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Found 137 results

  1. Need help to id!

    I found this while searching for geodes and crinoids in a southern Indiana lake.
  2. Crinoid

    I recently acquired a small collection; and most specimens were well described....except for a few specimens that at least had age, locality etc .......the attached specimen containing two crinoids and calyx had VERY little information at all. I believe it may be from Illinois, as this was the only information supplied with the specimen. Any help with identification would be greatly appreciated.
  3. I found all the crinoids below at Lake Michigan beaches in Illinois. (Silurian, Racine formation) I have to admit, I used to not pay too much attention to the ubiquitous crinoids on my hash rocks. That is, until I started to look at them with a clip-onto-the-phone microscope. I quickly found that crinoid disks aren't all the same and are actually quite beautiful and intriguing. Also, finding a pretty little crinoid calyx at the beach got me to look for more like it and low and behold, a short time later, I did find another one. I do believe they are very rarely found at Lake Michigan beaches, unlike the ubiquitous petoskey stones or honeycomb corals. So I've been trying to research Silurian crinoids from this formation, alas with very little success. Oh, for the lucky people who find Devonian crinoids, bibles have been written about those, I'm so jealous! So I'm turning to TFF once more to hopefully find additional information. Is anyone here familiar with Silurian crinoids from the Wenlock epoch? Is it possible to narrow down ID of at least some of these even though I don't have a single stalk or stem segment with the calyx and vice versa. # 1: Maybe a Crotalocrinites or similar? I'd love to know what its calyx looks like. Love the flower shaped lumen, it's so pretty! For comparison, this is a pic of Silurian Crotalocrinites from the British Geological Survey: I'm not 100% sure that they occur in the Racine formation though. Also, the lumen takes up more space within the disk than the lumen on my specimen above. Otherwise the flower shape seems a perfect fit, but hard to tell if the crenolae under the dolomite glaze on my piece are as fine and tightly spaced. Maybe a it's a close relative? #2: I haven't found a single image or description of a crinoid stem that looks like a perfect medieval tower. Anyone here that's familiar with such patterned crinoid stems? (Love the Danish pastry look on its top and bottom too) #3: I assume this poor crinoid was parasitized by some other live form? I know that brachiopods have been found attached to crinoid stems, as illustrated on Chicago's Field Museum work-in-progress website. But I don't think that's what happened to this one. What could have caused such extensive damage? #4: I think this one does have a cirri scar on its left side below. Detail of what I think is the scar in the 2nd pic. The following stem disks are all microscopic in size, less than 5mm: #5: I hope the lovely star-shaped lumen might make it identifiable. #6: Same as for the above, the ship's wheel lumen surely should help with ID? #7: Another Crotalocrinites or similar? Flower shape seems a bit different though, assymetrical. #8: I've found quite a bit of literature about star shaped jurassic crinoid columnals/ossicles, but nothing about Silurian ones. This one, sitting in limestone actually has the widest diameter of all columnals in my collection. Ø = 1.5cm. #9: First calyx. I think this one is very nicely preserved. Ø1cm and height: 1cm. Is it possible to narrow down its ID, despite missing the stem and arms? Also, in most images of crinoid calyces, the brachials visibly grow out of the side of the calyx. Not so with this one. Would they have grown out of the top side by side with its mouth and anus? #10: Second calyx. It's a bit larger, about 2cm wide and 1.5cm tall. Not sure what its original shape used to be, as it's been tumbled and worn and seems to be missing parts on its side. The top is hidden in matrix.
  4. Hi! Please excuse us if we aren’t following decorum with our photo sizes, staging, etc. Since the quarantine has us unexpectedly homeschooling, we took our 5th grader to collect some fossils and though I’m sure they are pretty basic, I’m having a hard time helping her ID all of them. Any info is appreciated, as we are absolute beginners. ☺️ These were collected at a random roadcut in northern PA, another in West Virginia, and also at Beltsville Lake (where we searched all day for a trilobite until I realized I probably don’t even know what the fragments would look like).
  5. Trilobite piece+ others

    I found this piece of gravel a while back with a bunch of crinoids and the pygidium of a trilobite sticking out. Been curious ever since as to what the oval with the ridge running through the center and small hole in the middle is.
  6. hash plate plus

    2 inch by 1/2 inch with Crinoids, Bryozoans, more and did not expect to see the 3/8th inch 0.9 cm pyrite on it. Allegan County, Michigan From my dig site Yesterday. I believe it is limestone. Would like the approximate age for the fossils and about when did the pyrite form on it?
  7. Burlington Formation trip

    The sun is exposed, snows melting, and many a birds chirping means it's nice enough to go scope out some Missouri Mississippian limestone! With the randomness of the weather this state gets, this is the first chance this year I've had to return to one of my favorite spots. This is one of many Burlington Formation exposures in Missouri. There are spots where the limestone consists of almost entirely crinoidal bits and pieces! Being the picky man I am, I mainly collect and prepare calyxs and brachs. Crinoids are king here, and will be by far the most common critter. They dominated the early shallow sea Missouri once was covered by. Its cool to see how many crinoidal bits some rock has just weathering away. There is about a good 12-16 feet (guesstimate) of the limestone currently exposed, much of remains underwater still. Eventually as time takes it toll, more pieces will weather, crumble, and eventually roll down hill. This area is constantly going above and under water. There is really no reliable time to hunt this spot, unless you know when water levels are low in the area. Rarely, one may find a nice crinoid calyx among the countless stems and other crinoid pieces. Usually they are pretty weathered like this one if they don't require any prep. Many of the calyxs found are just pieces, distorted, or crushed. It usually takes my eyes a hour or so before I can recognize calyxs quickly. I thought this chunk was cool. Its a heavily weathered calyx, with a small chunk of the stem at the base. I was shirtless today with it being the nice 60 degree weather. Seems Mr. Snake was enjoying it as well. That's all of the photos I got to take out at the lake. Finds coming soon when I'm home to take better pictures. I've only got a 30 minute drive from home, so here are the finds! I'll ID most of what I found later when I'm home with literature. I found a nice assortment of crinoidal calyxs, cups, plates, stems, and a few spines. Everything in the upper portion of the photo needs cleaned with some scribe/ abbrasive work. The rest should look good after I clean them with a pick, toothbrush, and warm soapy water. I also managed to pick up a nice rugose coral, a blastoid, a bryozoan, and a few brachiopods as well. March 3, 2020. My favorite find of the day And for those of you who like minerals, I found some nice calcite crystal as well. My favorite the honey color calcite Thanks for reading.
  8. Pinnules and echinoid spine?

    Hello again, I find these crinoid parts (I think) all the time and just want another opinion on what it is. I think number 1 is crinoid pinnules. Number two is the first and only one of these I've found so far here.(Mississippian redwall limestone, Mooney member). It's about 1/4 inch long and I'm guessing perhaps an echinoid spine? I appreciate any input you guys might offer. Thank you Bob
  9. Fossil hash with a clip on lens

    Another from my fossil dig. S.W.Michigan. 1st this side shown wet is very dull, not sure if it can be improved. 2 other side shown wet. # 3 showing a zooecia. all image taken with my cell phone. last four with a clip on micro lens and dry. The zooecia Bryozoan is 1/8th inch .4 cm
  10. 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 slab of bedded limestone with the calyx pictured below. I decided to downsize the slab. The rock split along the bedding plane to reveal this: There were a couple of similar but smaller slabs nearby. I carried them back to the truck to split at home. I found one more nice calyx embedded in the rock. Pictured below are two more of last year's finds: While walking next to the waterline, I found the fragmented cephalopod pictured below. I was not sure if I wanted to keep it, so I set it aside to examine more closely on my way back. It was only after I looked at it again on my return that I noticed the tooth at the top. This year has not proven to be as fruitful as last year. The first photo pictures a calyx in somewhat rotten matrix. What should I use to stabilize it? One more Does anyone know the bryozoan to which the funnel shaped appendage pictured below belong? Thanks for looking
  11. 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 coral is about mm across. I found a relatively rare Iowaphyllum nisbeti coral that was found by Gladys Nisbet, a botanist from the Phoenix area. The colonial coral is noted for its large corallites with prominent ridges in between. Coral colony is about 9 cm x 8 cm. Here is partially silicified Alveolites coral with very distinctive compressed fish-scale like corallite tops. This piece is about 65 mm across. Here is a nice massive Thamnopora coral 17 cm across. Along with the Alveolites were two types of stromatoporoid sponges. The first is an approximately 15 cm across Amphipora sp. with mound like mamelons. The second stromatoporoid has nice laminations with some vertical pillars. View is about 4 cm across. The most amazing find was several silicified calyxes of a blastoid and at least three species of crinoids found in the Mississippian Escabrosa Limestone. Interior and exterior molds of crinoids and blastoids are occasionally found further to the north in the Paleozoic rocks. Originals or casts are rare in Arizona especially when they are found in a few square meter area. This is the best spot that I have ever found for blastoids and crinoids. The largest and best blastoid was a 31 mm wide Orophocrinus saltensis that I have entered in the current Fossil of the Month contest. It was near maximum size for the species. I have seen no finer blastoid on the internet from Arizona. Cast your vote for the battle of the blastoids. I found at least three species of silicified crinoids. If you know what they are, please let me know. Species 1 is 11 mm across by 14 mm high. Species 2 is a cup that is 17 mm across by 18 mm high. Species 3 has interesting triangular patterns and is about 2 cm across by about 2 cm high. It is in a large rock that I need to break down so that I can carry it away. I planning on going back to the site to look for more goodies.
  12. 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.
  13. Shell type?

    Hi all, this fossil hash plate is like a super hard gray mud with cracks. Even using a wood rasp to smooth much off. Mostly a trial or training piece. The shell was broken and in layers, with much covered. I have removed a lot of the cover, can I get an I'd, and is it worth continuing? I also see two Brachiapods, and they still some material stuck on the surface. I do not know of a way to dissolve the matrix, to recover the fossils. ultrasonic does nothing.
  14. Hi I was wondering if anyone could help me identify some of the key anatomical features of the calyx of this crinoid (Apiocrinites elegans) and any anatomical features of this brachiopod (specimen unknown). I have trawled and searched but am having limited success so thought there might be a fair few people that would be able to lend a helping hand on here! cheers mark
  15. Fossil has inclusion

    Hi, I pulled this Crinoids fossil hash plate out of a hill today. I may have seen the mystery in Lake Michigan mud stone, but not raised up or nearly as large. Ideas? Thanks. item is 4 in x 2 5/8th x 7/8th thick. unknown item is 1 in long x 1/2 inch wide.
  16. Fossil hash plate,

    Hi, I collected this inland in South West Michigan this week. I see lot's of Crinoidia byrozoans, and what looks like a horn coral. or possibly Evactinopora Bryozoa in limestone. . Please help with I'd, and a better age or time period? Thanks, Bob
  17. It was raining this morning, so my best site was near Yaxley. The fossils really pop there when wet. In one hour of searching I had 13 fragments of ammonite. I thought it was 14, but when washing them realised one was a miffed snail, who is now in the garden. Mostly the ammonites are pyratised, and preserve sutures and ornamentation well. I found 8 crinoid sections, including round ossicles - I normally only find star shaped ones.
  18. I am looking for crinoid sites near BG Ky. I am new here. I found my first ever crinoid in landscape gravel and am obsessed! Hope its OK to ask this?
  19. Found this rock in Highwood, IL, north of Chicago. I used to give this rock not much thought, just assumed I had thin wavy crinoid stem molds. Looking at it closer, I'm not so sure any longer. The stems seem to me to be too neatly lined up, as if the individual stalks had been cemented together when buried. Also, the individual "stems" don't seem to each have their own outer skeleton, unless the white vertical lines contain both of the adjoining crinoid skeletons but just appear as one. What's the likelyhood of that? What do you all think?
  20. Crinoid Fossil Attempt

    Recently, the opportunity presented itself to me to hunt for crinoids in the Burlington Formation of Des Moines County, Iowa. It was not a scheduled trip, but one that occurred because I in the right place but the wrong time. My mistake gave me a full free day to hunt fossils in Iowa (what a bummer!!) , so I headed out to look for some crinoids. The Burlington is so different than any rock formation that I usually hunt. It is made up of 90% crinoidal remains. It must have been a spectacular ocean floor to see!! I envision it to have been an undersea garden. Fossils other than crinoids do show themselves and I did pick up a few. First some brachiopods: A few corals. At least I think the larger one looks like coral. My doubts come due to its thinness. Trilobites are uncommon in the Burlington. This is the first trilo-bit I have ever found.
  21. Lots of ordinary things lately at Etobicoke Creek and Joshua Creek. Of course, when I began hunting in April 2019, I couldn't imagine finding such treasures, but there you have it. At the former location, we seem to have fun finding "How many decent-size orthocone nautiloids can fit on one rock," and the number appears to be 10 or 12 in some cases ! We also seem to be able to find snakes when we lift rocks, which can be disconcerting. Recently I noticed some unpromising "wavy surface" rocks, but they had a layer underneath with branching bryozoan fragments. Turns out, there are lots of them, and some are the largest chunks I've ever seen. So today I was out in the rain, getting muddy. I had to leave lots of great rocks...they were reasonably heavy chunks. Tree roots along the creek had split up the shales, pushed some promising rocks through to the forest floor, and dumped lots of slabs onto the creekbank. When I get some of these rocks cleaned up, I hope to post some pictures. Meanwhile, here is a group of recent finds.
  22. Unique crinoid stem fossil?

    I attended an estate sale last week and the homeowner collected rocks. Sifting through the 50-cent box, I came across this specimen. It's not a complete crinoid, but the size -- and the size variety -- of the stems was particularly enticing. I haven't a clue about where she may have collected it, but the coral, brachiopods and bryozoan fossils in the box look like those I've collected in Michigan.
  23. Hello. I have still been going through boxes of mostly cave mineral from a large estate sale purchase, mostly consisting of cave minerals. The tags that remain are not attached to the pieces and usually scattered among many boxes. This amazing plate I found recently and believe I finally found the label. I just need justification. I haven't found any other plates like this one. It's stunning in person!
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