 denticles/5 mm DC = 14 denticles/5 mm DSDI = 1.29
  14. A new paper is out online that you may find interesting: Verónica Díez Díaz, Géraldine Garcia, Xabier Pereda Suberbiola, Benjamin Jentgen-Ceschino, Koen Stein, Pascal Godefroit & Xavier Valentin (2020) A new titanosaur (Dinosauria: Sauropoda) from the Upper Cretaceous of Velaux-La-Bastide Neuve (southern France). Historical Biology DOI: 10.1080/08912963.2020.1841184 The Provence region of France is best known for its wine and Impressionist painters, but it also has yielded many of Europe's last sauropods. Garrigatitan constitutes the latest addition to southern Fran
  15. val horn

    unknown jaw pieces

    In a late cretaceous marine formation I found two little pieces of jaw. I would like help in id if possible. One is maybe 2.5 cm in length and the other 3 cm, both have the ragged texture of almost everything from this site. I wonder (hope) if the upper is croc, and if the lower is a small mosasaur. It does not match the typical fish jaws that I find because of the sharp curve to the teeth. Help and ideas will be appreciated.
  16. This work by Denver Fowler reviews the stratigraphy of the Hell Creek Formation, as currently understood using the Fort Peck as his study area https://www.mdpi.com/2076-3263/10/11/435
  17. Hello, My 9 year old son found this cool jaw section. It may be coincidental, but beside it was an ankylosaur tooth, partially rooted. We are unsure if it was associated. Perhaps someone will find this interesting or know more. Will post more photos if necessary.
  18. I recently found this at Big Brook in NJ, USA. I am not sure what this is. The outer layer appears to have a spiral formation towards one end. It's just about 1 inch long (maybe a little less). Thanks for any help!
  19. Good morning folks, I was sorting through a box of unknown fragments from surface collecting this summer. I inspected more closely this piece that looks like a spike. Not quite symmetrical. Looks like designed as potentially a partially lateral nodule or armor spike. I was referring to some past discussions on cerotopsian frill material and am curious if this may even be a frill spike?!? Any help would be appreciated. Thanks everyone.
  20. Dear Fellow Forum Members, On this day, the 4th of October in the year 2020, @itsronni @Masp @Trevor and @Jeffrey P ventured to a frequented late cretaceous stream in New Jersey. I first met up with Jeff and did some sifting before later locating itsronni and Masp further downstream. Finds came somewhat slowly after we first stopped to sift but after some time we gradually found more fossils. We stayed in one area for the majority of the day up until Jeff had to leave. After some deliberation, the remaining members and I walked a quarter mile upstream and then left shortly afterwar
  21. MedicineHat

    Tiny premaxillery tooth - theropod

    Hello, my son brought me this sparkling enamel fossil and I recognized it as a possible premaxillery tooth of a tyrannosaur?? I have found much larger ones but not ever this tiny. Any ideas what species it could belong to? Baby Albertosaurus? Raptor?
  22. Dear NJ fossil collectors, Would anyone like to join me for a sifting hunt on Oct.3rd / 4th (Saturday / Sunday) at Ramanessin Brook? DM me for a time or date, I can probably go both days. @Familyroadtrip @The Jersey Devil @frankh8147 @hokietech96 @Jeffrey P @Darktooth @brad hinkelman @itsronni @Bob-ay @FossilizedJello @Carl @bucky @wetwilly @Neec @ColeFossilFinder @Masp @butchndad
  23. Jose Montemayor

    Allegedly new fish species from Vallecillo

    Hello everyone, I saw this specimen for sale as a new species from the Vallecillo quarries. I haven’t seen something like this from this formation. Does anyone have any idea of what species might this be? The size of fossil is approximately 40 cms long. The size of the matrix is 63 cms * 43 cms. The pictures were not taken by me. Thanks everyone.
  24. Hello everyone, I hope life has been pacing along well for all of you. At the moment, I find myself at school and away from my idealistic home, that is, buried alongside the Cretaceous fossils swimming in the various soils of NJ. No worry though! I have been going through some micro gravel in Ohio and today will present you with my second batch of finds. I believe I've found some cool things so far. The most notable differences between this post and my previous (besides the fossils of course) is that I post fewer photos and more group shots. Enjoy. Meristodo
  25. val horn

    Cretaceous long bone?

    Found this in a marine late cretaceous formation in Maryland. Two bones that were immediately associated with each other. I thought the flat bone was turtle when I saw it, but this other bone was just underneath it. Now I really dont know what I am looking at. help?
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