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  1. Samurai

    Another Broken Paraconularia sp.

    From the album: Missouri Conulariids

    Another broken specimen weathered from the rock. I always find these jellyfish fascinating whenever they present themselves.
  2. Samurai

    Broken Paraconularia sp.

    From the album: Missouri Conulariids

    A lot of my conulariid finds tend to be broken at or near the tip of the apex, even before the attachment which is typical of other conulariid specimens. I am not sure if it is a plane of weakness, a common feature when the animal dies, or simple predation, but when I collected this specimen from the Paola limestone the lower half was missing from the rest of the slab, despite being an almost clean fracture.
  3. From the album: Missouri Conulariids

    Found this wonderful specimen on March 10th, 2024. After finding this specimen I decided to do some research on these jellyfish and found out that they can form calcium phosphate pearls oddly enough. As fate would have it the only specimen I own to have a visible pearl was my most recent find! If I had not read in a paper that these jellyfish can create pearls I would not have believed it, but as the saying goes seeing is believing! Size: Pearl: Paper which has the only other image I've seen of these pearls online:
  4. Myryad

    possible fossil id

    hello, does anyone know what is this? I know it's from southern Germany or Austria mountain areas. Got it together with several ammonites and sea floor sediments parts. The possible fossil is around 9 cm long and 5 wide. Thank you
  5. Al Tahan

    New York Ordovician Jellyfish?

    I’m helping fellow forum member @DrDave move and we came across this piece he collected from the Whetstone Gulf formation a couple years back. My immediate thought was “holy ___ that’s a jellyfish!!” but I can’t say for certain but oh my gosh if it’s not a jelly then it’s done a wonderful job at looking like one lol. any thoughts from the folks here ??
  6. Normally I have a good knowledge about Solnhofen-Fossils. This is the first one since many years I really do not exactly know what it is... Might be a Jellyfish (but the symmetrie does not fit), a sponge? (do not think so, but...), young Sting ray (you see, the ideas become more interesting because we really do not have a clear idea...). Size is approx. 15 x 12 cm (6 x 4,5"), split pair what do you think? thanks for input
  7. Misha

    Essexella asherae

    From the album: Misha's Carboniferous

    Essexella asherae Cnidarian Mid Pennsylvanian Mazon Creek Lagerstätte Illinois
  8. A new paper redescribing the common Pit Eleven Jellyfish as an anemone. https://onlinelibrary.wiley.com/doi/10.1002/spp2.1479
  9. Oxytropidoceras

    Is Brooksella Even a Fossil?

    This Strange Ancient 'Fossil' May Not Have Been Left by Any Living Thing Carly Cassella, ScienceAlert, Nature, February 25, 2023 The open access paper is: Nolan, M.R., Walker, S.E., Selly, T., and Schiffbauer, J. 2023, Is the middle Cambrian Brooksella a hexactinellid sponge, trace fossil or pseudofossil? Peer J. Yours, Paul H.
  10. DarasFossils

    Solnhofen Jellyfish?

    I just went to a local rock and fossil shop in Montana and they had an amazing selection of fossils for really reasonable prices, so I ended up getting quite a few. They had a lovely Solnhofen rack, mostly filled with fish, insects, and coprolites and some beautiful squid but I saw this questionable creature in the corner for very cheap so I decided it was worth it to purchase. I am guessing it is a jellyfish due to the shape, and I hope it is, but if it is something else, I really did not waste my money. It's around an inch and a half in diameter (4cm.) Just hoping it's not a coprolite lol. Anyone know a thing or two about Jurassic Jellies? Pic below, I can take a better quality photo in the daytime if that helps.
  11. Starting in early 2021, I've been going fossil hunting at the Mazon Creek area in Grundy County, Illinois. The site I visit the most so far is the fairly large Mazonia-Braidwood State Fish and Wildlife Area. After advice from other members of the Fossilfourm, I've decided to put the nodules I'm most curious about under the microscope and dissecting scope! With these better photographs, I'm wondering if anyone could give a proper ID for these specimens?
  12. Starting in 2021, I've been going fossil hunting around the Mazon Creek area in Grundy County, Illinois. The site I visit the most so far is the fairly large Mazonia-Braidwood State Fish and Wildlife Area and at first, I would barley find anything. Then after visiting Monster Lake and another secret location in the area, I started finding more fossils. However, most are around 2-7 cm. In length and I'm still having difficulty getting IDs for them? Would anyone be able to help ID them? I think this could be some sort of Chondrichthyan or a lobe finned fish? Maybe part of a dragonfly wing or a plant? Plant fossil - Genera unknown currently? I don't know what this could be? The specimen here looks almost like a plant fossil. Worm fossil - genera unknown currently.
  13. Found in the side of a building and in the surrounding landscaping. From the Cambrian seashore sandstone of Blackberry Hill Wisconsin. The place is known for its fossils of mass jellyfish strandings and its trace fossils of some of the first arthropods, mollusks, and other animals on land. What are these? Thanks!
  14. dwillingman

    New member with a jellyfish?

    Has anyone ever heard of someone finding a solicified jellyfish fossil with a bunch of babies in The Matrix with the adult?
  15. Hello everyone, I hope everyone is doing well I have recently started getting myself into collecting fossils and I came upon this lot of jellyfish fossils so I purchased them because they seemed interesting and it’s something I never had. Do these look fine ? To me they just look like stained rocks but that could just be because jellyfish are soft bodied organisms. Thanks for your input
  16. JimTh

    Popped some Mazon concretions

    Hi folks, I went to the spoils pile with ESCONI pre-covid. I've had a bucket sitting out back ever since with concretions. Went through it today and banged a few together. I am not good at recognizing Mazon material, so I thought I would ask for some assistance here. I'm 99% sure 1A is a jellyfish, I haven't sorted out the name yet though. 1B appears to have some whiskers or antennae, so I'm hopeful it's some sort of shrimp or creepy crawly. The rest I'm kind of at a loss on. Any help appreciated!
  17. Ordivician19

    Is this a jellyfish? Mazon Creek, IL

    Hi! I’ve been working on opening some nodules from Mazon Creek, IL, and opened this one about an hour ago. I’ve been looking at pictures online of jellyfish and have seen some loosely defined like this nodule, though this is probably just a regular old concretion. What do you think? Thanks! P.S. In hindsight I realize that wetting this nodule down wasn’t particularly helpful lol
  18. Muuleey

    Possible Jellyfish?

    I can only think this MAY be the body of a jellyfish without its tentacles. Found in East Feliciana Louisiana...Help if you can.....Thanks
  19. Hi there! I was browsing through my favorite sellers' stores earlier today and I came across this very peculiar fossil. The fossil is said to be of an Ordovician age jellyfish (Eldonia Berbera) from Mecissi, Morocco. I'm still fairly new to collecting fossils, thoroughly researching them, and learning about paleontology more in depth, so the thought of a jellyfish fossilizing never really crossed my mind. I'm not entirely interested in purchasing this fossil; rather, I'm posting this more out of pure curiosity. I'd greatly appreciate it if anyone could share their insight about this particular specimen and I'd love to learn about how such a process as the fossilization of a jellyfish could go about. I think this could be a great learning moment for me and other like myself who are still in the process of learning such things. Thanks y'all!
  20. TheRocksWillShoutHisGlory

    essexella1

    From the album: Mazon creek assortment

  21. The diameter of the dark colored depression is about 1.5 cm. Around this depression there are only very faintly indicated ring-shaped structures with a diameter of about 4 cm. On the slab there is another smaller impression of a second medusa. The Krukowski Quarry near Mosinee, Wisconsin is well known for abundant ichnofossil impressions of Climactichnites and Protichnites together with hundreds of beached jellyfish. Jellyfish impressions up to 70 cm in diameter were found on several bedding layers, so far the largest jellyfish in the fossil record. The largest recent form, the lion's mane jellyfish, can have a bell with a diameter of 210 centimetres (7 feet) and tentacles around 36.6 m (120 ft) long. This site was apparently beach and shoreline at least some of the time during the late Cambrian. Fossils and tracks are from either the Mount Simon Sandstone or from the Wonewoc Formation and are preserved in medium to coarse grained sandstone. Identified by oilshale. Reference: Hagadorn, James W., Dott, Robert H. Jr., Damrow, Dan (2002) Stranded on a Late Cambrian shoreline: Medusae from central Wisconsin. Geology 30(2) pp. 147-150.
  22. Dimitar

    Jellyfish strobila fossil

    Hi guys! Please assist to identify if this is a Jellyfish strobila fossil . I was expecting it to be a plant, but the shape of the disks is so different. N.1 N.2 N.3 N.4
  23. yifanTnT

    Jellyfish from Calgary?

    Is this a fossil, or not???
  24. Rockaholic

    Pit 11 Essexella

    Just wanting to confirm that this is a jellyfish.
  25. ChicagolandFossilGuy

    Mazon Creek Jellyfish?

    Location: Mazon Creek (Illinois) I think some or all of these may be jellyfish, but I'd like to defer to others. If they are not jellyfish, what are they? The last two photos are both sides of the same pieces. There appears to be something on both sides. Thank you for your time.
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