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Found 4 results

  1. After numerous attempts to locate a certain elusive and geographically remote late Cenomanian bonebed in the Pasquia Hills of Saskatchewan, I was recently successful at finding some of the material and bringing it home. This bonebed was deposited approximately 94 million years ago near the north-eastern margins of the Western Interior Seaway during a period of sediment starvation, resulting in the accumulation and formation of a bioclastic conglomerate made mostly of teeth, bones, and coprolites. Most striking is the abundance of Hesperornithiform bird fossils from the site, namely Pasquiaornis. More information can be found in this study here. Individual bones and teeth are easy to extract from the relatively soft matrix which can usually be broken down either with hand tools, water, or vinegar. The most commonly occuring fossils are shark and fish teeth, including Hybodus, Ptychodus, Carcharias, Squalicorax and Enchodus. Other teeth include those of birds and reptiles, mostly plesiosaurs. Besides the teeth, bone fragments, coprolites, chunks of bentonite, pebbles, fish scales and fish vertebrae are also abundant. My question is whether the bones I have tentatively identified are from Pasquiaornis, and also if anyone has other opinions and conclusive IDs on some of the other miscellaneous fossils I've included. If necessary I can take more photos, and may keep this thread updated with further discoveries as more material is sifted. Photo 1: A sample of the bonebed before prepping. This particular chunk features relatively small fossils, others were made primarily of larger inclusions, Photos 2, 3: Some complete and fragmented long bones, suspected to be from Pasquiaornis, Photo 4: Teeth suspected to originate from Pasquiaornis, along with a suspected claw at the bottom left of the photo, Photo 5: Other miscellaneous fossils from the bonebed, including an assortment of shark, fish, and plesiosaur (?) teeth. Also a sample of some of the bone fragments, vertebrae and coprolites commonly found within the material, Thanks for your attention. Any additional information or questions are greatly appreciated.
  2. Hell Creek Avian Tooth

    This is a pretty interesting tooth and I figured I would post it here to get some additional thoughts. This is labeled as an Avisaurus tooth from Garfield County Montana, Hell Creek formation. The first thing that stood out to me was that the shape was a bit different than most teeth labeled Avisaurus that I have seen. Granted I have not seen many but this looked different. It is also close to 1/4" which seems quite large for an Avisaurus. Since there are several Enantionithean birds from Hell Creek, it could be from one for sure but could it be something else? I did some research and found photos on line of a jaw fragments from an Ichthyornis from Kansas that had a similar looking tooth. I am talking general shape really, not saying that is what this is. I also found a comparative study of Hesperornis and Ichthyornis teeth on line and it has a similar shape to one of the Hesperornis teeth in that study. I am very unfamiliar with Avian teeth so I am strictly going by what little research I could find on line. I know there are a couple of Hesperorniformes and an unnamed Ichthyornithean from Hell Creek so it is possible that this tooth belongs to a bird that is not an Enantionithean but I thought this is an ideal tooth to put on the forum and seek some help from those with far more knowledge. Any comments, insights, or thoughts ?
  3. Some marine non-whales

    Three models, three very different animals, three methods: Anomalocaris, sculpted in fimo according to fossil drawings, 6 cm long Hesperornis, digitally distorted from a recent bird skeleton and Tyrannosaurus skull, 3d printed, 9cm long. Hydrodamalis, skull digitally distorted from a dog skull, postcranial plywood and putty like my whales, 38 cm. Aloha J
  4. Alas, Poor Yoruk...

    I just acquired this old reproduction Hesperornis skull to go with the substantial number of bones (from four individuals) I have picked-up over the past several months. The skeletal elements, in total comprising maybe 30% of a composit bird, require quite a bit of preparation to make them presentable (they are all from S. W. South Dakota (Pierre Shale), and are heavily crystallized). Eventually, they should make a pretty impressive mount
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