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Found 240 results

  1. Swiss cheese rock

    Hey guys! so I recently went looking in an old local creek for arrowheads and came across a grapefruit sized clay rock. (Assuming it was clay due to the clay in the area) once I busted it open I got many voids and very small round objects. Any help will be much appreciated!!
  2. Fossil or not?

    Good evening everyone depending on where you live. I'm new to rocks and fossils and I wanted to see if anyone knew what this strange rock formation may be. I live in Central Michigan where the rock was found. Attached images. Thank you much!
  3. Recent Folkestone Fossil Trip

    Hi All, Thanks for having me here. Me and my girlfriend have recently discovered an interest in looking for fossils. Luckily for us, we have spent some time in Folkestone, England which we have discovered is pretty full of fossils in the right place. The below are a couple of finds from one afternoon down at Copt point while we were walking the dog. Any extra information about what we found would be very much appreciated. My uneducated guess is that all are ammonites except for the two specimens at the bottom, which I am completely unsure of. They all came out of a gault clay slump right where the sea meets the cliff. Is the bottom right a bone fragment? Just a rock? Again, any help is appreciated. From research the gault clay and underlying greensand is around 110 myo. Many thanks, Sam & Ro
  4. I am new to fossil preparation, I really want to prepare this echinoid I found on Jebel Hafeet, Al Ain, UAE. I have started prepping it with a small needle, since I don't have access to any fancy machines, but I think I just ended up damaging the fossil. The rock seems to be a type of clay, not too hard. It might also be limestone, since the area is known for its shallow marine sedimentary rocks. Should I soak it in water? Or vinegar? Should I have a go at it with my dremel?
  5. Bones extraction

    Hi, I am in need of advice in order to remove these bones from the field. For scale, the rib size is about 30cm and is going to the top pf the picture. My issue is that the matrix is a mix of sand and clay, very soft, and the bones are extremely fragile. Ideally i would like to remove them with the matrix but it would need to be stabilized otherwise it will fall apart. I am thinking about putting a lot of starbond on bones and matrix all around to solidify everything ? But then how to remove the plate ? By the way is it possible to remove matrix sticking to the fossil if it has been "starbonded " ?
  6. Crowley’s Ridge

    All of my pieces come from a creek on Crowley’s Ridge in northeast Arkansas near the Missouri border. Crowley’s Ridge is believed to be about 10,000 years old. Located as far north as New Madrid, Missouri and as far south as Wynne, Arkansas, it is believed by some to be a former bank of the Mississippi River. At some point, it may have even been an island. Some research has suggested that the ridge was affected by volcanic activity in the distant past. Today, Crowley’s Ridge is known for its gravel pits, uplifts, and bluffs which were likely caused by the New Madrid fault on which it sits. Our roads are covered with Crowley’s Ridge chert from the gravel pits. More practically-at least for me and my farming family-the ridge is partially covered with fertile, wind-blown “sandy loam.” We are rice farmers at the base of the ridge. I have explored the ridge since I was very young. The pieces I have collected were strange or out of place according to my limited perspective. I should also add that Crowley’s Ridge is Home to flora (plants) that are so far unknown to the Appalachian chain to its east and also unknown to the Ozark chain to its west. In this way, my little ridge is very unique. Memphis State University has done research on (Cretaceous?)sea fossils found in a creek bank near Wynne, Arkansas—-near the southern end of the ridge. I haven’t found those kinds of fossils in the area where I’ve explored. I learned most of the above information in a couple of upper level geography courses I had to take to fulfill my degree in Social Science. I don’t pretend to be an expert in fossils, minerals, or geology. I am here to learn about my “cool” rocks and clay.
  7. Mudstones?

    Hello all- I live in NC, the far Western part, but spend a lot of time in TN, at a man-made lake that was constructed as part of the TVA project, beginning in the 30s. The rocks and scenery around there have been stirred up and relocated with the construction of the lake, so it’s kind of difficult to say what ought to be where. That said, they consist mostly of rather uninteresting dolomite and quartzite in the forested areas, and then huge beach expanses of orange-tan to red to purple and even bluish clay-type slate or shale material that has hardened in spots to near-rock consistency. There are beautiful agates to be found in some banks of red clay, however, and there are also enormous, opaque, gray mudstones with intriguing shapes. I thought at first that the mudstones were some of the most boring-looking things I’d ever seen, with the utter lack of variation in their color, as if painted in dull, chalky gray, but that has changed. After attending several summers of lake recreation, I noticed that the rocks were becoming much more interesting, and paid more attention to them. It seemed that the mudstone was sloughing off of itself at a considerable rate, and that the materials that formed the center of the nodules were becoming exposed! The mudstone is gritty and slips off with repeated exposure to bioturbation, (I believe this is the correct term for tumbling by elements, no?), and as time passes, more and more fascinating things are turning up. Not all of the nodules contain a center item, but many do. Following a bit of research, I located this article: https://www.sciencedirect.com/science/article/abs/pii/0031018281900572 ...and some others that also describe fossils being found in the middle of such mudstone formations. What really surprised me was how identical to my setting the soils and rocks sounded in the article... Here are some photos of things that have come from the mudstones... Anyone have any thoughts on what these could be?
  8. Foray into Foraminifera

    Good morning all!- hope you are all healthy! I found these foraminifera (my first!!!) on April 20, but took my time fishing them out of some limestone, then meticulously cleaning and prepping them. Thanks to Clear Lake for suggesting, in my first post that it looks similar to Ozawainella ciscoensis-really appreciate it! They were all found in winterset limestone in Kansas City. Researching numerous references, I found it is far more complicated identifying them, so I'll send them to someone with more expertise in i.d.s! , and am leaving them as simply Foraminifera. I i.d. them under a dissecting scope, then used 30 gauge needles to loosen them with applications of vinegar, then washed them in alternating vinegar and water, then placed them on blue clay to make them stick in place. The best one has 4 views. Just received my digital microscope and love it!! So simple and easy to use! My previous post stated it measured 458um or so, but I used the wrong objective- all of these are 860-900um in diameter. I went ahead and placed them on the fossil of the month, only because I haven't seen a lot of images on them in the forum (though I'm still looking through ).Thoughts and suggestions appreciated, and thanks for making me feel like a kid again! Hope you enjoy!- The beauty of some things simply cannot be appreciated unless you look closely!!!! Bone
  9. Is this fossil coral?

    Hello- I was told that these strange “rocks” may actually be fossilized coral. They were found well-buried in a clay bank, in the SE US. Any thoughts or confirmation, please? Thank you!
  10. Are there ways to differentiate long neck plesiosaur bones vs. pliosaur bones*(specifically vertebrae from the kimmeridge clay in this case), other than by size, in some cases? *or any of the paddle bones
  11. Is it a fossil or something else?

    I found this in southeast Missouri in a layer of thick reddish clay in a transitional soil area with a light gray gravel.
  12. mixed, fossils

    This is a chunk of Michigan clay with sand and probably calcium. I do not know yet if I can do much with it other than perhaps cut down the size to have the fossils. Don't know if a hack saw would help much. all are like micro size and one looks like an Crinoid Archimedes screw 0.7 cm x 0.3 cm. I would like to know what is the tire track like tract line? 5/8th inch, or 0.1 x 1.59 cm or 15.8750 mm. Is this an actual fossil or impression left by a life form. Two are with my phone zoomed in about 1.7.
  13. Strange Preservation

    Here's a strange one. I found plentiful piles of what I thought were casts and internal molds in the iron-rich St. Mary's clay of Virginia last year. Loose clam fossils riddled blocks of talus. I was able to wiggle some out of their ancient resting places without s much as scratching the matrix. Generally that's because the shell disintegrated, leaving a void between the mold and the cast. If you look closely, however, what looks here like an internal mold isn't. The sculpture on the surface is clearly the outside of the shell. If it were the inside, you would see round protrusions where the ligament attached to a depression in the shell, not concentric ridges. Shown here is the most distinct of my specimens, but not the only one. Any thoughts? Mercenaria campechiensis, Miocene, VIrginia
  14. Bone found in UAE

    I found this weird looking rock yesterday on a man made beach in Ruwais, Abu Dhabi. I have never seen anything like it here in the UAE. It appears to be a pieces of bone in/on top of some hardened clay. On the underside there are small shells stuck inside. I would be glad to find out more about this mysterious rock.
  15. ESCONI recently announced a field trip to the Starved Rock Clay Pit in IL on 8/17. The layers are, from top down: Mecca Quarry Shale, Francis Creek Shale, Colchester No. 2 Coal, and paleosol. I was lucky enough to see the post in time to get on the list before it filled up. Anyone else here going? Also, I know ESCONI has been there before. Have any of you been there previously and have any tips you could share? This is my first trip to a quarry so I'm not sure what to expect.
  16. Removing putty-like adhesives

    I am wanting to remove this shark tooth for photography purposes, but it is attached to the display case via some putty-like adhesive. I haven't tried poking at it in fear of damaging the tooth (which is quite brittle), but it does appear to be somewhat hardened, although I may be wrong. Does anyone know how to best remove putties using household materials with minimal damage to the fossil? Any help is appreciated.
  17. Yarmouth fossil in clay

    I recently went to the Isle of Wight and when I was hunting at Yarmouth beach, I found this on the foreshore amongst the pebbles. The imprint is about 1cm long. Any help you can give would be much appreciated.
  18. Crushing in a crusher

    I'm reading a 1960ish report on a formation near me (Bloomsburg). Among other interesting things it says "The most effective method of extracting the fossils from the claystone is by crushing in a crusher in which fine particles drop out so that they do not constantly undergo breakage." Can anyone elaborate on this process?
  19. Ammonoids from Carniol

    Hi everyone, Should've posted these a LOOONG time ago, but me being the lazy guy I am I forgot to do so till now Anyways, here goes. These were all found by me (/my family) in the Carniol clay banks in southeastern France. They are (heavily for some) pyritized. They are from the "Gargasian", Aptian stage, Cretaceous. Would love to hear the species name of them. Genus is still fantastic. Thoughts? Thanks in advance, Max #1:
  20. Hey everyone, So this summer, like most summers, my family went to my grandpa's holiday house in southern France. Seeing that we had many days with nothing planned, I managed to convince them to go fossil hunting one day. At first, I wanted to go to Lacoste, a place known for its echinoids and gorgeous white scallops, but it turns out these quarries are no longer accessible. So instead we went to Carniol, which was a little further away. After only a few hours in the car we arrived at the village of Carniol. "Village" would still be considered being generous: there are no more than a dozen or so houses! And most seem abandoned too... There are two clay exposures on either side of the village, on the side of the road. They aren't hard to find, because the gray clay really stands out from the grass and trees. Both exposures are pretty much exactly the same. We started off at the first one.
  21. Oddballs from Carniol

    Hi all, Here are some fossils I found at this summer in Carniol, and I would like to know what they are. If the species can be said that would be fantastic. So, the fossils are all from Carniol, France. They are from the "Gargasian", of the Aptian stage of the Cretaceous, some 120'000 years old. Looks like they're all pyrite-replaced. I believe they're some kind of cephalopods, but I'm really not sure. What are your thoughts? Thanks in advance! Max
  22. Sculpture Venture

    In the next week I have some time off work and i've been thinking about having a go at making a clay sculpture. Still undecided what subject matter to use. Doren has given me some helpful advice: an obscure creature from the ancient past, or a transitional animal, both great suggestions, but i'm still open to more specific ideas. So, please post me some images of the weird and wonderful. My clay is ready to go on Monday, and I will post some pictures of what I end up making however it turns out, even if it looks like my dog has made it.
  23. trilobite in river?

    It is in the Changxing island of Dalian, a port city located in NE China, somewhere near Korea. The calcite/dolomites seems to have some scattered trilobites pieces. But the dolomite and clay layers stack up alternatively, which is not supposed to be marine face? BTW, the rocks are supposed to be of Early to Mid Cambrian period. I can not tell the speices of the trilobites. I do not know if they are heads or tails.
  24. Plesiosaur and pliosaur teeth

    From the album Marine reptiles and mammals

    Pliosaur teeth--liopleurodon ferox(?) & unidentified genera plesiosaur teeth--cryptoclidus sp & cryptoclidus sp (?) lower oxford clay callovian stage middle jurassic 160 mya peterborough, cambridge U.K. Hampton lakes & Bradley Fen.whittlesey