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  1. Hey everyone! So I have been having trouble finding more unprepared White River Formation fossils that I could buy. So I thought I might ask my freinds on TFF if they know where I could get some. Thanks! Ps. Please PM me with any information.
  2. fossilhunter21

    Oreodont prep!

    I recieved this skull yesterday and have been working on it whenever I have time. The skull is not super complete, but I still like it. Here are the images from the seller:
  3. Fossilis Willis

    good times in the badlands

    Earlier this month @JD3B and I went a incredible fossil hunting road trip. The title may be a bit misleading, as only one day was actually spent in the badlands. There were however, plenty of good times. We were lucky to have the opportunity to visit a few storied formations, and even luckier to have a couple tff legends to guide us. The first morning was an early one with a 3:00 am wake up. I was at Jacob's (JD3B) by 4:00 and on the road before 5:00. First stop, the Helena, Montana area to visit the world renowned @RJB museum of natural history. We arrived late in the afternoon an
  4. I just got back from an amazing and very fruitful week of fossil collecting on the White River Formation in northeastern Colorado. The White River Formation is a very easy and fun rock unit to collect vertebrate fossils on. The White River Formation was deposited during the very latest Eocene and the early Oligocene, though the faunal diversity in the areas I was collecting on suggest it was laid down during the Orellan North American Land Mammal Age, which centers on around 33 million years ago during the Rupelian age of the Oligocene Epoch. I am very lucky to have a grand uncle
  5. I found this front bit of carnivore jaw while out on my latest fossil collecting trip in the White River Formation of Colorado. Only one tooth is complete, the canine tooth has broken off. It’s too large to be Hesperocyon and the cross section of the canine tooth does not match that of Daphoenus, which I have previously collected material, including a canine tooth, from. That leaves Hyaenodon and the Nimravids. After doing some comparative research with pictures of skulls, I am tentatively leaning towards this being from a Nimravid, as the contours of the jaw line near the socket
  6. I have a few really nice fossils from the White River Formation of northeastern Colorado that I need to prep, and given I am a beginner at fossil prep I would really like to gain some advice and guidance from people with experience do I don’t accidentally damage the fossils. The first fossil is an Oreodont skull. The skull is mostly intact, and I was able to extract it from the field without using any glue or stabilizer or consolidant or anything like that, so this fossil is in its “natural state.” The zygomatic arch and upper tooth row are crumbling, but
  7. Raptor9468

    Metal in fossil rock?

    I found this very hard piece of rock,unlike the rest of the matrix,I dont know what it is.Its dark in color and is completely unbreakable with the needle(as contrast to the oreodont jaw,which i made a few scratches while prepping unfortunately)
  8. Opabinia Blues

    Fossil Tooth Tip Restoration?

    Hello, I have a large canine tooth (~14 cm with the root, ~6.5 cm with just the tooth) from the White River Formation that I collected this summer on privately held land in northeastern Colorado, and though the fossil in its natural state is fantastic as-is I’m thinking about doing a little bit of restoration on the fossil and am looking for some insights. The tooth itself is from either an entelodont or the rhino Metamynodon, with the shape of the tooth and root strongly suggesting the latter to me (feel free to speak out if you have an opinion one way or the other, though I’m not
  9. jamhill

    White River Formation Help

    These are from Nebraska. Since it’s not oreodont, I’m lost. Do people find coprolite in this formation?
  10. Hello, this is a small jaw segment from the White River Formation (Poleslide Member of the Brule) from Weld County, CO. This is one of a few jaw segments I cannot white identify. It does not look like the Leptomeryx jaw segments that I have collected (and indeed is even too small to fit that genus), and the shape of the teeth to me do not look like they belong to an Artiodactyl of any kind, so my best guess based on picture browsing is Ischyromys but I could be very very wrong here so I appreciate any help. Thanks!
  11. Opabinia Blues

    White River Formation Carnivore Canine

    Hello! This is a canine tooth (that has been split in half) that I collected from the White River Formation (I believe Poleslide Member of the Brule) from Weld County, CO. I think it is a carnivore’s canine rather than simply an Oreodont canine just due to its size, but I could be wrong there I suppose. My best guess is Daphoeneus or similar due to its shape, it does not look like Hyaenodon to me, but again, could be totally off there. Pictured is the tooth’s lateral surface, interior (because it was split when I found it) and the “cutting surface.” Thanks!
  12. Hello! This is a small fossil from the White River Formation of Weld County, Colorado. To me it appears to be a set of front incisors rooted to a small piece of the maxilla or mandible. There are no teeth or tooth sockets next to the two that are there, and so this makes them look like the two incisors characteristic of rodents and lagomorphs. Interested if anyone can tell me anything else about them. Two photos are through a stereo dissecting microscope at 20X magnification, the other two, though blurry, should give a sense of scale. The entire fossil is about 9 mm tall, with the
  13. Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. This small bone appears to be
  14. Opabinia Blues

    White River Teeth ID

    Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. The following are two teeth th
  15. Opabinia Blues

    White River Small Partial Vertebra ID

    Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. This is a small partial verteb
  16. Opabinia Blues

    White River Formation Small (toe?) Bones

    Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. These are two small bones that
  17. I've spent the last three days in Wyoming hunting fossils with Paleoprospectors. Monday was spent on the Lance fm, Tuesday on the White River fm and Wednesday was back on the Lance. The first half of Monday was spent prospecting for new sites along a wide open space. The best find happened early on when a younger guy found an Anzu claw, I was not so lucky for a while as I found only a few bone bits in a mostly scarce area. I continued walking along a ridge overlooking the open grassland until I noticed an outcropping of a light brown/orange colored rock. I decide to test my luck and
  18. FossilsandScience

    Unknown Maxilla from Oligocene

    Hey everyone, I was digging in the White River Formation when I found this amazing maxilla of some creature. Through some questioning and conversations with various paleontologists, many people have different opinions of what this is. The responses I’ve had are all different, being Oreodont, Dire Wolf, or a species from the family of Brontotheriidae. The w shaped teeth might suggest Brontotheriidae... What are your guy’s opinions? The maxilla is about 6 inches long.
  19. leftoversalmon

    Fossil Id Confirmation - White River Skull

    This has been in the family for probably 60+ years. I have handled it and seen it countless times, prior to this it has sat in the bottom of a garage cabinet drawer for the longest time, and now I'm bringing it to you! This skull was caked in matrix on one side and mostly exposed on the other before I started working on it (first picture is the exposed side). I think I have the ID correct, I believe it's a Hyracodon skull, I'm looking for confirmation and I'm also curious as to which "sub member" these are found in... Brule, Chadron, or another layer of the White River Formation (I'm new to th
  20. Peat Burns

    "Bingo", Oreodont!

    I took a trip to Nebraska to collect the White River Formations for the very first time this past summer. I had two goals: recover a Stylemys and an Oreodont skull. I found both! I reported on the prep of the Stylemys in an earlier post on the prep sub-forum. When I saw the Oreodont, I yelled "Bingo, Oreodont!". So that's the name I gave the animal. This post will summarize the discovery, preparation, and reconstruction of the specimen. The skull was not complete, and only about 25-30% of the animal was present, so with apologies to the "Palaeo Police" , I decided that this specimen wou
  21. StephLeigh

    Long Bone ID

    Looking for some help with the ID. Mineralized, large and heavy, about 10 lbs. from the white River formation in SD. Distal end of a femur perhaps? Thanks for any help with the ID.
  22. Max fragmento

    White River Jaw

    Looking for help. Found near Lusk Wyoming in the White River Formation. Someones mandible but not sure. Horse ? Rhino? other Thanks for any help.
  23. Max fragmento

    White River Formation Atlas

    Hello People Looking for help with identifying the owner of this Atlas bone found in the White River Formation in Wyoming.
  24. Peat Burns

    From Butte to Beaut

    Thought I'd share a few photos of a tortoise prep I just completed. This is from the white river group of Chadron, NE (circa 33 mya). Here is a series of photos from discovery to excavation to restoration and preparation. The discovery: broken shell (As usual, I forgot to take a true "before photo". I've already probed a bit here). After some digging, it was discovered that this individual is upside-down. Here, the plastron is being revealed.
  25. IonRocks

    Tortoise Prep

    I've just received a massive tortoise prep job, which will be my summer project. It measures nearly 14 inches long, and somewhere around 12 inches wide. At its peak it's six inches tall. This will be quite the project (though after I clean and replace the broken side, it'll be a breeze compared to some other preps) I'm still in the planning proccess of this prep but I'll start by assembling the smalles peices togethor, and work up to larger chunks. I'm glad to actually be on the forum again.
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