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  2. Finis Shale, a New Type of Lagerstätte

    The Buckhorn Quarry deposit is the one being described as an impregnation lagerstatte, not the Finis Shale. “The Pennsylvanian Buckhorn Asphalt Quarry deposits are a special, very rare type of Lagerstatte in which aragonitic shells are preserved due to early diagenetic impregnation by hydrocarbons...Impregnation Lagerstatten are a special type of conservation Lagerstatten and grade into liberation Lagerstatten.”
  3. Finis Shale, a New Type of Lagerstätte

    Your link did not work. A search for “impregnation Lagerstatte” revealed a little info. It mentioned the the Buckhorn Quarry in Oklahoma is a lagerstatte that is impregnated and preserved by oil. The Finis Shale does not appear to be impregnated by anything similar. Maybe a reading of the paper might reveal more clues.
  4. Is this a fossil

    My great uncle and aunt lived in Goodlettsville, TN. for a long time. Fond memories fishing in the local pond. Uncle Max always talked about this huge lunker that antagonized him all the time. He was always just "this close" to catching it. Sorry, I got nothin to aid you on your rock.
  5. Petrified wood in northeastern Ohio

    I am not seeing any tale tell would cellular structure. Im thinking this is a cast of a wood chunk. Sediments bury the log, ground hardens , the wood fully desentagrates away leaving a perfectly log shaped void ( mold ). Minerals seep through the ground filling the void and hardening, thus leaving a cast of the original log segment.
  6. The paper describing the new lagerstätte is out but now I am confused about another designation mentioned in it. The Finis Shale is described as being an "Impregnation Lagerstätte (a type of conservation Lagerstätte), grading into liberation Lagerstätte." They describe the new term, liberation but not impregnation so maybe someone here can clarify that. The paper gives me a new number for the species count for Jacksboro, 292. That includes 259 species of animals and astonishingly, 1429 for the Triasic Cassian Formation of northern Italy. One interesting comment I noticed though is this: "Excluding singletons, the most species rich fossil Lagerstätten by far are the Cassian Formation and the Finis Shale." By singleton I assume they mean species only represented by a single example found. Roden et al 2019_Palaeontology.pdf
  7. Today
  8. Carboniferous of Pittsburgh, PA

    The only thing that comes to mind for me is maybe a Carboniferous fish scale.
  9. turtles

    Not seeing any turtles or other such fossils. Perhaps some pics from different angles might change that.
  10. Petrified wood in northeastern Ohio

    Here's a close-up of one of the (presumed) bugs in their burrow holes.
  11. Fossil ID Resources

    I would like to build upon what Grandpa said. I like to narrow down the ID for fossils early in the process by searching for local literature. For example, search for fossils and Payson, fossils and Naco Formation, Pennsylvanian fossils. There is usually literature with pictures of fossils for most localities. I also like like to use Geolex. Search for the rock unit, (example, Redwall) and Geolex; many good papers will be sited along with good basic info on the rock unit. As for prepping Paleozoic fossils from central Arizona, clean them with soap, warm water and a medium plastic or bristle brush. Hydrogen peroxide helps too. Silicified fossils in limestone can be revealed or removed with dilute pool acid. Silicified fossils are common in the Martin Formation and less so in the Redwall and Naco Formations.
  12. Petrified wood in northeastern Ohio

    So I am new to this forum and I'm hoping someone can help me out with this. Also just an FYI I know practically nothing about fossils other than I think they're really cool. I found this rock at my old home in Geauga Gounty Ohio. I was doing some regrading around the foundation of the house when my shovel hit this thing about 2 feet underground. I am certain that it is petrified wood but how it got there is what has me scratching my head. Soil type is a silt loom (mahoning silt loom) the property in the front of the house is classified woodland wetlands. Water table is about 28" below the surface. Not what I would picture when I think of good fossil hunting grounds. So my questions are: - Is it common to find petrified wood in this type of wet clay environment? - Is there any way to determine what type of tree or shrub this may have been from? - If you look close at the picture you may be able to see what I believe are fossilized bug butts that have burrowed holes in this piece of wood. Any thoughts on that? I really wish I could have uploaded more photos but one put me right up to the limit.
  13. Horse Metacarpal Bone?

    Hard to tell because bottom and top portion of the bone has worn out very badly. It appears to be a juvenile bone. I found similar adult bison bone couple of days ago in the Dallas creek. Mine, I found under Pleistocene layer sediment. Had to dug it out so were better preserved.
  14. Cretaceous Mancos Shale Moab Invert

    Kind of looks like a trilobite. But I'm frequently wrong!
  15. Fossil ID Resources

    Hello, Sky. As I understand it, you are asking for fossil ID guides to help you do your own identifications. I like that initiative. There are some wonderful sources right here on TFF archives to start exploring. (see comments below.) But before these become really useful (they are often somewhat advanced and require some basic knowledge on the subject) you may want to start with the basics. SO: Depending on how much basic knowledge you are bringing to the subject, you may want to start out with (1) a good College Historical Geology text. (Dunbar is the author of a classic text, but it is somewhat dated now.) Go to your favorite auction site and do a search for "Historical Geology" under the topic "Books". I just did so and found 520 offerings, many at <$20. Since you seem to especially like/find invert. fossils along the lines of corals, sponges, bryozoans, I'd also recommend getting (2) a good Invertebrate Fossils book. Twenhofel and Schrock author one classic, Moore, et al author another classic. There are also many other and newer texts. Again, doing a search on your favorite auction site using "Invertebrate Fossils" or "Fossil Invertebrates" and searching under the topic "books" should produce a number of results. My search just produced 108 results with many <$20, including the two classics mentioned. Another good starting point would be (3) a good current text on Zoology. This will provide you with some insight into the various invert and vert life-forms, their design and life habits and their distinguishing features - very helpful in gaining a biological appreciation for the critters you find, enriching their value. Again, auction site produced over 2300 offerings when entering "zoology" under "books", with good offerings again at <@20. Now that we have the basics covered, for you and ALL NEWER MEMBERS of TFF, I'd highly recommend familiarizing yourself with the resources right here at your fingertips. To proceed, look directly over your logo at the top of this email. See the "Home" button. Click that button to go to the home page. Scroll down that page - all ... the ... way ... down to see what all it has to offer. About 2/3 down the "page" you will see a section entitled "fossil sites". In your case scroll down to USA and click on Arizona. One thing you will notice when you get to the Arizona page is a wealth of material contributed by @DPS Ammonite. This would be a good resource for your AZ collecting. Back on the home page, just below the USA sites is a section entitled "fossil media". That section includes both "fossil literature" and "documents". The documents section is especially loaded with resources. The pinned "libraries" are wonderful. For your purposes, I would recommend @Fruitbat 's library. Plan to enjoy this in bites over a few hours. There's a wealth of info there. And that should get you started. In the meantime, until you become an expert, continue to use the help of the experts at TFF by bringing them your questions. We all love to look at pictures of fossils - we're just that weird. P.S. You also mentioned "preparation". The home page has a "fossil Preparation" section as well.
  16. turtles

    what have i found?
  17. September Hunt NY 2019

    Wow! Your hunting areas never cease to amaze me with the quality of preservation and variety of fauna. Excellent finds, Mikey!
  18. Fossil Sites in Oklahoma

    There are a number of places in and around the Arbuckle mountains. Both the thieson quarry are white mound are privately owned and charge to get in. Thieson quarry will also sometimes keep certain finds I've been told. There is also Black Cat Mountain, but it can be a challenge to get a hold of Bob. Around Norman, you are fairly limited. The fossils in the red beds are few and far between unless you can get access to certain sites. I've heard the canadian river can produce a number of fossils, mainly petrified wood. You can also head down to lake texhoma for ammonites, but I don't think they let you collect in the park anymore, so you'd have to find places on the outskirts. I would recommend joining a local rock and mineral club. I know the one in OKC is fairly active, but they should be able to point you to some good locales. If you end up being in the Tulsa area I can point you to a few sites as well.
  19. Fossil or cool rock?

    Looks like banded chert or agate, to me.
  20. September Hunt NY 2019

    September Hunt NY 2019 I cleaned our Devonian aged fossils from the other day and assembled a group photo of our favorite finds. The brachs are rare (Elythe, Meristina) and several rare and uncommon corals (Botryllopora, Heliophyllum delicatum, large Pleurodictyums) were found. The large orange Heliophyllum (4.5") is covered in epibionts. A large enrolled Eldredgeops found in a creek stone, needs more prepping and would have been over 3" long if prone. All finds were surface collected in NY. Thanks, Mikeymig
  21. Fossil or cool rock?

    Well, fossils and rocks.
  22. Fossil or cool rock?

    Thank you! All of my fossils are from Winona Lake, IN, in Kosciusko County. I'll be sure to mention that each time.
  23. Fossil or cool rock?

    They look like two different rocks, neither are fossils. The top looks like sand/siltstone with cross bedding. The bottom one looks like chert. Do not forget to let us know where you found these and what rock formation they are from.
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