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  1. Thought I’d start a thread documenting the preparation of a large Testudo tortoise we collected in Eastern Wyoming this summer. We were guided by expert @jpc I highly recommend hiring him as a guide not only for his knowledge and talent, but because he’s a really good guy and fun to collect with. Here are a couple of shots of the excavation and flipped plaster jacket.
  2. bockryan

    Merycoidodon culbertsoni

    From the album: Fossil Collection: DC Area and Beyond

    Merycoidodon culbertsoni Pennington County, SD White River Formation Oligocene
  3. I just finished the initial prep of a cute little Peobrotherium camel skull we found this summer in the panhandle of Nebraska. It was found upside down with the bottom of the mandibles exposed and in pretty crumbly matrix. It was pretty fractured. It's a beautiful skull and I will do some final restoration at a later date. Thought I'd share with the group. In-progress photos:
  4. Jeffrey P

    Western Adventure Part 6

    One week fossil collecting trip out west, my sixth time in the past six years. Flew into Denver. Rented a car and headed down to Castle Rock where I spent the night at a motel. Next day drove up to Florissant Fossil Quarry. It was Wednesday and they're normally closed during the week in September, but I made special arrangements for a few hours visit. Compared to my two previous visits there, didn't do as well. The other times, I was there for the whole day, this time was just for three hours, and they had had a considerable amount of rain recently and so the shale was more crumbly and more difficult to split. Here are some of my finds. Plants:
  5. Hi all! I love W.R and Oligocene fossils. Both prepping and looking at them. So i thought maybe its time to see what everyone else has collected out there. So let’s see pictures of what you’ve got! Heres a few of mine!
  6. Mioplosus_Lover24

    Whiteriver Jaw/Skull Fragment

    Got this jaw/skull piece at a shop recently that was labeled Hyracodon. I don't think it looks like Hyracodon, but I don't know what it could be. Any ideas?
  7. fossilhunter21

    Archaeotherium Tooth?

    Hello, everyone! So, a little while a ago I was working on digging up a fossil, and found this interesting fossil (tooth?). Right now I have it catalogued as an Archaeotherium tooth. And I was just wondering if it really is an Archaeotherium tooth? Thanks! Cheers and Shalom, -Micah
  8. fossilhunter21

    Some White River Formation Fossils For ID

    Hello everyone! Earlier this year, in August, I went fossil hunting in the White River Formation. This jaw was one of the first specimens I found. Unfortunately when I found it, it was actually in better shape... When I found it it had obviously been out in the weather for quite some time, and so it was kind of fragile. I was not thinking, and just took it out of the ground, hoping I could put most of the pieces together later. I know it was a dumb decision, and I won't do it again (hopefully...). Along the way, I lost some parts, and so now it is not near as complete as it was. I am thinking it looks like Archaeotherium, but just thought I would ask for some other opinions. I don't know if it is possible to ID it down to species, because it is not super complete, but I would at least like to know what genus it is from. Specimen Length: About 3 Inches Location Where Specimen Was Found: Crawford, NE More specimens to come! Thanks, -Micah
  9. Hi everyone, I have just purchased an Oreodont skull. I have no experience with these. I assume this is genuine, but I don't know much about what they are supposed to look like, so I'm just hoping for some expertise from people who know more than I do. This one seems to have a lot of matrix that needs to be removed, but I certainly wouldn't want to mess anything up with it being unskilled with that kind of work. It looks like at least part of the bottom jaw is still in the matrix, you can see a large bone sticking out in a couple of places. What do you guys think?
  10. ParkerPaleo

    White River Prep - Rodent

    I was inspired by another WR post and thought I'd share what I was working on today. I had a small rock with a sliver of rostrum showing (white bone). Poked at it a bit with a microjack and it just kept going. All scope work so far. Was hoping for a cranium but no such luck. No nasals either. Now I'm trying to decide how it should display and how I was to expose the cheek teeth. Here it is sitting flat. And I'm thinking I will stand it on edge for display, like so. Will have to remove the matrix on top and prep out the cheek teeth to identify. My initial guess is Paradjidaumo though based on the short incisors and size.
  11. I have 2 white river mammal skulls that I am hoping some can assist with identifying. They both measure a little over 4 centimeters. one has been prepped out of the matrix preserving a relatively complete dentary (including the bases of both canines). The second is still covered in matrix. I am fairly certain that the one that is prepped is likely a rabbit.
  12. From the album: Fossilhunter21's collection

    Genus: Merycoidon Location: Our Heritage Guest Ranch, Crawford, NE Date of Discovery: 8/12/22 Image of Meryocoidodon culbertsoni Skeleton:
  13. From the album: Fossilhunter21's collection

    Genus: Merycoidon Location: Our Heritage Guest Ranch, Crawford, NE Date of Discovery: 8/12/22 Image of Merycoidodon cubertsoni Skeleton:
  14. LordTrilobite

    White River Skull Prep

    I recently got this skull as a fun prep project. I bought it as a Hyaenodon skull from North Western Nebraska. But I quickly noticed that it was likely something else. I don't have a whole lot of experience with carnivorans but I think it might be a nimravid based on the number and placement of the teeth. Hoplophoneus or Dinictis maybe? It's missing its fangs and all the front teeth but otherwise it's in general good shape. I've already removed a whole lot of material. And it's starting to look like something. There is very little crushing and the bone is quite well preserved. But there is a break in the middle of the skull. So I fear some bone might not be in the best shape under the matrix there. Fossil as arrived with a bunch of matrix on it. Especially the left side had a lot of material on it and seems a little better preserved than the right side. After the first big prep session. And the most recent state with again a whole lot of material removed. It seems that sadly the jugal isn't as intact as I had hoped.
  15. fossilhunter21

    Oreodont skull #2

    From the album: Fossilhunter21's collection

    Species: Merycoidodon sp. Location: Crawford, NE Date of discovery: 8/12/22
  16. fossilhunter21

    Oreodont skull #2

    From the album: Fossilhunter21's collection

    Species: Merycoidodon sp. Location: Crawford, NE Date of discovery: 8/12/22
  17. fossilhunter21

    Oreodont skull #2

    From the album: Fossilhunter21's collection

    Species: Merycoidodon sp. Location: Crawford, NE Date of discovery: 8/12/22
  18. Good evening to my fellow fossil lovers! This report has been on hold for a while, hovering near the top of my paleo-to do list. But to be honest, I haven't been on the forum as much these last few months and I've just sort of kicked the can down the road, pushing it off. Well here we are in August 2022 and I'm a whole year and some change removed from this excursion, but I say better late than never. With that out of the way lets jump into this adventure! I hope you're ready for... The Roadtrip Through Time: Colorado Part I: Pierre Shale In the winter of 2021 I had the beginning of an idea... Something a bit ambitious, but within the realm of possibility. I wanted to organize a road trip which would bookend my already scheduled excursion with PaleoProspectors to hunt for dinosaurs in Montana during the last week of July. I present this idea to Quincy @Opabinia Blues, a friend I had made on my trip to Wyoming in the summer of 2020 and a native of Colorado, who would also be hunting the same week in the Hell Creek. My idea was to fly into Denver to meet with him, visit several spots throughout the state and eventually make our way north into Montana. Joining me on the trip from New Hampshire would be my best friend of over a decade, Michael @Mickeyb06. With a week of hunting the Lance under his belt from the year before, I knew his eye would be better, resulting in him finding more this time around. Several months of creating routes, researching accessible sites and forming itineraries led us all the way to mid July, when Michael and I would fly out of Boston Logan to Denver. By the time we had landed and met Quincy it was already mid afternoon. Quincy presented us with two options, head home for the evening or push on to one of the fossil sites. Ready to explore, I chose the latter. We decided to stick to our plans and head west into the mountains. The first site on our tour would be in Kremmling to hunt exposures of the late Cretaceous Pierre Shale. While I could have chosen this area or the Baculite Mesa, I decided I would prefer the mountainous scenery. Of particular note was the Kremmling Cretaceous Ammonite Locality, a protected zone where collecting was prohibited. Within this zone were dozens of calcareous sandstone concretions, many of which preserved the impressions of the giant ammonite Placenticeras and other marine invertebrates. This environment is interpreted as storm deposits of near-coastal sand bars, with the accumulation of ammonites coming as a result of their mating rituals, subsequent mass death and eventual deposition (similar to what was featured in Episode 1 of Prehistoric Planet!). After rain, water collects within these great molds, creating natural bird baths, a colloquial nickname for ammonites of this caliber. A view of the adjacent ridgeline and the mountains which surrounded us. Note the hazy sky due to wildfires elsewhere in the state. Candid shot of Michael. The winding trails. An assortment of smaller invertebrate fossils we found in the first few minutes, clusters of inoceramid bivalves and partial ammonites. Information plaque which included a beautiful illustration by Ray Troll. The first birdbath ammonite we found, with a large section of Baculite included. Another birdbath, GoPro for scale. After checking out the site for a while, we ventured outside of the protected zone onto surrounding BLM land to hunt our own non-vertebrate fossils. A beautiful piece of petrified wood. A partial cast of an inoceramid bivalve. One of my only pieces of ammonite that afternoon, a small segment of baculite. My last find of the day, a big chunk of Cretaceous sea bed, covered by the shell impressions of its long dead inhabitants (small inoceramids and a baculite). A beautiful sunset through a hazing Rocky Mountain sky. Stay tuned for more, because there is plenty to come!
  19. fossilhunter21

    Fossil hunting trip!

    Me and my family just finished up our first fossil hunt! We are still at the ranch, but are leaving in the morning. We all are sad to have to leave the ranch. We all had fun exploring and doing different thimgs, (though some of us a lot less than others) and really enjoyed talking with, Rick and, Jean. They are really nice people. And it is a really nice place to stay. Unfortunately the guide, and everyone else cancled, so we were fossil hunting alone. WE left home at 2 AM on saturday, and arrived in Omaha, NE around 11 AM. We stopped in Omaha to visit with some family, and stayed overnight at an airbnb. The scenery is pretty cool where we stayed! We were very glad that the airbnb was near the top of the hill, instead of at the bottom. Sunday we left the airbnb around 6 AM, and stopped for lunch at a park sometime around 11:00? I don't know, never been good with rembering stuff like that. Here is a photo of the river running through the park we we visited for a lunch break: After lunch we quickly hit the road again. And FINALLY at 3 in the afternoon we arrived! It is truly amazing out here. Indiana is extremely boring compared to the western part of Nebraska! We spent some time enjoying the sunset, and stars before finally calling it a night. You can see so much more stuff in the sky at night here than Indiana. That is to be expected, as we are not really close to any big towns. Monday we went to Crawford, and got some groceries. The grocery stores are very different than the ones in Indiana. Then we visited the University of Nebraska State Museum's Trailside Museum of Natural History. They have some pretty interesting fossils. And it was not very expensive to get in. We then wondered around Fort Robinson, before taking the Smiley Canyon Scenic Drive. It is a scenic drive, where you are supposed to be able to see Bison. And we did see some Bison, but they were too far away to get good pictures, Unfortunately. Here are some pictures I took along the scenic drive: We then went to a rock shop, and I got what appears to be a pretty complete unprepared oreodont skull. I am looking forward to taking a better look at it when I get home, but for now it is all wrapped up. We then went back to the ranch, and had dinner, and went to sleep. TUESDAY we got up early, and, Jean took us out to a part the badlands she owns, and kind of showed us around. We then went fossil hunting on our own, and I found an oreodont jaw at almost the very second that we stopped where we were going to hunt. I was very excited! Then for a while all we were finding were snails and bone pieces and things like that. AND THEN I found a mostly complete tortoise! A little after I had found it we went back to the ranch and rested and then came back out in the evening. Unfortunately I did not dig deep enough, so I left some of the tortoise in the hole, and the supplies we had were not good enough, so the plaster jacket did almost nothing, and the tortoise sorta fell apart when we got back... My chest started to hurt right after we went fossil hunting for the first time on tuesday. After we came back from fossil hunting in the evening my chest hurt VERY badly. I would rather be sick than have that kind of pain. If I moved it made it worse, and laying down made it worse. Eventually I was able to lay down, and get some sleep, but it still hurt. I know why I was in so much pain. It is because of my pectus evacatum. It makes one side of my chest sink in, and if my heart beats too hard, then it starts to hurt. But usually it just hurts for a few seconds On wednesday we decided to not go fossil hunting, as my body obviously needed a break. We went to The Mammoth Site, and looked around at all the cool stuff they had. It is a pretty interesting place. We then went to JH Keith Cascade Falls Picnic Area, and got into the water, but it was kind of chilly, so I did not go swimming. We then stopped at a food store that looked interesting, and got some goodies. Then we went to Walmart to get some supplies, and food. We then headed back to the ranch to get some more rest. Thursday, Jean took us out to a new location, and again, almost as soon as we stopped where we wanted to hunt, I found something, but this time it was a skull. It is fairly weathered, but it has both uppers and lowers. Then a little while after I found that skull, I found another skull, this one being not as weathered, but I don't know how much is there. I then decided to work plaster jacketing the first skull, and got it out of the ground. But there was not enough time, or plaster to plaster jacket the second skull. So we went back to the ranch, and then went to a hardware store, and Dollar General, to get some more supplies. Unfortunately DG did not have what I wanted, but it was not something I really needed. We then went back to the ranch, and were too tired to do any more fossil hunting that day. Friday we headed out early again, and I worked on the second skull, and while working on that, I explored some more of the area and discovered a couple more skulls, though none of them are in amazing shape. I unfortunately had nothing with me to mark the best one. I tried to mark it with some rocks, but unfortunately I was not able to refind it when I had all my tools. I was able to finish up the second skull, jacket a really worn down one with duct tape and foil. I also was able to remove an oreodont lower jaw, maybe part of the skull cap, and a bone or two, they appear to be from the same specimen. Again we were too tired to go out in the evening, so we rested. SATURDAY (today) we went rock hunting, not really something I am interested in, but the rest were interested, and they found some interesting rocks. I did not really collect any rocks. I found a bullet though. I have no clue what it came from or how old it is, but to me it looks modern. We then headed back to the ranch to have lunch, and get everything ready, and packed up, as we are leaving in the morning Sorry that I took so few photos! I just am not great with remembering to take them. I need to work on that. I will try to post some pics of my finds soon! Thanks for looking! -Micah
  20. I received this little partially prepped oreodont skull from an old paleontologist I've connected with and I noticed these two spots on it. Are they just conveniently placed holes? Or are they a bite mark? And if so, from what?
  21. PaleoNoel

    White River Carnivoran Jaw Section

    Hello again. I wanted to share this jaw section I found in Wyoming's White River back in July 2020. My initial thoughts were that it belonged to the primitive canid Hesperocyon, which in my experience has been the most abundant carnivore in those badlands, however, it doesn't quite match the other material I found which I'm confident is dog. While scrolling through the forum I saw some similarities to a jaw section labelled as Daphoenus by @Nimravis on the thread below: The fossil itself is 3 cm long and ~2 cm from the tip of the tooth to the base of the jaw. I'd be interested to see some opinions. @jpc @ParkerPaleo @siteseer
  22. PaleoNoel

    Entelodont Incisor?

    Hi everyone! I wanted to get some opinions on this tooth I found in Wyoming's White River formation back in 2020. While I was initially unsure of what it could be, over the last few years I have been of the belief that it was a somewhat worn incisor from an entelodont (Archaeotherium mortoni). The deeply rooted tooth is ~4 cm long and ~1.5 cm at its widest point. Any input would be appreciated. @jpc @siteseer @ParkerPaleo
  23. Nanotyrannus35

    Some Oreodont Bones

    I had recently received a couple unprepped oreodont limb bones from @snolly50 and have started prepping them. Here's a pic of my workstation There's been a lot of repair in these bones that I had to do. The bone on the left I'm pretty sure is a humerus. Here's some more pictures of that one Then there's this other bone that I'm working on repairing and prepping, I think this might be a femur? Then I have this piece that looks like the end of the tibia and fibula with some tarsals. And last I have this unidentified limb bone end, about 3 inches long I'm doing all my prep work right now with a pin vice and it's turning out pretty well.
  24. PaleoNoel

    White River fm. Mini Claw

    Hi everyone! I found this claw while anthill hunting on the White River formation of northeastern Colorado. It's about 6 mm in length and 4 mm tall. Honestly I'm not certain that it's a fossil, but if it is I'm really excited to have found it. My first guess is that it's a small bird, but it could very well be mammalian or reptilian. Any input is appreciated.
  25. Hey everybody! I wanted to make a thread sharing with you some of the smaller fossils in my collection, many of which I've photographed using my digital microscope. Some of these I've found in the field at microsites or channel deposits, while others I've found at home searching through matrix. I hope you enjoy! Our journey begins in Wyoming's Lance formation: A Pectinodon tooth my dad found in 2017. A tooth that was identified by other forum members as potentially Avisaurus, also found in 2017. A tooth I initially called Paronychodon, although the small & worn denticles may suggest otherwise. Found in 2020. A tooth which was once the smallest in my collection at around 3 mm., potentially Acheroraptor but currently is indeterminate. Found in 2020. Probably my smallest crocodilian osteoderm in good shape, found in 2019. A tiny dermal denticle, potentially from Myledaphus. Found in 2020. The smallest mammal tooth in my collection, an itty bitty multituberculate I found at home working on conglomerate matrix in 2019. A nodosaur tooth (Denversaurus) found in 2020. A collection of small fish mouth plates (cf. Cyclurus) from 2020. A salamander premaxilla (cf. Scapherpeton) found in 2020. A Thescelosaurus premax tooth from 2020. A view of some of the Lance fm. anthill matrix I brought home to search, with a piece of fish mouth plate in the center
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