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  1. thelivingdead531

    The Mammoth Site and more

    I will warn you all now that this is a photo heavy post, especially for The Mammoth Site. I wanted anyone to see everything that I was able to since they might not get there on their own. I'll start with The Mammoth Site in Hot Springs, South Dakota. It's still an active paleontological site that was first discovered in 1974 while building for a housing development. The story of how the site came to be can be found on mammothsite.org. Please forgive my succinct description, my family has been driving around for several days and we're tired. I'm happy to try to answer any questions
  2. I have here three verts from the Hell Creek of Harding County, South Dakota. They were sold as dinosaur. I'm wondering if it's possible to narrow it down further than that. This one is 2.13" long and 1.89" wide
  3. PaleoNoel

    Interesting Hell Creek Vertebra

    Hi everyone, I found this little, mostly complete vertebra in the Hell Creek formation of South Dakota in 2019. I don't really know what to make of it as it's very porous, and amphiplatyan (flat on both sides), although I'm not sure how much of that could be attributable to wear. I believe it's safe to cross of squamate (due to lack of concavity) and champsosaur (overall shape) off the list. While most of the crocodilian verebrae I have found in the hell creek have have a convex and concave end, I am aware that some can be found that are flat sided. The porosity of the bone makes me hopeful th
  4. 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
  5. PaleoNoel

    Ankylosaur armor?

    I was hoping some folks on the forum could confirm this ID for me. I found this interesting little piece in the hell creek formation of South Dakota back in July with Paleoprospectors. I was told by one of the guides that it could potentially be a piece of skull armor from a young ankylosaur. I want to know what everyone here thinks.
  6. Squirrelman91

    Hell Creek Claw ID - Dakotaraptor?

    Hi everyone! I have a large claw from the Hell Creek Formation of Harding County, South Dakota that I was hoping to have help identifying. It is large enough that I initially believed it stood a chance at being tyrannosaurid, but it seems a bit more compressed than tyrannosaur claws I’ve worked with in the past - particularly on the lower ridge. The ventral surface of the claw is also distinctly flat rather than rounded, which seems unusual. Could this be a Dakotaraptor claw or is that just wishful thinking? Large Anzu perhaps? It is right around 1.75 inches across the length of the claw (sorr
  7. LordTrilobite

    White River Rhino Skull Prep

    Today I got this mostly complete Subhyracodon skull from the White River formation, South Dakota. Right now it still looks a bit rough since it's been crushed a bit and there's a bunch of sediment stuck all over the place. The specimen has been pretty well stabilised. So it's not very fragile thankfully enough. Almost all the teeth are present. Only one maxillary tooth is gone and the very tip of the premaxilla is gone. The 2 posterior premax teeth are still there, but the anterior ones are gone. Roughly half of the braincase is also missing on the back of the skull. Otherwise the skull is qui
  8. MacHoffman22

    Fossil ID Plant, Shell?

    Found near Lake Vermillion, SD. It's a very nice impression. Would just like help with an ID please and thank you.
  9. The skull of any dinosaur is composed of many different elements. When I go collecting in an Edmontosaurus bonebed one never finds a skull but the elements that make up one up. Like to use this topic to share the complexity and variety of some of the elements I have collected. I do not have many but will post the ones I have and will continue to add as I prep or find them. Of course if anyone sees any discrepancies please feel to comment and like to thank Olof (LordTrilobite) in the ID of some. Skull still in a jacket not from my usual bonebed but one can see it all together
  10. My wife and I went on a 7500+ mile ramble to break out of our COVID doldrums. Due to the virus we had to change up many of our original plans... which conversely added a number of additional fossil hunting locals as they allowed us to mostly avoid our fellow humans and maintain social distancing by many many miles. As part of our trip preparations my wife sewed us a number of masks, including a whole series of fossil hunting masks for me. Originally we were supposed to stay in Chicago, but we elected to avoid staying in the city, so we only got to do a drive by
  11. Good morning folks. I have a fossil Stylemys nebrascensis(?) turtle from the White River Badlands of South Dakota. I noticed what "appears" to be bite marks on both the top and bottom of the shell after I removed a layer of matrix. I carefully washed it with a medium bristle, plastic brush and Dawn Dishwashing liquid. What are your thoughts on the "marks"?
  12. I was very happy to see that recent publication that finally described the youngest known alvarezsurid Trierarchuncus prairiensis from the Hell Creek Formation. Material is rare but is most commonly overlooked and described as Croc or unknown theropod so knowing what to look for helps. I'm constantly on the lookout for this material and have been for years and have been fortunate to either find it or be able to acquire it over time. I used publications of other Alvarezsauridae like the Asian Mononykus and Canadian Albertonykus to help in the identification of my specimens.
  13. diginupbones

    Unusual tooth or piece of bone?

    Does anyone else see tooth here? Kind of going back-and-forth between tooth and bone on this one.Found in South central South Dakota. @Harry Pristis
  14. Ludwigia

    Jeletzkytes spedini

    Shell preservation complete with mouth aperture.
  15. Hi all! Found this outside of Scenic, South Dakota, USA near Badlands National Park (near a stream bed). I picked it up assuming it was petrified wood, but on closer inspection it looks like it may be something else. The stippled, cell-like pattern of the cross-section reminds me a little of coral. Thanks for your ideas!
  16. xouley

    Fossil bone, or just a rock?

    Hey all! Found this mystery object outside of Scenic, South Dakota, USA, near Badlands National Park. The texture and shape made me suspicious of bone, but it could also just be an oddly shaped rock. Haven't done enough fossil hunting in the area to feel confident either way. Thanks for any insights!
  17. hadrosauridae

    2019 Hell Creek dig trip

    Yes, that title is correct I finally got my video finished and uploaded from last year's trip to South Dakota. This is a trip my son and I started making back in 2009 when he was 8 years old. Its always a fun time, with road trips and tourist trap stops, camping, exploring on top of the fossil hunt. The trip was awesome with us digging at a new quarry wall, lots of great fossils, but my gopro overheated a couple times and ate some of my footage. So I ended up putting this video edit on hold while I tried to decide what direction to take, and then I started prepping, and then I wanted to
  18. I’m driving back to Montana from Kansas this weekend and wanted to stop in South Dakota or eastern Montana to do some quick Dino hunting. Does anyone have any advice for the badlands area or western Montana? Preferably the badlands area. I heard you can just surface hunt in the badlands national park, but wanted to see what you guys had to say. Kind of a broad area. thanks
  19. While playing with my poo (the fossilized version), I noticed this imprint. It is adjacent to a bone fragment. I'm assuming it is the imprint of a piece that broke away from the bone inclusion. It looks a bit unusual/ornamental, but I am hoping it is recognizable to one of you brilliant bone folks. This is from the Oligocene, Brule Formation, South Dakota. @Carl
  20. I have had a bunch of broken bits of Oligocene mammal coprolites sitting in a cup for years. I got them before I had a proper microscope. I decided to pick through another one last night. This one had what I thought could be a rodent incisor. So I started excavating with my X-acto blade. As I uncovered the bone, I realized it was not a tooth. I started noticing these very fine crescent shaped objects (which I unfortunately did not photograph). So I decided to give the poo a little vinegar bath overnight. As I lightly removed an unremarkable bit of fossilized fecal mass this morning, it split a
  21. Jackmandu

    A few finds

    Hello, Here a few odds and ends that I have found recently...the one on the left I call my petrified ham bone for obvious reasons...the other??
  22. Jackmandu

    Any idea??

    I found this along the Missouri River this weekend...looking for some insight on what it might be?? Any guesses?
  23. Hi there, guys. So, I got these from an internet auction. It's the first time I put my hands on this kind of piece. It doesn't "feel" fake or nothing, but I just want to be sure, so I thought I'd better get an expert opinion. What do you think? It's supposed to be Merycoidodon culbertsoni, from the Oligocene of South Dakota Badlands.
  24. hadrosauridae

    Hell Creek turtle prep

    Earlier, I posted a box of some of my older material I found hiding in my garage. Included in that box were a couple of turtle bits including a partial carapace and partial plastron. This bit is a hypoplastron (if my research is correct) of Basilemys Axestemys?. This poor thing was in terrible condition when I opened up the foil pack. Here are the pics as I opened it and the opposite side (disintegrating even worse) after I glued back together. I took 30 minutes of cell phone video of the initial cleaning and then compressed it down. Sorry, theres no
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