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  1. The virus put a damper on my Spring dinosaur collecting trip but I was able to get a partial one in for the Fall. I was able to spend several days at my usual Edmontosaurs bonebed but unfortunately only one day at a channel deposit in Montana where theropod/mammal material can be found. Hopefully next year will be more normal, Hopefully. Quite a few new members since my last trip so I will get into more specifics to get them a view of how I collect this material. First let me share with you a view of the collecting area and the LOCAL wildlife that we deal with on a
  2. Hey all-- looking at this edmontosaurus fibula, considering buying. Do you think it's legit? Why/why not?
  3. Dinosaurs' unique bone structure key to carrying weight Trabecular structure different than mammals, birds Southern Methodist University, PhysOrg, August 20, 2020 The paper is: Trevor G. Aguirre, Aniket Ingrole, Luca Fuller, Tim W. Seek, Anthony R. Fiorillo, Joseph J. W. Sertich, Seth W. Donahue. Differing trabecular bone architecture in dinosaurs and mammals contribute to stiffness and limits on bone strain. PLOS ONE, 2020; 15 (8): e0237042 DOI: 10.1371/journal.pone.0237042 Yours, Paul H.
  4. I finally finished a shadowbox display for some of my Edmontosaurus fossils. The top 2 are a proximal and distal sections of dorsal ribs. Both found a few inches apart, but are probably not the same actual rib. Bottom right is a small rib head section my son found 10 years ago. Its either a juvenile rib head or an adult cervical rib. Bottom left is an ossified tail tendon and the only complete one I've found (or even seen found). You typically only find 1" - 2" long bits and never the vertebral connection. I find it rather funny how much time was spent cleaning, repairing and prepp
  5. LordTrilobite

    T. rex bite marks on Hadrosaur skull?

    I recently got this rather nice Edmontosaurus annectens braincase from the Lance formation. But what's interesting, it has this large hole in the top of the skull. The seller has told me that the hole is not the result of any collecting or prep damage. The seller found the piece themselves and apparently it was found upside down in the field. I've bought from this seller before and they always have high quality fossils so I'm inclined to believe the seller when they say that this hole is old damage. So then my first thought would then be, could this be a big tooth mark? Although I don't w
  6. Although identification of Hadrosaurid teeth in North America is very difficult or impossible some older publications by John Horner give us some information to help us with a few. The information goes back a bit so there might be some new understanding but will share what is published. If anyone has publications that can add to the dentary information of teeth from North America please feel free to post it. Horner notes that on dentary teeth all Saurolophinae teeth have diamond-shaped crown whereas Lambeosaurinae teeth are more elongate see figure 13.4. So one may not be able
  7. hadrosauridae

    Latest headache

    So, this is a labor of love I am attempting (probably poorly) to rebuild. Its a caudal (tail) vert from an Edmontosaurus from the SD hell creek formation. Highly fractured when recovered, and suffering from extreme root rot. Completely missing a "V" shaped portion of the anterior portion of the centrum, probably about 1/5 of the total. Surprisingly I do have the neural spine intact, just have to replace it after I finish reconstructing and filling the centrum. Also included a pic (and my guide) for what it should look like.
  8. hadrosauridae

    Last year's Hell Creek finds

    Here are some of the better finds from my digging trip in South Dakota last year. First up is what is likely an osteoderm from Ankylosaurus. This specimen is gone for research. I've got a "stupid rookie" story to go along with this if anyone is interested. Next is a section of Edmontosaurus rib with the head and part of the main. This still needs final cleaning and consolidation. I'm still debating whether to leave them separate or re-create the missing portion and join them. This is the largest and most complete ossified Edmontosaurus tail tendon
  9. Raulsaurus

    Edmontosaurus jaw

    Hello! I see these edmontosaurus jaws. Edmontosaurus jaw are common? What do you think? Are they good ones or not? Thank you so much. jaw 1
  10. Hello! I see this 3 edmontosaurus claws. The seller told me that are natural and not restored. Are restored? Wich one has better quality? Thank you so much!!
  11. Hi there, i found this tooth on an European auction site and was wondering whether the ID is correct and the quality of the tooth is acceptable. Now I am considering of buying it... Unfortunately there are no better pictures available. According to the rules I have edited them to hide any hints on the auction site. The tooth is labeled as „Edmontosaurus regalis“, the origin is: „Dog Bille quarry, Lusk, Wyoming“. Thanks in advance for your help!
  12. This was on several twitter paleo pages, posted this morning by several paleontologists. Comments and photos are that of the of North Dakota Geological Survey's Paleontology protection program. 2014 article https://www.theguardian.com/us-news/2014/oct/21/dakota-ducbkilled-dinosaur-home-bismarck This was the old "Dakota" exhibit. It was meant to be temporary. The arm is the piece on the bottom edge. It was previously displayed with the palm up, and this side was not well prepared and wasn't exposed before. This is indeed a portion of "Da
  13. Hello! Over the weekend I made some new labels for my fossil collection and I was wondering what everyone thought of them. I have QR codes which link to the corresponding "prehistoric-wildlife.com" species page for more info, and I added in some basic I.D. info to the cards to not crowd them. I also attached numbers to the labels and the fossils, so that I don't need to keep the labels directly next to the fossils. Would love to know what you think, and if anyone wants more information/the template I created. Thanks! P.S. Two of my I.D.s I'm still not 100% on (deltadromeus and Pec
  14. I have been working hard lately on all of our programs and we are very close to having the dinosaur presentation I want us to have. We have a name for this program, Dinos Rock. Yes it is not super creative but for 2nd graders, this is a geology themed program. For 3rd graders, it is adaptation based but the name works. We have added some pieces that gives us more than a few teeth. Nothing museum quality or anything but a few bones help the visual factor. I have been studying the biology, geology and ecology of dinosaurs so the science will be good. my son is working on the art but we wont have
  15. Stegonick23

    Dinosaur Fossil Rib Bone

    Hello everyone! I found this partial rib bone for sale, labeled as a dinosaur (Triceratops or edmontosaurus) rib bone, (reconstructed by the seller). The only locality information given was that it was found in the Hell Creek Formation, and that the rusty color of this specimen comes from the Iron in the matrix. The main thing I'm wondering is if it is a dinosaur rib bone (i'd be happy with just a "Dinosaur indet" I.D.) or if its from another animal. The lack of locality information has be a little concerned, and I wanted to check with the forum to see what you thought. Thank you for your help
  16. fossilsonwheels

    A Dynamite Dino Donation

    A few months ago we purchased a T-Rex tooth from TFF member @Troodon and he also gave us a super nice Nano tooth. I never got his permission to mention that sale or the gift so I get that anonymous. That is our only T-Rex material and it was also the first fossil donation to our program from a Fossil Forum member. Those teeth really helped us get started becasue it allowed us to use our small budget to fill in other parts of the dinosaur program around having T-Rex stuff. We owe him a huge thank you for that and I wanted to share this on the forum. Well we now have another gigantic
  17. We had an awesome item show up in our mail box today, an Edmontosaurus jaw fragment. It is the product of our first trade on TFF and it is really the first dinosaur piece we have that is not a tooth. We traded an extra dinosaur tooth for it. A Hell Creek for Hell Creek swap. Thank you @Captcrunch227 for an awesome trade and for being a great trade partner. We are super happy with the process and the end result. The mail brought another pleasant surprise. Our Acheroraptor tooth arrived. It is a beautiful tooth and a great addition. As if our day was not busy enough, we s
  18. We all know that Magnapaulia was the biggest lambeosaurine hadrosaur that ever lived, but did you know that Kritosaurus means "broken lizard" due to the original specimen being found with broken nasal bones? Did you also know that the name Charonosaurus highlights the fact that it was found near a river by paying homage to the role of Charon in ferrying souls to the underworld along the Styx River? Also note that the name Hypacrosaurus means "under the top lizard" because Barnum Brown considered Hypacrosaurus to be almost the size of T. rex.
  19. On Sunday I took a trip to the Natural History Museum in London. I queued up before it opened at 10am and even before then there was a long queue. I have not visited this museum since I was a child and spent an entire day there (10am to 4.30pm - a long time). I was surprised as it is a lot bigger than I remembered and there was so much to see. This place has the most wonderful things and is an incredible place to learn. The museum showcases a Baryonyx, Sophie the Stegosaurus (the world's most complete Stegosaurus) and more! The moving Trex and Deinonychus are also really realistic in the way t
  20. Troodon

    Spring 2018 Dino Trip

    Anytime you can go collecting fossils its a good time and I would like to share my spring trip to South Dakota and Montana. My South Dakota site is in the upper Hell Creek Formation and full of the hadrosaur Edmontosaurus annectens. I've been collecting this site for over 20 years and its still delivering. We are on the edge of a bluff and the fossil layer can be between 2 to 4 feet. Lots of good bones are to be found but we also have lots of punky or junk bones and about 70 % is collectible. The site is quite large and like I said last year we have no idea of its size bu
  21. Documented in this paper is baby hadrosaur that represents the first occurrence of an articulated nestling dinosaur skeleton from the latest Cretaceous (late Maastrichtian) of North America. It's from the Hell Creek of Montana, Garfield County. Edmontosaurus annectens Red... Scapula Purple.. Vert column Green..Pubis Blue.. Femur & Tibia Journal of Vertebrate Paleontology. ....Paywalled for non members.. A nestling-sized skeleton of Edmontosaurus(Ornithischia, Hadrosauridae) from the Hell Creek Formation of
  22. DevonianDigger

    Rib?

    So, I have a curiosity. I have been, as you may already know, preparing a pair of Edmontosaurus ribs that I obtained, (original location presently unknown, but I can find out.) As I have been piecing the bits together, I have found that I have a third piece that I have reassembled that does not match either rib, nor does it match the material of either rib, but I have been assured they were found in association. It definitely seems like it could be another rib, but I'm not convinced it's from the same critter, or even type of critter. Any thoughts would be appreciated!
  23. DevonianDigger

    Edmontosaurus rib(s) prep

    So I've been working on what I thought originally was 1 Edmontosaurus rib. It has since turned out to be what appears to be an opposing pair of ribs. I thought I would share some of my photos as I go. Please be kind to me, as this is my first vertebrate prep work. Photo I took upon arrival. First rib, top 1/2 complete Top 1/2 with a seemingly extraneous tip, or other unrelated bone. (Not sure.) Working on the head end of the 2nd rib: Matching the other remaining unprepped halves
  24. Hi all, I have a group of dinosaur teeth that needs identifying. They are either triceratops or hadrosaur teeth. They come from Hell Creek Formation of Powder County, Montana. All the teeth are roughly 1.5 cm tall 1) I am guessing hadrosaur 2) I am guessing triceratops 3) I am guessing triceratops 4, 5, 6) These 3 are extremely similar. I can't tell what they are.
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