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Found 151 results

  1. Well, I’m finally getting to dig into my truckload of fossils from my Wyoming trip with @RJB so it’s my turn to open up a prep thread. I spent a couple hours today poking around to find the perfect fish to start with. The 18” layer never disappoints. This good sized Diplomystus has 2 Knightia on top of it. I’m going to try to save both but I’m concerned that the right hand one is covering most of the Diplo’s skull. If that’s the case, the little guy will have to go! This is after about 90 minutes of scribe work.
  2. Fossils from the new guy

    I'm brand new to Fossil Forum, and can't afford the big splashy wall display fossils, so my "collection" is modest, but it's a start. I have three of these fern plates from St. Clair, PA, and two diplomystus fish fossils from the Green River formation in Wyoming.
  3. Hell Creek to Green River trip

    My son and I just got home last night from a 2 week fossil hunting trip. We loaded up the trailer and made our way up north to the Hell Creek formation in South Dakota. This was the 11th year since we started digging with Walter Stein of PaleoAdventures. We spent 4 days in the field at his Tooth Draw quarry. This started out pretty slow for us, with an Edmontosaurus neural arch with processes but was missing the centrum. My son found an unknown plate. Highly fractured but it looks to have 3 original sides. The underside is still encased in matrix so we wont know more until its prepped out while might take a while. The finds got better in last 2 days. We found a few big BOBs, lots of Trike spitter teeth, and then a nice limb bone, possibly from a crocodile. The last day gave up a wonderful complete Thescelosaurus vert with all processes. It may not be clear in the pic, but its all there in the matrix. Then came a Nanotyrannus tooth, a partial mammal jaw, a possible piece of turtle plastrom and a final tooth with could be nano or could be raptor. It will have to be cleaned to examine it better for a good ID. Sorry, I dont have a field pic of that one. The weather didnt get better though. Our last day it in the mid 90s, zero clouds and 40mph winds funneling down the draw and sandblasting us all day long. But with great finds, you couldnt pry us out of there.
  4. Feather?

    Hi, I’m considering buying this, and was wondering if this is a feather, it’s not listed as a feather but I’m curious if it is.
  5. Green River fish ID

    I found this a couple of summers ago at the American Quarry in Kemmerer. Just cleaned it up. It doesn’t look exactly like a Knightia. Might it be something else?
  6. Hello Everyone, Newbie here from the Emerald Isle. I finally pulled the trigger and purchased my first fossil—a Green River Diplomystus dentatus with Knightia eocaena. The seller is well-known and highly regarded on this forum so I’m not necessarily concerned with the authenticity, but I am really keen to hear people’s opinions on this specimen. My apologies if this is the wrong place to post. Thanks, Robert
  7. Went up to Douglas Pass, Colorado today for a hike with my wife. I have always hunted for fossils at the Radar Dome location. Today we decided to scout around for another location to collect. Hiked up a very steep hill to a shale exposure and found this larvae after only 1 minute of looking. We had not come prepared today to collect anything. Will probably head back up next weekend. The larvae is approx 2.25 cm across. There are also some parts of other larvae on the piece.
  8. Fish paintings

    I'm working on some new fossil fish paintings and thought I'd share them here. I'm trying to work my way through the Green River formation fish first, though I'm sure I won't paint them all. I've only done two so far, but I'll add more as I paint them. The quality will vary, I'm sure. Here's my take on a Priscacara. and of course a Knightia: I've started on a diplomystus, and will post that soon. Thanks for looking. Oh, for those interested, I'm using gouache paints, similar to watercolor but more opaque.
  9. Green River fish - what do we have here?

    I got this fish with some others in a trade deal the other day; I was supposed to get a mixed box of Diplomystus and Knightia, but this guy stood out for me. Doesn't look like either, and seems a bit too big for Amphiplaga. Maybe juvenile Mioplosus? Anybody? Is there another photo that can help? Thanks for looking!
  10. Fossil fish wall

    Since I have had more time to get stuff done due to Corona virus downtime I finally put together a fossil fish wall. I collected the specimens a few years ago in Wyoming. Thought I would share
  11. Is it paint or natural?Priscacara liops Green River Formation?thanks
  12. Green River Split layer Nymph?

    Final got to a Green River fossil that once exposed looks very much like a insect body or insect nymph. Would anybody out there be able to point me in the right direction as to what it actually is?
  13. fish are freakin hard to prep!

    I am always eager to try new things and develop or expand my skills. I've been putting in a lot of hours doing final prep on Hell Creek bone, and frankly, thats easy compared to these fish! I recently bought some un-prepped green river slabs from Ptychodus04. Since the weather and pandemic have put a halt to most things I began trying my hand at prepping these. Such a difference from working big dino bones! The fish bones are like fossilized hairs and unbelievably fragile. The matrix (on most of these) is extremely soft which makes clearing easy with a scribe, but also easy to blow it out. Using a soda blaster is a little more gentle, but still easy to blow out the fossil as soon as the matrix is gone. The bone details are so fine, I can understand how having a stereo microscope (along with a micro-jack scribe) would make this type of prep a lot easier. I think I did OK on my first fish. I'm scared to try and clear the spine any more because the bones are so thin and fragile. Then the second fish is in a harder matrix (and deep), but from what I've cleared so far, it seems to be a in a lot better condition. I'm afraid I may wear out my scribe exposing it though, LOL.
  14. Heliobatis radians MARSH, 1877

    From the album Vertebrates

    Heliobatis radians MARSH, 1877 Eocene Ypresian Green River Formation Kemmerer Warfield Quarry Wyoming USA Length 45cm / 18"
  15. Knightia - both?

    Good evening folks. I have two fish, both listed as Knightia and both from Farson Wyoming. They look similar but they don't look like the same species to me, am I wrong? These are 10 and 11 year old purchases with the first being dug in the 60's from "near Farson" and the second stating it is from the Green River Formation, Farson.
  16. Green River Fish Amia Head???

    Hello everyone, I'm looking for a second opinion on this piece, a fish head from the green river fauna, while I believe it maybe Amia due to comparisons I'm not to confident, any help/guidance is and will be appreciated.
  17. I just received confirmation from Professor Steven R. Manchester, Curator of Paleobotany Florida Museum of Natural History, that I do in fact have Bonanzacarpum sprungerorum! Special thanks to doushantuo's post (additions to paleocarpological knowledge:The Eocene) that restarted my identification quest and Paleoflor for encouraging me to pursue it. And TTF for giving me the venue to request identification assistance.
  18. Hiodon falcatus?

    I found this Green River fish at the American Fossil quarry about 4 years ago. I think it could be a Hiodon falcatus, thoughts? Thanks for the help!
  19. Fossil Fish ID Help

    The seller labels this as a diplomystus from green river but I don't think it is. The fins look wrong to me. What do you guys think?
  20. Amphiplaga brachyptera?

    I found this Green River fish this fall while at the Warfield quarry. It is too different from a Knightia and the best match I could find is Amphiplaga brachyptera. Thoughts?
  21. What do you all thing about this fossil insect? Real? Fake? Real with paint? It looks like Green River matrix, but I don't know. - edited to add 2 more pics--
  22. Good morning all. I have a fossil that was identified as "plant cross section(?) from Green river". I'm wondering if it's actually a fruit seed pod similar to Bonanzacarpum spungerorum species. It has similar form and shape. I applied a lite coat of easily removeable wax for protection.
  23. bo5_Manchester.pdf FOSSIL IMPRINT • vol. 75 • 2019 • no. 2 • pp. 281–288 BONANZACARPUM SPRUNGERORUM SP. NOV. – A BIZARRE FRUIT FROM THE EOCENE GREEN RIVER FORMATION IN UTAH, USA
  24. Fish ID

    I was thinking this is a Knightia but now I’m not so sure. The body shape seems wrong and it does not appear to be compressed. @Fossildude19 @RJB
  25. Hello everyone. I saw this green river stingray bidding for much less than it is worth on an auction site. I will likely not bid on it, but in case I do I wanted to check it’s authenticity. I know these are not really faked, but it would be quite a large purchase so I just wanted to make sure everything was in order with it. Thank you all!
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