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Found 4 results

  1. Rocksandrocks

    Anyone know what this is?

    Hi! I just found this fossil (it’s a fossil right?) in Northwest Arkansas, but haven’t been able to ID it. Anyone know what it is? It’s about two and half inches wide. Thanks!
  2. Rocksandrocks

    No idea!

    No idea what this fossil is. Found in Northwest Arkansas, where, I believe, it is part of the Boone Formation, Mississippian Period. I’ve checked my fossil ID book, and every scallop-shaped fossil I see has vertical ridges, rather than horizontal. The fossil is just under 2 inches wide (5.08 cm) and one inch tall (2.54 cm). At its deepest point, it has a depth of 1/2 an inch (1.27 cm). It has a deep ridge in the center and a circular spot at its deepest point (seen most clearly in the second to last photo). Thanks for your help! Addendum: Just discovered that the circular spot was some kind of sediment that washed away when I was trying to clean that area of the fossil. Under the sediment was a slightly deeper cavity, making the depth of that spot closer to 3/4 of an inch. Added two new pictures with the sediment washed away.
  3. I have been revisiting some of my fossils from my collection I gathered during a two year period where I had the privilege of exclusively exploring hundreds of acres of land in NW Arkansas in and around the town of Eureka Springs. During that time, I was able to collect on friends private land that had never before been surveyed by the outside world. 99.99% of what I came across was of oceanic and inland sea origin when it came to fossils but a couple of fossils perplexed me and this is one of them. I came across this fossil, or pseudo fossil, or weird anomalous permineralized erosion, or “I have no idea,” in a Mississippian Deposit known as the St. Joe and Boone Formations. I found this early in my collecting and had little background or research study under my belt at the time of discovery. I thought it was interesting and set it aside and moved on. I know that the area it comes from isn't known for bone, but it really does appear to be permineralized shoulder bone and upon magnification it has the hallmark of having been biological in origin, but I AM NO EXPERT, and I don't like to give into to fantastical thinking especially when there isn't other supportive evidence to suggest that Arkansas has fossil bones of any kind. What else could it be? Under magnification the flip side of the fossilized bone shape has detailed scale or skin pores and textures that have been preserved through the amazing process of permineralization…but again, there could always be a more plausible explanation that is outside my own understanding, simply because Arkansas doesn’t have bone fossils, historically speaking, aside from the Arkansaurus toe bone that was found some 160 miles south of where this fossil was found. I bring this to the forum because I would love to be able to get feedback and answers. And for future notation, I have many more fossils to present to the group and am looking forward to all of your thoughts, suggestions, expertise, and recommendations! Sincerely, PESEBECHE
  4. Hi! I've been a great admirer of this forum for years. The counter-septarian structure thread... *chef's kiss* My brother-in-law sent me this picture and asked if I thought it might be a dinosaur fossil. I told him probably not, but that I knew just where to ask to find out what it is, or might be. All I have is this photo, but based on the circular kitchen-thing it's sitting on I'm guessing maybe around 8-10" in size. My uninformed guess is it's a plant stem if it's anything. I'd love to read your educated guesses. THANKS!!!
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