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  2. I cut the end off a piece that looks like part of a leg, it kind of lame i can only send 1 or 2 photos in low res at a time. so to send a picture of what i cut i have to start a new topic every time??
  3. Is this a real T-Rex tooth

    The closest match comes from amazon ... the mold looks like it is getting a bit soft or has/was recast several times.....
  4. are these sand stone also

    I cut the end off one of the larger pieces with my slab saw the other piece is what looke like veins , or tendon and skin like a tsunami buried these or something And I dont know if he was a paleontologist or not, i didn't want to grill him on his education when i was asking him about something.
  5. Nice ammonite in nodule piece. Great preservation and prep.
  6. The replicas I have encountered are "light," subjectively. That is, they just do not feel as weighty as a solid tooth. If it were mine, I would now try pushing a heated needle into the base. If it's resin, the needle should melt/penetrate. That leads thought to the "bottom" of the object. In at least one picture, it seems suspiciously flat. What does the base look like? Is it textured and "bone-like"? The flat bottom just gives the impression it was cast to stand-up as a display.
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  8. Is this a real T-Rex tooth

    Hi. I’m almost certain this is a cast/replica. I did a quick search and actually found a few replica teeth that were almost exact duplicates of the tooth in your photos right down to the shape of the base. Still I’d investigate it further. @Troodon
  9. If you want to come to Dallas I can take you ammonite hunting. There are numerous sites within an hour of DFW airport. Numerous species from under 1 cm on up to 12 inches plus. Heteromorphs, baculites and ammonites. Don’t expect European Jurassic type or those found in the Rockies. These are Texas Cretaceous ammonites. I don’t charge to take people out hunting. I just enjoy hunting and sharing the joy of fossil hunting with others. If I were going on a fossil hunting vacation I’d be hitting Wyoming and Montana.
  10. Found a Pennsylvanian age shark today!

    Congratulations on the wonderful find! And thanks for sharing.
  11. Help with Mississippian crinoid calyx

    I took my 4 year old Son geode and fossil hunting near the Missouri, Iowa, Illinois borders last weekend. We had a blast and found a lot of cool stuff. I found this calyx in the Warsaw formation which is Mississippian. It's obviously not done being prepped, but i figured there might be enough showing to get your opinions. It's actually been quite a challenging prep and may take some time to finish. I was thinking a possible Agaricocrinus sp., but it doesn't quite fit the bill. I can't find anything that looks identical. Any help is appreciated. @crinus @Crinoid Queen you guys still around? As found Some prep
  12. What is this?

    Do you know where these came from? How did you come by them?
  13. Will try the needle thing. Thanks so much!
  14. What is this?

    The colors of rainbow obsidian are only visible when the light is at the correct angle to be refracted. The apparent color when viewed without the sheen is black or occasionally gray.
  15. The top of the tooth looks cracked to me. I know it’s too dark. Will get daylight pics tomorrow.
  16. If it were a resin cast, you could heat a needle, and push it into the tooth. I took the liberty of brightening your photos. More detailed photos, showing any serrations that may be present would be helpful, though.
  17. Heavey but it’s on a base and the base weights more than the “tooth” part.
  18. What is this?

    Rarely, obsidian has an iridescent or metallic "sheen" caused by light reflecting from minute inclusions of mineral crystals, rock debris, or gas. These colored specimens are known as "rainbow obsidian," "golden obsidian," or "silver obsidian," depending upon the color of the sheen or iridescence. These specimens are very desirable for the manufacture of jewelry. from:Geology.com
  19. Bounce it gently in the palm of your hand. Which word comes to your mind - light or heavy?
  20. What is this?

    check this https://scottsrocks.com/scotts-blog/63-davis-creek-rainbow-obsidian
  21. Will post more pictures in sunlight tomorrow. Thanks
  22. Brighter pictures, with something like a ruler for scale, and images taken of the root and the serrations (if any)
  23. It is a reproduction.
  24. Thanks. Any way to tell for Sure?
  25. Here so info for sites out west if you end up going- In southwest Wyoming, there are several private quarries where people can find and keep fossilized fish from the Eocene epoch. Each have differing rules about what you can keep if you find something rare, here are some links. - American Fossil Quarry - Warfield Fossil Quarry/Fossil Safari In Colorado, an hour south of Denver is the Florissant Fossil Quarry where you can find well preserved leaves and insects in a younger Eocene horizon. - Florissant Fossil Quarry Although their season is already over, PaleoProspectors is the best in the business when it comes to finding dinosaurs out west and highly recommend looking into their services for next summer if you are planning a family trip in the area (may not be suitable for young kids however, I would say ages 8 and up, I would defer to Steve, the director for guidance on that). I hope this is of assistance.
  26. Edestus shark

    Read this section again. "My thought was that the oldest, bottom, tooth and root section detached from the bottom of the tooth grouping as the animal aged." If the entire tooth and root section detach from the bottom of the tooth group there would be nothing left of that section. "If the small teeth just break off from damage as the animal ages the leading edge of the tooth grouping would show obvious break damage and residual overlapping "root" sections." Again, not broken off. There could have been some mechanism (enzymatic action?) that weakened the connection (connective tissue) between the oldest tooth/base and the rest of the tooth group. Many animals, including humans, have mechanisms that absorb the root of a tooth that is being shed/replaced. New teeth would grow in from the rear as older and smaller teeth are shed from the front/bottom row. I do not believe that the teeth were never shed.
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