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  1. I found this tooth on private property in the Lance Formation, and I wanted to know what y’all think. Dr. Bakker told me ceratopsian (Lepto if I remember correctly). He said it was one of the teeth oriented toward the front of the mouth. I’m inclined to believe him, but has anyone else seen this before?
  2. Hello all- It is time again to announce to the masses another exciting Tate Conference. Happening June 7-9 at the Tate Museum in Casper, Wyoming, USA. We have 11 speakers plus a Keynote over dinner lined up to talk about the Morrison Fm and its beasts on Saturday the 8th, and a field trip to the local Jurassic rocks south of Casper on Friday and a second field trip to the historic Como Bluff on Sunday. More info can be found here: https://www.caspercollege.edu/tate-geological-museum/events/conference/ Hope to see a few Forum members in Casper for this. -jpc
  3. My family and I went on a trip to Yellowstone, the Green River Formation and the Blue Forest in Wyoming. Although my son found by far the best Blue Forest specimen, I thought smaller specimens were also of interest. The attached image illustrates a common theme of the petrified wood specimens. Typically, the outer bark results in a fluffy white deposit of calcium carbonate. The inner bark is often composed of what the locals refer to as "blue opal" (likely chalcedony), and then the center part appears to be silicified wood. Some specimens had iron oxides as well. I highly recommend a trip to the Blue Forest. It is very out of the way and directions are hard to find. The directions we found at one point stated that we should turn left at the gravel road with a rusty barrel at the intersection. We traveled down the gravel road for many miles until we spotted dig sites. It is very remote and you would want to make sure you vehicle is in good condition with plenty of gas and that you have plenty of water.
  4. oilshale

    Hypsiprisca sp.

    Juvenile Priscacara can be easily distinguished from juvenile Hypsacantha by their distinctly rounder body shape. Grande distinguishes two forms of Hypsiprisca: Hypsiprisca hypsacantha (originally described by Cope in 1886 under the name Priscacara hypsacantha) and a second yet undescribed, closely related form Hypsiprisca sp. H. sp. is more common than H. hypsacantha: H. sp. are mostly very small individuals less than 60mm long. Quotation L. Grande (2013): "The second species that remains undescribed differs from H. hypsacantha in being more slender-bodied and having a more convex posterior tail fin margin (H. hypsacantha has a very slightly forked tail margin)." References: Whitlock, J. (2010). Phylogenetic relationships of the Eocene percomorph fishes †Priscacara and †Mioplosus Journal of Vertebrate Paleontology Volume 30 – Issue 4, pages 1037-1048. Grande, L. T. (2013). The Lost World of Fossil Lake: Snapshots from Deep Time. University of Chicago Press. ISBN: 13: 978-0-226-92296-6.
  5. oilshale

    Priscarara serrata Cope, 1877 juvenile

    A juvenile Prisacara serrata (the length is about 2.5 cm), but already showing the typical roundish body proportions of an adult Priscacara and differing from Hypsiprisca sp. Distinguishing characters for Priscacara serrata and Cockerellites liops (old name Priscacara liops): References: Cope. E. D. (1877). A contribution to the knowledge of the ichthyological fauna of the Green River shales. Bulletin of the United States Geological and Geographical Survey 3(4):807-819 WHITLOCK, J. A. (2010). PHYLOGENETIC RELATIONSHIPS OF THE EOCENE PERCOMORPH FISHES †PRISCACARA AND †MIOPLOSUS. Journal of Vertebrate Paleontology, 30(4), 1037–1048. http://www.jstor.org/stable/40864383. Grande, L. T (2013) The Lost World of Fossil Lake: Snapshots from Deep Time. University of Chicago Press. ISBN: 13: 978-0-226-92296-6.
  6. Greetings! I'm Dok Deino, a Paleontology student who is going into fossil prep. Fortunately, I was able to negotiate a volunteer position with my college advisor. My job: to prepare some specimens that have been in the collection for about 60 years. And one of them is pretty big. It's an unidentified sauropod femur, approximately 1.6-1.8 meters in length, weighing at least 70 kg. Genus unknown, but it is most likely from the Morrison formation. I believe the attached photo is a caudal view of the femur, if anyone wants to take a crack at ID-ing it. My professor and I are currently brainstorming our method of attack, but since neither of us are preparators (yet, in my case), I wanted to reach out to people who are. There's another specimen as well, but we have no idea what it might be. It's a 1.2x.2x.5 meter block of plaster, basically. All we know about the specimen is that the people who retrieved it only jacketed Dinosaur remains. So, if anyone out there has some advice, please respond! Whether for these specimens specifically, or just in general. This is an interesting field that I am very excited to break into! Thank you for reading, -Dok
  7. I saw this Allosaurus claw for sale today . I dont know how a real Allosaurus claw looks like , so I wanted to ask If its real or fake . It shows some bone texture at the back , but it looks a bit weird (to me). It was found in Wyoming, where exactly wasnt said . Its from the jurassic period . 11 cm in length .
  8. This is a re-post of a topic I started late this last summer, but got lost during the August forum migration. Late in July I took a trip with a few friends out to the American Fossil Quarry and Fossil Butte National Monument to hunt for fossils out of the lower Eocene Green River Formation. The Green River Formation is a lagerstatte which is perhaps the best site in the world for articulated fossil fish, many of which also display varying degrees of soft tissue preservation. Fossils from this locality are mined commercially and are ubiquitous on the fossil market. Living in Denver, the Green River Formation is only a few hours away by car and I've always wanted to plan a trip out there to collect it, which is very easy to do and fairly cost-effective thanks to numerous pay-to-dig quarries where you get to keep essentially everything you find. I decided to plan a dig at American Fossil Quarry, which is one of the more popular quarries. I managed to convince two of my friends to come with me, and we spent a day and a half (12 hours total) at the quarry while camping at the nearby Lake Viva Naughton. It was my two friends' first times ever hunting for fossils, and they both report that their expectations were far exceeded at the quarry! There's a very good chance this trip was the start of the making of two new fossil fanatics. We had a blast out in the quarry, with the thrill of discovery doing plenty to stave off the oppressive sun and desiccating dust. We also made sure to visit some of the fossil shops located in Kemmerer and spent some time at the museum in the visitor's center of Fossil Butte National Monument, which is fantastically well put together and was so awesome to see. Each of us found plenty of treasures, including lots of Knightia and Diplomystus fish as well as coprolites (fish, stingray, and turtle), scales, occasional plant material, and even a few rarer fish. Here's some pictures from our adventure: Myself posing with a very nicely preserved Knightia eocena. My two friends hard at work splitting shale for ancient treasures. A few of my day one finds on my shelf. A very nice partial Priscacara found by one of my friends. A small stingray with associated Knightia found by a different participant the first day we were there. A mostly complete Amphiplaga brachyptera (one of the rarer fish) found by me, associated with a Knighta alta. Only the tail and part of the dorsal fin is missing, the rest of the fish is intact! Easily my prettiest fish: An absolutely perfect Diplomystus dentatus found by me the second day. One of the displays at the visitor's center of Fossil Butte National Monument. Cheers, and thanks for reading!
  9. TankerSteve

    Fossils from rock shop

  10. sonofthree

    Please help identify my bumps.

    I am a complete novice. I have searched for fossils as a hobby but have never found anything like this. I found this near Lovell, Wyoming, near the base of the Big Horn mountains. It measures approximately 5cm x 5cm. Thanks for any help.
  11. 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.
  12. Putting a shout-out here to see if any members have any nice specimens of pet wood from the Blue Forest locality in SW Wyoming. A researcher in the paleobotany department of the Florida Museum (FLMNH) is doing research on the species that are found in this locality. She has already identified several specimens as palm and (interestingly) a species in the avocado family. She is presently searching for additional specimens to possibly widen the floral diversity of this site. https://www.mindat.org/loc-216297.html I gave away virtually all of my specimens that I collected back in 2009 and my remaining pieces are presently on display in Powell Hall (the public display museum) on campus (see below). If any members out there have some nice pieces from this locality that they might wish to offer up for research purposes I'd appreciate hearing from you. If you can PM me with some nice (higher resolution) clear images of your specimens I'll forward those on to the researcher to see if they appear to be useful for her research. Thanks in advance. Cheers. -Ken
  13. Found this for sale somewhere, they are advertising it as a gar scale, but I don't think it is, although I could definitely be wrong. My first thought was maybe a scute of a crocodile, but I think that is also not it. Any ideas/ Thank you so much everyone in advance!
  14. austinh

    Wyoming mystery stow away fossil

    I found this rock on a recent trip to wyoming and took it home based on its aesthetic characteristics, I was looking for fossils on the trip, but in this case that wasn't the goal. I was cleaning the rock up today and noticed these very fossil like impressions in it, one round with a regular linear texture around a raised center and another regular lines. These seem too perfect and too regular to be geological, does anyone have any ideas? Wish I could tell where the rock came from, but since I wasn't expecting fossils out of it I did not note the location or formation I found it in. Any help is appreciated. Thanks. First two the suspected fossils can be seen near the center of the rock, third is just a picture of the general rock if that helps identify things. Thanks.
  15. Hello, I'm from Austria (Europe). And this is my first time here on the forum. When I was 10 years old, in addition to the dozens of bones, I also found a cave bear canine tooth (tip with end of enamel: almost 4cm with root 6cm) in the dragons cave near Mixnitz in Styria. I never made such a great find again: that was the end of my short excavation career. In the last years I've only bought small things: trilobites, amonites and this week I stumbled upon the fish. I bought the petrified fish as a gift for a special occasion. Indicated from the dealer: fossilized fish (Pricacara liops), Green River, Wyoiming, USA, Tertiary, Eocene, approximately 42 million years. Size Fossil: 40.5 cm (I measured the body axis, not the matrix). Matrix (rock slab): 45,5 cm (length, upper longer edge) x 28,5 cm (average) At first Priscacara liops seems wrong to me because it is smaller. In't it? Priscacara serrata grows to about 37 cm tall?! And unfortunately I don't know exactly how big the Priscacara hypacanthus will get. BTW: In my opinion the body shape doesn't fit either. Question 1: Which fish is this actually? Question 2: It seems to me that the beige matrix (plate) was helped with paint. Please see the photos with the arrows. In one place, paint or a piece of rock seems to have chipped off (as long as it was just beautified), that's not so tragic for me. Question 3: Is the fish a real fossil, in your opinion? So that you can get an idea, I have put up unedited photos (except for the arrows + text). I also photographed the back of the matrix (stone slab) and also the edge; also a few detailed shots. Thank you in advance. Greetings, Rod
  16. My son (7 years old) and I are traveling to Wyoming late September to see the sights and hunt for fossils. We plan to hit up the green river formation for sure, I have looked into Fossil Safari as a possible place to try our luck. Does anyone have any suggestions as to places where we could legally collect fossils, in that area or elsewhere? My son being 7 does limit me in terms of stamina and focus, but he is motivated and equally hooked. I know people are coy with their spots and collecting bone is largely off the table, but any thing we should be sure to catch would be greatly appreciated, even museums, lunch or any such tourism thing. We have a rent car so we are mobile, plan to hit mostly Western Wyoming and then South through back to Casper. Just want to make the most of the experience. Thanks.
  17. Tambam

    Skull Identification

    Hello, friends! Just joined. We have had this fossil for years. Husband can't remember, but he thinks he found it in Wyoming as a young boy. We have always wondered what it was. Thank you in advance for any help! Cool site!!!
  18. Hi guys, I made this post about this small theropod tooth from the lance creek formation, Wyoming, USA. I bought it years ago and it was sold to me as belonging to a dromaeosaurid. It doesn't seem to me that it corresponds to any "raptor", but to a baby of Tyrannosaurus rex/Nanotyrannus lacensis. What do you say? Thanks in advance! Ps: the tooth is 1,2 cm/0.47 inch long and 0,6 cm/0.24 inch wide.
  19. I wasn’t even fossil hunting, I was on a horseback trip through Wyoming and came across this beautiful piece of petrified wood. I saw a lot of other cool chunks of it around, but only kept this one. I was around 10,000 feet in the mountains in a valley, about 50 miles from the nearest road or sign of civilization when I found it. The area I was in is visited by maybe 20 people a year, or less. I love fossils and have quite a few but I’m no expert, and I just wanted to share this cool find with some more ppl to appreciate. Any ideas about its age or price estimates (i won’t sell it, just curious) would be cool, but I don’t need that!
  20. Found about 20 miles away from Moran, WY. Any idea what these are?
  21. Matt g kinzelman

    Unidentified

    Someone who collects rocks had this among some rocks from Wyoming. When washed of mud striations became visible are there any guess as to what it may represent? ? piece of clamshell? I don’t see dentin/. Enamel pattern of tooth. Coral?
  22. Fossil-Hound

    Kemmerer Wyoming

    American Fossil Quarry on Saturday was fun. Found my first stingray. Super happy. Another patron found another ray fairly close to me an hour later. Very rare to find two in one day.
  23. My 1st attempt at asking advice got locked because I mentioned specific sites. Sorry! (Mods please delete that one if possible). But I'm not even looking for advice about WHERE to go. That's already decided. We are going to a trilobite quarry in Utah and a Green River Formation site in Wyoming. We've never done this before and are driving a LONG way, so I want to be as prepared as possible. So if anyone has any helpful advice for first-timers so we can make the most of our one chance, we'd love to hear it. Thanks in advance!
  24. My wife and I will be making our first trip out to Utah (U-dig, trilobites) and Wyoming (American Fossil, GRF fish, etc.) later this month and are very excited to finally experience these places. If anyone has any advice for first-timers we'd love to hear it. Thanks in advance!
  25. Yesterday I was invited from the "Geologengruppe Ostalb e.v." (Geo-Gruppe Ostalb e.V. (geo-ostalb.de)) to give a lesson about the fantastic Green River Formation. We visited the fossil butte monument some years ago and had the opportunity to dig there a day with our friend Adam Lindgren. As I had a lot of great pics from the fossils and landscape, but not from perfect prep, Kris Howe (@ptychodus64) supported me with pics from the preparation of his fantastic Annaeavis. Thanks, Kris, the pics impressed the visitors, was a great evening! Impression of the Museum (Limesmuseum Aalen) Group leader and former director, Ulrich Sauerborn, and the author Green River! Some impressed visitors some pics from his prep, I am always impressed about this fantastic work! (sorry for the not-perfect pics, baaaaad light) thanks
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