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  1. Hello! I found this crinoid in Hardin County, KY earlier this morning that I would love to be able to ID further beyond "crinoid" haha. I found it as is (no prepwork or cleaning) in a scree pile of misc Mississippian rocks and so not sure if specifically from Salem limestone, Harrodsburg limestone, Borden formation, St Louis limestone, etc. I've included pics of the front and back of the rock/crinoid. If it helps with ID'ing, the darker portions of the rock seem to be that tar-type limestone (and not surface dirt or soil, etc). In reading the published literature on KY crinoids there seem
  2. AstroRaptor56

    Coral ID from Michigan needed

    I found these pieces over past year and half and have just gotten around to IDing them. I can’t find anything on the internet or my book on what these are. They are from the Mississippian as I’m from west Michigan. It seems they attach to things as oneI found on a horn coral. One in the picture seems to have shell on the bottom as well. An ID would be awesome because these have been a headache for me! Thank you!
  3. TenneseeFisherman

    Coral Fossil?

    Found this in some creek gravel in Franklin, Tennessee. What species of coral is this (pretty sure it's a coral)?
  4. TenneseeFisherman

    Mystery Cylindrical Fragment - Middle Tennessee

    This fossil was from a creek bed in Franklin, Tennessee. I have no paleontology or geology background so the little information I can give was that the rock it was in was about the size of a small toaster, and I chiseled it out (it actually popped out from the vibration). Imgur Photos: The rock was a dark grey (I have attached a photo of a different rock from the same area). I also included a photo shining a very bright flashlight through the bottom. The more crystallized part is where it was attached to the corner of the rock. https://imgur.com/gallery/PuchJQA
  5. I have several others, but this one is driving me nuts. It's from Virginia. This is not in a Pennsylvanian area, but instead either Silurian (I'm doubtful of this), or Devonian, or Mississippian. The area has what looks like coal and pyrite as well. There ammonites, brachiopods and orthocones in the area. Any ideas?
  6. Hello there! As it's getting nicer outside and things slowly turning back to normal, many of us are able to go out and enjoy the weather again. I journeyed to one of my favorite Burlington exposures just 10 minutes from my home. As it was so nice outside, I ran into a lot of friendly fishermen. Not unlike usual, its just me there for the fossils! My favorite spot I'm heading to has me walking a few miles before I start to hit the sweet spots. Along the few mile walk there, it looks like the beavers have been busy. You can tell as you approach the Burlington limestone alone by
  7. Hello fossil experts! I have a background in geosciences but know very little about fossils. I found the below fossils along the Rouge River near Detroit (Michigan). Doing some quick research, I think these are from the Mucrospirifer order, probably of the Thedfordensis species. Do you agree? (longest is about 1.5 inch / 4 cm) The thing I'm most puzzled about is from what strata they are from. The interweb tells me these Mucrospirifer here are mostly from the Middle Devonian (Antrim shale, Traverse Group), while the location where I found these (as well as all of the upstream
  8. I am looking to trade small flat rate box(es) of Ordovician or Mississippian matrix for unsorted Permian Wellington f. (Waurika) or K Firesteel Creek (Hell Creek) matrix. PM me if you are interested. (or any other interesting micro faunal matrix)
  9. pjullien

    Rock or fossilized bone

    I found either a rock or a fossilized bone in NW Arkansas along the War Eagle River earlier this year. The War Eagle Quadrangle https://core.ac.uk/download/pdf/72842749.pdf has sections that are Ordovician, Devonian, and Mississippian. That being said...is this just a rock? I don't want to state why I think it might be one thing or another....needing a fresh perspective.
  10. FossilNerd

    A Longer and Muddier Stop

    I took a much needed break this morning and went fossil hunting for a couple of hours. I decided that I wanted to go back to the same water eroded hill that I made a quick stop at the other day. It rained last night, so the place was a muddy mess, but I had a good time and it took my mind off of things. It's supposed to rain here for the next 2-3 days. Can't wait to see what else is revealed afterwards. I'll stop in again. Preferably after it dries out for a couple of days. Here are pictures of the hillside that I have been working. The red clay is littered with rocks and fossils
  11. FossilNerd

    A Quick Stop

    With all of the recent field trip reports being posted I have been that I haven't been able to get out there yet myself. The weather has been warmer than usual, but it’s also been rainy. Today I had very little time, but on my way home from giving my father-in-law a helping hand, I was able to make a quick stop at a local Mississippian site that is 5 minutes from my house. I believe it is St. Louis Limestone, but need to verify. I was only at the site for 20 minutes or so, but I picked up a handful of things. I didn’t get any pictures from the field as I was in a rush, but
  12. Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to com
  13. I’m hoping someone on here has some spare matrix from the Mississippian Golconda Fm in southern Illinois. The roadcuts near Anna and Vienna are pretty well known (I know a few members here have hunted there), but at over 6 hours away it’s a bit too long of a trek for me right now. A recent paper on microfossils from there piqued my interest and I’d like to try and process matrix to search for some. If you have any, PM me and we can work something out.
  14. Scientists have found a treasure trove of Mississippian shark fossils in Mammoth cave, Kentucky. ARTICLE HERE. Quote: "Based on what was exposed in the cave wall, Hodnett said the find includes a lower jaw, skull cartilage and several teeth. Hodnett determined the shark belonged to a species called "Saivodus striatus" from the Late Mississippian period, about 330 to 340 million years ago. @Archie "More than 100 individual specimens have been discovered during the project. Hodnett said teeth and dorsal fins of other shark species are also exposed in th
  15. DPS Ammonite

    Amazing Arizona Adventure II

    I went back to my very productive Devonian Martin Formation and Mississippian Escabrosa Formation near Superior, Arizona to retrieve my large single crinoid head fossil. Amazing Arizona Adventure original post link After some acid prep four crinoids and one blastoid were clustered together. Currents probably sorted them by size and shape. Several more hours of acid prep made the remaining four best ones stand out. I had to carefully break away pieces of shell that adhered and covered the crinoids and blastoid. Careful monitoring of their progre
  16. Does anyone recognise this? I noticed it when scanning photos of a recently cut and polished piece of Frosterley "Marble" from Weardale, Co. Durham, UK. (upper Mississippian, Pendleian). It shows in section as a rod about 5mm long, with perforations, central ridge and a fine reticulate pattern. My first thought was a Fenestella fragment but it doesn't look regular enough and I can find no mention of the reticulate structure. Also, I've never seen bryozoans in this part of the limestone though they occur at other levels. Now I'm wondering about a dasycladacean alga
  17. tomdonohue1

    Tree Fossil?

    Found this piece of sandstone in Sullivan Co., PA. It comes from either the Huntley Mtn. Fm. (Mississippian/Devonian) or the Burgoon Ss. (Mississippian). What could have made these concentric rings? They go through the rock perpendicular to bedding. It's odd that the center is mostly round but further out is more square. Could it be a tree fossil? That is the only thing I can think of.
  18. A couple of summers ago I found what is maybe my favorite Mississippian/Lower Carboniferous Visean shark fossil in Fife, Scotland and with some time off over the holiday season and pretty grim weather I've finally got round to prepping it When I found it there were three damaged but very near complete large Saivodus striatus teeth, the root minus the central cusp of either a smaller S. saivodus or possibly a Cladodus mirabilis and a partial unidentified spine. I've exposed and restored the three big teeth to make them look complete again as best I can for now and exposed the rest of the root
  19. Hi guys, This is my first posting on the forum, constructive criticism is appreciated. Each year, when the water level in the lake is lowered in late fall, I go there in search of crinoids The first set of photos shows one of my better finds of 2017. This small slab (approximately 9 x 12 inches) had partially eroded from the shore. I was more than pleased to see all crinoids exposed along the weathered edge. Hopefully, there are some nice ones hidden in the center. Last year, while walking up a watershed near the lake, I found a
  20. 0lderthandirt

    What makes square holes

    Hello, I pulled a large rock out of the ground a few weeks ago and I'm now cleaning up some of the small rocks that broke off as it came up. This one caught my eye cause it's got a trilobite but after cleaning I noticed all of these rectangular holes on the side. The lines on the rule are 16th inch. Any suggestions on what would've created rectangular holes like this? Thanks for looking!
  21. DPS Ammonite

    Amazing Arizona Adventure

    I found one of my most interesting and productive fossil sites ever east of Phoenix near Superior, Arizona in late November. The hill contained outcrops of the Devonian Martin Formation and the Mississippian Escabrosa Formation which is roughly the same age as the Redwall Limestone found further north. My first interesting find was several Pachyphyllum corals with very small corallites. The “craters” within the corallites averages just under 2 mm which suggested that these were the P. nevadense species which is not common in the Payson area further to the north. The c
  22. 0lderthandirt

    Is this bryozoan or just rock

    Hello again, I found these 2 rocks this morning on my property. Redwall limestone, Mooney falls member, Arizona, Mississippian. I think the tiny branch looking thing might be bryozoan and I don't know if the bumpy rock is anything at all. What do you guys think, are these just weathered rocks?
  23. Mother Nature graced us locally with another temperate day so I had time to squeeze in a long exploration into some hidden canyons that comprise a large subset of the local Mississippian formation known as 'Lake Valley' To get to the canyons of interest I walked through Silurian-Devonian exposures but I did not stop to explore for anything. Here was my first view toward the hidden Lake Valley Formation canyons. You can see deformation from the mud mounding. More to follow.
  24. 0lderthandirt

    Crinoid like

    Hello and thanks for looking. I found these on my property in NW Arizona. It's Mississippian, Mooney falls member of the redwall limestone. I found the little pill like fossil a few days ago and then the column today. These are not like the tons of Crinoid fossils I've found nearby and I can't seem to find anything that matches online. I'm sure some of you will know immediately what it is. Please help if you have and ideas. Thanks
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