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  1. Alexthefossilfinder

    Odd shapes in shale

    Few weeks ago started breaking open some pieces of shale. I've found lots of trilobite fragments that I'll post later, but what's intriguing me is these small bits of things that I find quite a lot. I can't find anything on what they might be and my closest guess is perhaps some bits of crinoids? Does anyone have more experience than me with such things?
  2. Greetings I am working on a paper regarding the subtle forms found in crinoids. If you have seen this in a publication. Could you point me in the right direction? Much appreciated.
  3. There are few reasons why I would ever wake up at 5 am and begin a two and a half hour drive out to the middle of nowhere. When I saw that the PSoA was heading out to the Brownwood area, I knew it was an opportunity too good to pass up. Everything I had hunted prior might as well have been buried yesterday when compared to the mind-blowing ages of Pennsylvanian and Permian rocks. It's still crazy to think that those formations were roughly three times the age of the oldest stuff I'd seen before. When I peeled out of the parking garage to begin my drive under the stars, I didn't feel an ounce o
  4. Crinoid stem segments from arkona Ontario.
  5. Earlier this month I spent a day collecting in the Kope Formation (Upper Ordovician) of northern Kentucky. It is one of my favorite formations to hunt, and I always walk away with some nice stuff. Here are some of my better finds. A decent Ectenocrinus. It is crushed but should turn out nicely after prep. A much smaller Ectenocrinus hiding in a hash plate A pretty classic Kope hash plate. There's a cluster of crinoid arms to the left of center - I doubt there is a calyx but we'll see. A very nice Cyclonema
  6. Mochaccino

    Pennsylvanian/Permian crinoids

    Hello, I have a whole bunch of unidentified crinoids I'd like some help identifying. From my guess on the species and the fact that there were all together (as well as the other specimens that came with it), my guess is that these are Pennsylvanian or Permian-aged crinoids from Texas or Kansas. I'm hoping narrowing down the ID would better pinpoint the provenance for them. Here goes. The calyxes all range from 1-2 cm wide. I did attempt to ID them, using resources including this by the forum's @Missourian: #1-#4 I think are all of the sam
  7. I have this crinoid columnal that is 1/2 inch in diameter. It is the largest that I have come across. It made me wonder how large they get and since as a former coworker used to say "inquiring minds have to know" I poked around on the internet a bit. I came across a picture posted from Texas of 3/4 inch ones and read about some as large as an inch. Since I know that some stems have gotten over 100 feet in length 1 inch diameter columnals don't seem that big. How wide can they get? How wide have FF members found? Patti
  8. Alexthefossilfinder

    Stem shaped object

    Found this object on a piece of shale. I suspect it might be a crinoid stem but it's really hard to see very much detail as it's so small. There is a trilobite when I split the piece in half in case that helps, though I'm looking for some more experienced eyes to help me out with id, thanks!
  9. Jan Lester


    Unfortunately I don’t have any provenance for this rock. I bought it years ago screwed to a piece of driftwood for my fish tank. When the driftwood had withered away to a twig, I was throwing it away, but noticed the fossil traces on the rock and kept it. Came across it a few weeks ago, and started messing with it. The fish store was local, and I would assume that this was created by a somewhat local person (in east TN), but I don’t know. The top of the “calyx” is translucent from the underside. Not the softest limestone I’ve found…I can see signs of bryozoans and brachiopods, but it’s hard t
  10. Lucid_Bot

    Crinoid Matrix Removal

    Howdy! I found dozens of crinoid stems recently and most of them seem to have a thin layer of matrix attached. They were found in limestone, but I don't even know what mineral they've been fossilized in...calcite? Would I be able to remove the matrix with sandpaper and perhaps even polish them? Would sanding them remove visible segmentations? All help is appreciated, thank you.
  11. Misha

    Waldron Shale crinoid

    From the album: Misha's Silurian

    Plate from the Waldron Shale containing a crinoid calyx, rhynchonellid brachiopods and a gastropod possibly Strophostylus sp.? Middle Silurian Waldron Shale Waldron, Indiana
  12. Misha

    Crinoid calyx

    From the album: Misha's Silurian

    Siphonocrinus sp.? Siluran Racine Fm. Wisconsin
  13. Tales From the Shale

    Glen Dean Formation 2022

    Found a real nice exposure of the Glen Dean Formation in central Kentucky recently. Oh man did it not dissapoint. So here is some of the best crinoid material I have ever found. A calyx with partial arms, pictured with some stems and ossicles. A single ossicle, with crinoid spins, that are still sharp. Both of which are as common as gravel here. A small peculiarcalyx and crinoid cup. This massive gorgeous Pentremites sp. I found this one on my first trip, so unfortunately no scale but I will upload more of it later. More large blasto
  14. Lone Hunter

    Cretaceous crinoid columnal?

    Found this hunting new place at Woodbine/Grayson contact, there it was nestled in the lower layer of grey-blue marl sporting the same color. Last time I checked there weren't crinoids in Grayson, so how did it get there? Have only a handful of fossils this color from there including this bivalve I can't ID, or is it a brachiopod?
  15. BrightStarGirl

    Crinoid heads?

    Very early Carboniferous / late Devonian. Burlington limestone? They are crystalized with much crinoid debris. Do you agree that the might be part of crinoid heads? As a side note I would not mind opinions on whether I should try to uncover them more or not? And if so any recommendations.
  16. Found in some landscaping gravel I’ve found boatloads of crinoid stems at. Brachiopods and gastropods are not too uncommon in those rocks. Paleozoic, likely Ordovician-Silurian.
  17. A couple weeks ago I took a road trip along the entire border of the lower peninsula of Michigan. One of the days was spent collecting Devonian fossils around Alpena. I visited four sites and had a lot of luck, finding dozens of crinoid calyxes, a couple trilobites, and many other interesting things. It will take me a while to sort through everything, but I did finish cleaning up finds from one of the sites and wanted to share. Nothing groundbreaking, but all good finds for me as I rarely get to collect in the Devonian. The coral Trachypora sp. A partial Dolatocri
  18. CornelDumitru

    Crinoidal limestone?

    Hello! Is this a crinoidal limestone rock? Dimensions are 7 x 5 x 1 cm. Wet: I picked it up in Braila county, Romania. A few hours ago. Thanks!
  19. historianmichael

    Comatulid Crinoid Centrodorsal Cup

    From the album: C&D Canal Micro Fossils

  20. Back at it again with some more specimens I hope to pin down an ID for. These are also from the Adams Branch Limestone/Winchell Fm of the Canyon Group. My method of slowly scouring through every stone around me paid off when I found these beauties. Finding a nice crinoid crown was a big goal of mine coming into the trip that I was pretty sure I wouldn't fulfill. It feels good to come away with so much more than I expected! We'll call them crowns 1, 2, and 3 from left to right in the images below: Crown 1 was super exciting for me when I initially came across it, but Me
  21. ydok

    Need IDs Please

    These were all found in Putnam County, Indiana today. Just wanted some help identifying. Thanks! 1. Very lightweight. Was able to break it in half. Almost felt like wood. I know this probably isn't a fossil, but everyone is very knowledgeable here lol 2. I know there are crinoids and sponge in here, but I'm not sure what the larger white ones are. 3. Again, I know these are crinoids, but is that large piece also a crinoid? 4. Is this just an odd-shaped rock?
  22. Finally brought out my actual camera for some good fossil pics, instead of my phone. I think the sponge really came through well! Devonian from Hungry Hollow, Ontario.
  23. Eloise

    Fossil found at Saltburn beach

    Hi all, I posted yesterday about an interesting rock found at Saltburn Beach and was informed it was crinoid stem sections. I also found this rock on the same day which appears to have some fossils in it? I’m wondering if these are also from Crinoids? They are only visible when the rock is wet. Thanks! - Eloise
  24. FossilAddict59

    Association plate

    This is a Carnian aged natural association of Traumatocrinus crinoids, and either Trachyceras, or Neoprotrachyceras Ammonoids from Guanling Guizhou province China.
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