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  2. Quick backyard walk

    Thanks. The baculitids didn’t come about until around the Albian, so too late for those deposits. And in Texas Upper Cretaceous deposits, belemnites are extremely rare while the baculitids are everywhere.
  3. Ichthyosaur skull question

    So I’ve finally had the chance to have a small batch of 10 resin copies made im just experimenting with paints and finishes at the moment. i will add some more pics as I progress but here’s one of the plain resin copies straight outta the box.
  4. Quick backyard walk

    Thanks for the insight...out in Northern California when we'd find ammonites and occasionally belemnites we never ran across baculitids...not sure if they had even had appeared yet as its L.Jurassic/E.Cretaceous or it was simply a reflection of the area of deposition/environment. Very cool stuff you all have over there! thanks again.
  5. Help me identify this ground sloth...

    Are we talking about extant sloths, or extinct sloths? And what is the context for asking about this?
  6. Giant Tortois Osteoderm?

    Hey Chris! That's everything I got from Richard. He didn't mention anything about a foot though. That reference was from Jack and I don't think it applies. I assume it could be a patella, but can't find any pictures to compare to, other than ads for dog treats.
  7. Fossil fish

    The OP states: "It came from Austria, but the seller can't remember where it is from." Given the abundance of this material, it's probably safe to say it's origins are from the Green River Formation.
  8. large fossil in coastal wall California

    Welcome to the Forum, Nathan. The best thing to do would be to contact a local university or museum, and see if there is any interest in them excavating the fossil, or, at least looking at it. There is a 4 MB limit to the size of the photos. You can always add more by posting in a new reply at the bottom of the page.
  9. Today
  10. Back at full power with a few finds

    Thank you sir! Continued hunting success! Regards, Chris
  11. Giant Tortois Osteoderm?

    Nice finds John. You are making me wonder again. So if Richard says its a sesamoid mean foot bone does that rule out a patella immediately or he just cant tell which one without further examination? Got any idea? The reason I ask it that I had to look up what sesamoid means and wikipedia says its a bone embedded in a tendon or muscle...smooth surface allows tendons to slide over and the sesamoid acts like a pulley--that makes sense to me. But it also mentions that kneecaps are the 2nd largest sesamoid in our bodies. Would you happen to know if in mammoths sesamoid means foot bone only and no chance of patella? thanks. Again a cool find! Regards, Chris
  12. Back at full power with a few finds

    That's what I thought. At least you've got some sutures to see then.
  13. Uzbekistan trip

  14. Back at full power with a few finds

    See above. The Cadocerases shown, for instance, are pure calcite steinkerns with no remaining shell substance.
  15. Back at full power with a few finds

    You are right with oolithic. Lots of iron and calcite. Sandy/clay limestone. This member of the geological formation is called "Rotes Erzlager"-Red Ore Bed- since it was mined from the middle ages up to WWII for its iron. It's nevertheless not all that difficult to prep, since there is usually a good separating layer. However the iron tends to "rust" or erode away lots of fossil substance, so a good number of finds turn out to be throwaways.
  16. Back at full power with a few finds

    I was wondering the same thing. It looks like some or all of the shell in some cases was dissolved away at some point.
  17. The Permian was definitely weird. Pangea, the world dried out after the coal swamps, and all those weird vertebrates. Plus all kinds of inverts... all those spiny brachs, the last of the trilobites and tetracorals, etc. The times before extinctions are interesting, being the last of an old world.. but also I find the times after extinctions are interesting in their own way, as the start of new worlds. Right after an extinction might be slim in diversity, but it's interesting to see what survived and would later diversify into what we see in younger strata and how quickly. The early Triassic and the Paleocene come to mind. (Of course nearly every period qualifies by that criterion - Ediacaran/Cambrian, Ordovician/Silurian, Devonian/Carboniferous, Permian/Triassic, Tri/Jurassic, Cretaceous/Paleogene.. and we're living in probably the next big extinction now!)
  18. Back at full power with a few finds

    Thanks Monica
  19. Is that what that fake crab meat is??
  20. Shark tooth display for educational program

    nice collection you'll definitely get people to go out side and look for their own after seeing that.
  21. Scalarituba

    Nice Swiss Army Toolbox..
  22. Hello I have a juvenile rex tooth from Lance Formation to trade looking for dinosaur fossils thats are not from morocco.
  23. Scalarituba

    Swiss Army knives and cell phones do not make good scales. Let’s talk now about the “really cool” fossil.
  24. Scalarituba

    No, I don’t agree. Not everybody has a Swiss knife or a lighter, and not all phones are the same size. Why not make the effort to give a measure or to put a rule on the picture when it is so easy to get one? In addition, there are so many new posts every day on TFF that I refuse to waste time going to another site to find out how much a piece measures, be it American or otherwise. I repeat: when you ask for an identification you can make a small effort towards those who will spend time doing a service! I’m sorry if I misunderstood what you said. Coco
  25. Proportional Geologic Time Scale

    OK, one more update with edits recommended by @DPS Ammonite plus a few other minor tweaks... What a lot of tedious work this thing has turned out to be! Of course the editing is never done and likely there are other things I should change, but hopefully not too soon. I'm going to go do something else now!
  26. Marine coprolites? Maybe?

    Welcome to the Forum Kimberly. You have pieces of oysters and or bivalves in a Cretaceous rock that is sandstone or limestone. Take a look at this geology map to see if you can find out what formation they are from. Let us know what you find out. https://txpub.usgs.gov/txgeology/ A good source of info for north Texas fossils is: http://northtexasfossils.com/ Also, consider joining the Dallas Paleontology Society: https://www.dallaspaleo.org/
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