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Found 153 results

  1. Heading out to Florissant

    Hey everyone, My wife is heading to Seattle for a week, so I’m planning a little fossil hunting in her absence. I plan on hitting up Florissant for some insects, then maybe a little Wyoming BLM hunting. If anyone is around the Ft. Collins area and wants to join, send me a pm. I have a brand spanking new Tacoma off-road, and I don’t mind driving. -J
  2. I put "brain" in quotes because I obviously know it isn't one, but helps describe its physical appearance. Although, maybe it is??? Lol. No idea what this might be. Found on my ranchland, western Colorado, amongst other dinosaur fossils on the surface. Appears to be agatized. It's in the shape that I found it and assume the entire piece would be a sphere. I was thinking some sort of coral, but due to the other dinosaur fossils in the immediate area, I'm wondering if it might be something dinosaur related. Pictures taken wet. Any guesses? Thanks
  3. Clutch of small eggs?

    Found this a couple days ago on my ranch. Western Colorado - Morrison Formation. On the surface. No prep besides light brushing. I'm not that knowledgeable, but could this be a clutch of small dinosaur or other ancient reptile eggs? Lots of dinosaur activity in the area. Probably about 20 eggs total including what isn't visible in the middle. 105g total weight. They measure roughly 1/2 inch or 1.25cm each. Larger pics included in link. Thank you https://postimg.cc/gallery/nni2692y/508eae1d/
  4. What is this?

    Greetings! I'm new on here. This came from my Father who was a rock hound and traveled to Colorado every year. I inherited this and have no idea what it is. Can anyone help? (3 lbs 4 oz, 4 1/2" x 4 1/2".) Thank You! Sherri
  5. Plant or dinosaur fossil? No idea

    Not sure what this could be. Appears to be some type of fossil with cell structure. Found it walking my property in western Colorado - Morrison Formation. No preparation done besides rinsing in water and a light brushing. Full size images in link. https://postimg.cc/gallery/2c94nahdm/565295ef/ Please let me know your thoughts. Much appreciated.
  6. Meristodonoides sp. Colorado

    From the album Odd and Rare Shark Teeth

    Meristodonoides sp. featuring most of its root from Poison Springs, Colorado. Fox Hills Formation, Maastrichtian in age.
  7. Meristodonoides sp. Colorado

    From the album Odd and Rare Shark Teeth

    Meristodonoides sp. featuring most of its root from Poison Springs, Colorado. Fox Hills Formation, Maastrichtian in age.
  8. Odontaspis sp. Colorado

    From the album Cretaceous Shark Teeth

    Odontaspis sp. from Poison Springs, Colorado. Maastrichtian in age.
  9. Odontaspis sp. Colorado

    From the album Cretaceous Shark Teeth

    Odontaspis sp. from Poison Springs, Colorado. Maastrichtian in age.
  10. Odontaspis sp. Colorado

    From the album Cretaceous Shark Teeth

    Odontaspis sp. from Poison Springs, Colorado. Maastrichtian in age.
  11. Odontaspis sp. Colorado

    From the album Cretaceous Shark Teeth

    Odontaspis sp. from Poison Springs, Colorado. Maastrichtian in age.
  12. Some maritime slab?

    I found this sandstone slab on our property in south west Colorado, near Placerville, and was struck by the spider like creature especially. There also seems to be a mollusk nearby this creature. But its legs would have been so fragile, hard to imagine how it could be a fossil. But it doesn't seem like just a random shape to me. Any thoughts? I had to reduce the pictures quite a bit to fit size requirements here.
  13. After practically years of scouting properties in my area, I’ve finally found a decently productive site. To start, will just be some neat info about the site.
  14. My most recent Pierre shale find

    Here’s one a friend and I have been trying to settle for a little while. One end of the argument is that this is an unusual rock carried off the mountains by glaciers. the other end is that this is a heavily eroded bivalve.
  15. Hello everyone, I've had a lifelong passion for fossils but I'm a relative newbie to collecting, having only done it for the last 3 years. Most of my previous fossil-collecting trips were in NC, where you find sharks teeth and shells by sifting through creeks or looking through mine deposits. I know very little about how people do it out west, which has turned out to be a big problem. On a recent vacation to Colorado, I looked around Florissant Fossil Beds and also ordered a shipment of fossils from the quarry. The shipments arrived about a week ago, and there's some pretty interesting imprints on the surface some of the rocks, namely possible Sequoia and Cedrelospermum, as well as another rounded leaf. I got an X-Acto 1 knife and started splitting yesterday. The problem is, even though I'm trying to follow the instructions of the sheet sent with the fossils, I haven't found many fossils, and worse yet I've accidentally lopped off the tops of the sequoia and Cedrelospermum leaves (it's nothing a little superglue can't fix, but still). The remaining parts of the leaves are also in a very precarious position: they are on very thin layers and I can't continue splitting the shale without possibly causing damage to them. I'll share pictures later. People who've successfully found fossils at Florissant, what are your secrets to finding things and not causing damage to fossils that are in the same rock that you're splitting?
  16. Douglas Pass Colorado

    Fossils found at Douglas Pass, Colorado this weekend. Seed?, Unidentified leaves. Shells. (Elimia tenera and unidentified clam). Plant fossils were found near the Radar Dome. The shells were found at a much lower level.
  17. I've bought fossils, and I've found them myself! Here are some of my greatest finds in my collection!
  18. Coral I found.

    I found some coral fossils on the Million Dollar Highway. I found some other cool fossils, but I couldn't pull them out of the rock...
  19. I’m not familiar with fossils at all so I need help identifying the specimen in the attached pictures. I found this mineral specimen, or at least I thought it was just a large crystal rock, in 2012 at my stepdads house in Placerville, Colorado(San Juan Mountains, down valley from Telluride). I was moving the rock, accidentally dropped it and several pieces broke off. That’s when I wondered if it was a fossil due to the presence of what looks like dried blood, venous cavities, connective tissue, bone, and skin. It is as if it was frozen instantly and turned into stone and crystal, Medusa reminiscent. The San Juan volcanic field is said to be the largest eruption in the world and the proximity of where I found it could explain the strange preservation (if it is in fact a fossil).
  20. High Desert Fossil Run 2019

    Well, I'm headed up and ready to go. Been planning this trip for five months! obviously nothing to report yet, but I'm hoping a little pre-game Q and A with you guys might help me raise the safety factor. I'm traveling solo and I have never been to Millard county. No worries though, as desert camping and travel goes, this is an easy one for me. Three weeks in the Atacama on foot was far riskier! Death Valley, the Mojave, and Baja aren't too tough. Anyway: I've been scouting the works of Smith, Wilson, and about twenty other geologists and paleontologists to try my hand at places like Cowboy Pass, Camp Canyon, the red coral of the Foote range and Marjum pass in addition to the "tourist" sites like Fossil mountain in The Barn, reliable U-Dig, Fossil Butte and the fish quarries and my childhood dream, Dinosaur National Monument. ( I blame you all for everything but UDig and Dinosaur....first heard of those other spots on here or on members sites) Right now, I'm worried about road conditions in Millard county. Very hard to find recent reports and it looks like the weather was wet and floody. I plan to BLM camp for the entire trip of only for the quiet and some armchair astronomy. I don't use GPS or Internet maps, just topos, a recent road atlas, and my trusty Brunton transit. Any safety/weather/driving tips I should know before I get there?
  21. Does anyone have a copy of the following paper: Michael D. D'Emic Â& Matthew T. Carrano (2019) Redescription of Brachiosaurid Sauropod Dinosaur Material From the Upper Jurassic Morrison Formation, Colorado, USA. The Anatomical Record (advance online publication) doi: https://doi.org/10.1002/ar.24198 https://onlinelibrary.wiley.com/doi/10.1002/ar.24198
  22. Fossilized Coral? Western Colorado

    A user over at mindat suggested to me that these samples might be some type of fossilized coral. I find them in western Colorado. If coral, any ideas of the specifics or a link to where I can find more information? If not coral, any idea what it might be? Thank you
  23. Fossil I.D

    Hello fellow TFF Members Does anyone have any idea what this might be? Found it, and another one very similar, in the Creede Formation of Creede, Colorado. Sorry that I did not put in a scale; it is approx. 3" in diameter. The center circle has radiating lines. From that circle there are several concentric rings. From what I have read, the site was a salty lake formed in the Creede Caldera. Most of the fossils are plants and the sediment is fine grained volcanic ash. Almost looks like a jellyfish to me. Any I.D. will be much appreciated. I am stumped. Thanks, ODK
  24. Trace Fossils? Western Colorado

    Do these appear to be trace fossils? Found in Western Colorado. Thank you
  25. No idea what this could be

    I've got no idea what this might be. Found in Western Colorado. Parts of it look like skin(?) and other parts look like tooth(?). I doubt that's what they are, but that's what they sort of visually look like. It isn't heavy like a fossil and doesn't sound like one when you tap it on something. It weighs maybe what you expect a hard piece of plastic would weigh. The white thing in pictures 1,2, and 3 reminds me like a tooth being tapped on in how it feels (I tapped it against my own tooth as well). In picture 4, part of it broke off. It's almost like ivory(?). The only preparation I've done to it is rinsing it under water and using a soft bristle brush. Anyhow, dying to know what you guys/gals think. Thank you
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