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Found 37 results

  1. I found this twiggy fossil at the Lost Creek Dam site in Jacksboro Texas. It's the Finis Shale Member of the Graham Formation, Upper Pennsylvanian. I thought it might be a Fissispongia jacksboroensis but now I'm wondering if that is right. The two branch-like protuberances have some wavy striations on them I haven't seen before. Any ideas?
  2. 26054-38060-1-SM.pdf Here is a paper by Itano and Lucas about a revision of Camyloprion Eastman, 1902 that includes new teeth found by Mark McKinzie in the Finis Shale member of the Jacksboro Limestone at Jacksboro's Lost Creek site.
  3. Jacksboro Texas Plants

    I showed Jeffery P the Jacksboro spillway on his swing through Texas and it was my day to find plants in this otherwise marine site. At least I think that both are plants. First this piece with mm scale which I'm guessing could be Cordaites or Artisia pith. Edge view and close-up and other side Next this leaf which I think is one of the seed fern pinnules, also with mm scale other side end views and side views Does anyone agree and can you tell which of the seed ferns this could be?
  4. Pennsylvanian Goniatite from Texas

    I'm having trouble getting the right name for this tiny Goniatite from Jacksboro Texas. Upper Pennsylvanian, Finis Shale Member of the Graham Formation. Small at only 7mm.
  5. Pennsylvanian fish tooth?

    I have bulk sampled many times at the Lost Creek Reservoir in Jacksboro, TX, which is Pennsylvanian material. After dissolving a rock from the Jacksboro Limestone, I found what looks like a fish tooth that is 1.1mm long. In fact, it closely resembles some of the palaeoniscoid fish teeth that I have found in the Permian. Since it is the only one that I have ever found at Jacksboro, there is a chance that it could have somehow been transferred there. Or, although I try to thoroughly clean my screens after each use, I guess there is the chance of cross contamination. I have used those screens to sort through Permian material recently. My question is, has anyone ever found a fish tooth at Jacksboro? If so, does it look like the attached picture? Thanks for any help.
  6. crinoid or what?

    I have found these small pacman-like segments at Jacksboro, TX (Lost Creek Reservoir), which is Pennsylvanian, and have always thought that they were a segment from a crinoid stem. I then found what looks like a stem with about 7-8 segments along with more of the individual segments. However, the segments never have any of the radial lines that I often seen in other crinoid segments. Any idea what these are? Thanks.
  7. I had forgotten I had found Worthenia fossils of this size at the Jacksboro Pennsylvanian period Finis Shale site. Found these probably on my first or second collecting trip to that site 5 or 6 years ago. I have boxes of stuff I haven't looked in for years. Finding stuff that's surprising me.
  8. Another grouping of fossils from the Pennsylvanian Finis Shale Site near Jacksboro, Texas. Always something to find there.
  9. Found this somewhat flattened Brach (Derbyia crassa) in the Pennsylvanian age Finis Shale formation at the Lost Creek Reservoir borrow pit near Jacksboro, in Jack County, Texas a couple of weeks ago. It's not perfect but I love fossils that are still in the matrix and that aren't pristine and show signs of predation and deformation from the weight of the overlying matrix.
  10. I had a new look at an old hash plate from the Finis Shale member of the Graham Formation in jack County Texas. It's full of all the Pennsylvanian Sub-period fossils I expected, even a couple of broken trilobite pieces, but this spiral shape caught my eye as I was passing it under a microscope. That's a mm scale in one picture and a human hair in the other. I don't know my micro fossils but I'm guessing it's some kind of foram. Any help with a name?
  11. Finis Shale ID

    Straight line cephalopod fragments. One stood out. Plant? Finis Shale.
  12. Jacksboro, Texas bivalve?

    Jacksboro, Texas Lost Creek Dam area, about 1 inch long, Pennsylvanian, Graham Formation, Finis Shale. Need help with ID. Thanks in advance for any help.
  13. Pennsylvanian oddity

    I recently found this odd item and am trying to determine if it is a fossil, maybe a bivalve, or just geological. I found it at the Pennsylvanian site in Jacksboro, TX at Lost Creek Reservoir. The scale hash marks are 1mm. Thanks for any help.
  14. That moment when...

    Ah, yes... that moment when you're out hunting, lying on a shale outcrop on a VERY chilly morning, hunting Pennsylvanian fossils & wishing you had worn a heavier jacket than just a thin cotton hoodie... ... when suddenly you hear "tick... tick tick... tick..." and wonder "What's that noise?" ... then you realize it's from tiny bits of sleet starting to hit the ground around you. It got worse fairly quickly, and I had to deal with a 7/10ths of a mile walk back to the car, across a dam, trying to carry my gear & keep my hood low enough across my face that I could still see, without getting nailed in the face by the rather sharp bits of ice raining down. They were at minimum 1/16th of a inch in diameter, and REALLY stung. Some were even painful through my sleeves! This was NOT in the forecast! (I wasn't alone in this misadventure, but am not naming the other person, unless said person wishes to ID themself.)
  15. Pennsylvanian valve from Texas

    This came from the Lost creek Dam site in Jack County Texas, late Pennsylvanian. It looks like a valve of something but I don't even know if it's a brachiopod or a bivalve. It is probably crushed some so that doesn't make id any easier.
  16. I found several well-produced and entertaining Youtube, videos about fossils and fossil collecting, many about Texas localities. A very articulate young lady, KOI, showed and asked for help to identify Texas fossils. The fossils in the videos are well lit, focused and have species titles with them. Check out here the video "300 Million-Year-Old Fossils..." at 11:58 into the video and at 4:15 into the Whiskey Bridge fossil video. See her videos: https://www.youtube.com/channel/UCE91a7T2yWjeZsRDo0pm-wg/videos Could someone who is signed up with Youtube help her ID her fossils or better yet ask her to post her fossils that need an ID on TFF. She would be worthwhile member. Thanks, John
  17. Articulate Brachiopod

    This is a less common brachiopod collected at the rich Finis Shale site in the spillway of the Jacksboro Reservoir. It is often confused with the more common Composita subtilita which has a stronger suculus fold and no small spines.
  18. Articulate Brachiopod

    This is a large specimen of a common brachiopod with encrusting Serpula sp. collected at the rich Finis Shale site in the spillway of the Jacksboro Reservoir.
  19. Help With a Gastropod

    I found this gastropod at the Lost Creek Dam site near Jacksboro Texas. It's the Finis Shale member of the Graham Formation, Upper Pennsylvanian Period. It has transverse costae which are more closely spaced and angle downward left to right compared to other high spired gastropods found there like Pseudozygopleura sp. My only resource is the book of index fossils and the closest thing I see there is Hemizyaga sp. but it is not on the fauna list for the site. Scale in mm.
  20. I have three groups of fossils from Texas to trade. I am mainly interested in trilobites, Megalodon teeth, and Ammonites but I will accept other fossils. The first group is from Lake Texoma. It includes an unprepared ammonite, a idiohamites ammonite, a partial ammonite, echinoids, clams and an unprepared echinoid.
  21. Bullet-shaped Pennsylvanian Fossil

    I found this possible cephalopod in the Upper Pennsylvanian Graham Formation at the Lost Creek dam Spillway near Jacksboro Texas. It is 30mm long with a round profile 12mm across. The arrow in the picture below points to a portion of the inside layer that is broken away from the internal mold. The arrows in the picture below point to two more layers outside of the first. Here is a fourth layer on the outside of the others. Here you can see the layers on the blunt end This is the pointy end The ridges in picture below are the only hint of any ornamentation. At first I thought it was one of the enigmatic burrows we find there but they don't have all these layers or these ridges going around the shell just occasional linear grooved linings.
  22. Brachiopod from Jacksboro, TX

    Looking for help on an id for the following brachiopod from Jacksboro, TX. Scale is in centimeters. Formation is the Finis Shale of the Graham Formation, Pennsylvanian. Thanks in advance for your help.
  23. Jacksboro help

    Pennsylvanian Finis Shale. Need help, any ideas? 3 inches wide, 3 inches high. U
  24. Pennsylvanian Find ID Help Needed

    Hello all! I'm in the process of cleaning my finds from my treasure hunt yesterday in Jacksboro, Texas. I would appreciate y'alls help on this one! Any ideas? I know it's Pennsylvanian - doesn't look like anything else I found that day (variety of crinoids, corals, brachiopods, gastropods, some echinoid plates & spines, the one awesome shark tooth). I don't know what this bad boy is but it's pretty cool. It is the size of a penny.
  25. Jacksboro, Tx Shark Tooth Find

    Had a great fossil hunt today in Jacksboro and wanted to share pics of an awesome shark tooth I found. The team identified as Orodus variabilis. So excited - finding a shark tooth has been on my "fossil bucket list" for a long time. For size comparison, it's about the size of a penny. I'm just thrilled, it's beautiful!
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