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Found 110 results

  1. Fossil dragonfly for ID please!!

    This piece is exhibited at Royal Belgian Institute of Natural Sciences and the label only says: Odonata indet. Colorado, USA. But no data about age or formation. I think that it must be related with some Euphaeidae like Litheuphaea that have similarly patterned wings and also comes from Colorado. I need help in put a name to this piece please! Thanks!
  2. I found this fossil as a doorstop at a retirement home in Centennial Colorado. Could not believe it was a doorstop. The former owner had moved into the Alzheimer's unit and left it behind. No background on it AT ALL. Sorry about that.
  3. What is this?

    I found this while going through part of a dry river bed. It’s near Colorado Springs, CO. It’s a little smaller than a dime. Could it be a crinoid AKA Indian Bead? That’s the closest looking thing I’ve found thus far.
  4. Florissant spider id ?

    All, My son found this orb-weaver spider at the Florissant Fossil Quarry in Colorado last month. It's about 1.5" (4cm) between the tips of the longest legs. There are short thorns on the abdomen, and possibly on the bases of the legs as well. Overall, it's very much like the golden orb-weavers whose webs I have the occasional misfortune of walking into in my garden. Can anybody tell me what genus, or perhaps even species this may be?
  5. Colorado Finds

    My wife and I took a four day trip to Colorado over Labor Day and we were on the move constantly, trying to take in as much scenery as possible. OF COARSE, I had to do a little collecting along the way. As I looked at various rock formations, it quickly became apparent that I was out of my comfort zone. This wasn't Minnesota Ordovician material. I do have a mix of unknowns, both mineral and fossil to present for ID but let me start with these 2 samples collected near the Ammonite Research Site in Kremmling, Co. The first item was a brownish "thing" that I threw into my backpack to check out later. It really didn't look like a collectors piece. But when I examined it at home a little cleaner and closer up, I was astounded to see these blue streaks. Any explanations???? If I didn't know better, I would have guessed heart vessels. And yes the blue is that blue in real life.
  6. Florissant Finds

    Much has been already said about Florissant, so I’ll be concise with my words. 34 MYA, lake environment, ash fall, pay dig. Controlled hunt: they dig and dump piles, you select chunks and split them at picnic tables. Not the death defying adventure I crave, but fun to do once, fill a Riker with common finds, and say I’ve been there. You can buy the same rock and have it shipped to you, but since we were in the area, I prefer the on-site experience and selecting my own rock from the piles. Hint: Skip the blocky and/or grainy stuff and target the thinly laminated, shaly stuff that is beginning to split on its own. If you see black organic matter, even better. Exploit those planes. A montage of pics follows.
  7. I found this listed as a Stegosaurus stenops ischium (looks like a left illium to me) found in Moffat County, Colorado. It looks mostly real to me, but definitely has some restoration in two places (marked in red) (edit: the smaller area looks like it might be only one side). Is the rest of it all real, or am I missing anything? Something about the area between the restored areas looks slightly off to me, though I lean a bit toward real on that. (edit: removed question on value) I would of course prefer something with no restoration, but Stegosaurus fossils are awfully hard to come by.
  8. Denver Colorado Fossils

    Hello everyone, I will be in Denver in early October, and I was hoping to spend at least one day fossil hunting. Is there anyone here who would be willing to give me some tips. This is my first trip west of the Mississippi River and I probably will not be back for years, or possibly ever, so I obviously won't pick any sites clean. I am a vertebrate guy, so that is what I am hoping to concentrate on. Any help or tips on where to go and what sorts of fossils I can find would be tremendously helpful!
  9. Help iding some morrison bone

    Have had these two for a while from brushy basin of the morrison in western Colorado i have two questions one is what could this have been i tried to id it for a while only think i could come up what was a sauropod metatarsal and two ive had someone tell me the the lines on top of the bone are bite marks but wanted to see what everybody thought .
  10. Allosaurid

    From the album Dinosaurs and Reptiles

    Morrison fm, Moffat county, Colorado 1.6 cm tall
  11. Marshosaurus?

    Recently acquired this very nice tooth from Morrison fm, Moffat County, Colorado. I think it is Marshosaurus, am I right? I am afraid to clean it right now because the tooth is very fragile. Total length is ~1.6 cm. Ruler is in inches, so 1 line=1/16 inch=~1.5 mm, so distal serration density looks to be around 4/mm; mesial carina seems to end at bottom ~3/4 of the tooth, as I understand, these are Megalosaurid characteristics. Although I couldn't find any info on other medium-small sized theropods, like Tanycolagreus, Coelurus or Ornitholestes. Thank you for help! @Troodon By the way, took those pictures with AmScope USB microscope, very useful tool for detailed teeth
  12. This was found near Douglas Pass In Colorado. The imprint is just under 3 inches point to point. I am having a hard time figuring this one out. The shale is from the same formation as Florissant Colorado from what I understand,
  13. Due to deeply discounted air travel , my wife and I decided to take a spur of the moment vacation to Colorado, a state I have never been to. We will plan on visiting Florissant and Douglas Pass for sure . I am open for other suggested fossil or mineral sites off the beaten path or special photographic spots that would be worth checking out. We will travel from Florissant to Grand Junction via Rt 24 and Rt 50. From there, we will loop back to Winter Park via I 70 and Rt 131. It is a 5 day trip so a little deviation from this itinerary is possible. Any suggestion will be truly appreciated and will help to make a wonderful vacation that I can share with TFF. Mike
  14. A few IDs from recent trip out west

    Hi all! I returned from my trip out west a few days ago and wanted to have some fossils identified before I do my big recap of my experience and my photos from the field. Here are some specimens I found of which I'm not certain of their identity. (This will not be my last post of this type from this trip). 1. Small theropod tooth (Richardoestesia sp.?, Acheroraptor temertyorum?). (There appear to be serrations on the front of the tooth but the majority of them seem to have worn off or did not extend further than midway through the tooth). (Near Newcastle, WY, Lance Fm.). 2. Turtle/Croc toe bone? (Near Newcastle, WY, Lance Fm.). 3. Larvae? (Douglas Pass, Green River Fm.).
  15. Road trip fossil hunting

    Hey everyone! My brother and I are doing a bit of driving today and we're looking for places to stop and stretch out out legs and hunt fossils. Were driving through Moab, Utah, on to Durango, Colorado, through Pagosa Springs, down towards Taos, and towards Red River. Anyone have any suggestions?
  16. ATrip to Wyoming

    Hello, I’m a new member and a novice fossil hunter. I’m headed on a trip thru Colorado, to southwest Wyoming, and then down southern Utah. I know about the pay sites in Wyoming, does anyone have any suggestions fossil sites from central thru northwest Colorado, and eastern Utah. Sorry if this is a pretty broad question.
  17. No clue first fossil Colorado

    Any idea what this is? Found it in Colorado Springs CO.
  18. Go west

    Hey all. Going out to Vernal UT at the end of the week. Spending a couple of days there, doing Dinosaur National Monument, then a week near Boulder CO. Would love any suggestions of places to hunt while I'm out there. Will also be visiting Florissant and Morrison. Trying desperately to squeeze an extra day to get up to Kemmerer WY to find some fishes!
  19. The Florissant Fossil Quarry in Colorado is near the Florissant Fossil Beds National Monument, famous for Eocene plant and insect fossils. You can dig for fossils at the Quarry and they will also ship shale to you to hunt on your own. I’m probably not going to be able get out there any time soon so I was thinking about maybe having them ship some shale to me. But before I spend $7.50 per pound plus shipping for maybe 20 pounds of shale, I thought I should check to see if anyone has experience doing this. I know it sounds expensive but it is cheaper than taking a trip out there. Any thoughts?
  20. Fossil Ridge, Colorado?

    The recent discussions about fossil hunting at Douglas Pass and Florissant, Colorado, caused me to call up Google Maps to see where they are. Lo and behold, as I was scrolling across the map, I came across a geographical feature near Gunnison called “Fossil Ridge.” Well,with a name like that I thought I should find out more about it. But an Internet search hasn’t helped much. So far all I’ve found out is that it is part of a wilderness area with hiking trails and that it is “a high, exposed ridge of Paleozoic carbonates that contain epeiric sea fossils.” But nothing more about the fossils themselves. Anyone know anything about it? At an elevation of 13,000 feet and a hike of at least several miles, it isn’t something you would want to do if the fossils weren’t interesting.
  21. Access to Douglas Pass, CO

    I'm planning a trip out west and through my research of the green river formation fossil site at Douglas Pass, CO I've found that there is a no trespassing sign on the gate which you must pass to reach the fossil hunting area. I would appreciate if anyone with experience at the site could shed some light on this because the last thing I want to do is trespass and collect fossils in an area where the latter is prohibited. I'm wondering if the no trespassing sign pertains only to the area surrounding the radar dome. I would be disappointed to find out that the site is off limits and the various posts I've read are either special access or through illegal means. Thanks, PN
  22. Help!

    I found this in a gravel pit and know little to nothing about fossils. I would greatly appreciate any help I could get identifying it! Please help!
  23. Florissant something

    Always go through the chips left on the table. Any idea what I almost missed ?
  24. I have recently purchase two large pieces of Jurassic aged bone from the Morrison Formation near the Dinosaur National Monument in Northwest Colorado. They seemed to be shaped in a way that it maybe possible to give them a general ID, I don't know if it can of course go as far as ID the specific dinosaur of course but if anyone with experience may know what kind of bones they are, any help would be appreciated as I would like to label them for the collection. As it stands the first larger one I believe to be likely sauropod bone or some other large herbivore while the second one I think may be theropod of some sort. Also if it's possible would anyone be able to tell what kind of bone they maybe like for example limb, leg, metatarsal, etc. Any feedback will be greatly appreciated! The larger bone measures nearly 9 1/2 inches long The smaller one measures approximately 6 1/2 inches long
  25. You all were so unbelievable in quickly identifying my septarian concretion yesterday, I would like to press my luck. I found this rock last summer near Durango, Colorado. It was in an area thought to be used by Native Americans. Many Thanks! EE
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