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Found 20 results

  1. Can I have some help in ID for the 4 brittle star fossils I have? Do you think they belong to same sub species or different ? They are all from Morocco. Thank you so much!
  2. Hi all, I saw this cool looking piece in a rock store in a small US country town. There were many other fossils in the store but this one stood out to me with the contrast in the colors and reminded me of an alien creature. The store owner claimed it was real but I’m not entirely convinced. I loved the look of it so bought it anyway but thought I’d get your opinions on whether this was a real fossil in any way or just a pretty bit of art? It appears to be a part of the slab of rock and if it is carved they’ve done a very good job at getting all the details into this solid rock. Thanks!
  3. Any feedback on the authenticity and quality of these 2 fossils? I'm assuming the quality of the brittle star is not top notch, as the seller didnt provide close up photos but fir the right price, I might still buy it if it is authentic. Any advice will be much appreciated as I learned a lot from my recent post of a similar nature!
  4. Opabinia Blues

    Brittle star real or forgery?

    Hello! This is an apparent “fossil” brittle star, looking much like those that come from the Ordovician of Morocco. However, these particular fossils are very often faked, and I have a strong gut feeling that this particular one has been carved into the matrix. What does everyone else think? For whatever reason that I can’t quantify this piece *looks* like a fake to me, especially due to the fact that it has a very distinctive obvious outline from an air tool, which often is a sign of carving, though that I’ve also often seen that done with genuine Knightia and such.
  5. Hello everyone! first time poster here. I wanted to gather some opinions on whether this is a genuine or carved brittle starfish. I found it for sale online and wanted to purchase it for my collector wife (as a surprise). However, I heard/read there are many fake fossils and I don’t have enough confidence to make a call on its authenticity. What do you all think? thanks a lot for the help and advice. -Robert
  6. Was out near Canyon Lake today and found these oddities. I think my expectations are overreaching my reality, but I sure would like these to be something other than just something boring, like worm burrows.....sorry worm burrows, no disrespect. Any help is appreciated! Crab Claws? Shrimp? Brittle Star Arms? Seriously...I know these are probably worm burrows, but hey, a girl can hope..... t
  7. Hello all. I saw this brittle star fossil up for sale, and wanted to check if it was genuine. It says it is from Morocco, and from the Ordovician period. I know a lot of sea stars and brittle stars coming out of Morocco are carved. I am not as educated on echinoderm fossils as much as others. I've included pictures. What do you all think? Thank you!
  8. Okay so I found this specimen at the Taughannock Falls in Ithaca New York. I found it at the edge of the gorge which consists of Shale, composed of slit and clay that fell onto lime mud and hardened into rock. I've done some research and it appears to be a Brittle star trace fossil formed by their arm grazing the sand floor. Although, these Brittle Star fish traces are known as "Pteridichnites biseriatus" and they have only been discovered so far in upper Devonian shales out in western and eastern Virginia. I'm not an expert but to my knowledge the Ithaca geological formation is Devonian and w
  9. oilshale

    Loriolaster mirabilis Stuertz, 1886

    From the album: Invertebrates

    Loriolaster mirabilis Stuertz, 1886 Early Devonian Early Emsian Bundenbach Quarry Eschenbach Germany Diameter 8cm
  10. oilshale

    Euzonosoma tischbeinianum

    From the album: Invertebrates

    Euzonosoma tischbeinianum F.A.Roemer Lower Devonian Emsian Bundenbach Hunsrück Germany Length 8cm
  11. oilshale

    Echinodermata resting place

    Asteriacites lumbricalis are five-rayed trace fossils found in marine sedimentary rocks. They record the burrows of ophiuroid and asteroid sea stars on the sea floor. Here in this particular case it can be assumed that these traces originate from Palaeocoma escheri Herr, 1865 (or Ophioderma escheri), a brittle star, whose remains were found to hundreds in situ in the same layers.
  12. Ptychodus04

    Sea Star Prep

    @pamk7802 brought me a slab from the Lower Cretaceous Duck Creek Formation full of brittle stars to prep recently. Most of the prep was with abrasive. I did have a couple areas of thicker matrix that required some scribe work. Here's the slab before: and after: PVA consolidant applied to lock everything down as the arms are VERY fragile. Close up pics:
  13. Kosmoceras

    Ophiopinna elegans

    Villier, L., Charbonnier, S. and Riou, B. (2009). Sea stars from Middle Jurassic lagerstätte of La Voulte-sur-Rhône (Ardèche, France). Journal of Paleontology, 83(3), pp.389-398.
  14. As often the case with brittle stars and other starfish, this shows the oral surface and is on the underside of the sandstone bed. The bed below it is a shale and the base of the sandstone represents a sudden influx of sediment which preserved the brittle star nearly intact. This was Invertebrate/Plant Fossil of the Month Sept 2014 and Fossil of the Year 2014.
  15. From the album: Invertebrates

    Geocoma carinata (v. Münster in Goldfuss, 1833) Upper Jurassic Tithonian (Malm zeta) Zandt Germany Diameter 8cm / 3 inch
  16. oilshale

    Palaeocoma escheri (Herr, 1865)

    From the album: Invertebrates

    Palaeocoma escheri (Herr, 1865) Early Jurassic Hettangian Blumenrod Coburg Germany Ophiuroid trace fossil
  17. Euzonosoma was a brittlestar genus that existed during the Devonian period. This E. tischbeinianum is from the Bundenbach slate of Germany. The slate was quarried for use in the roofing industry for many years and, at least in some parts of Germany, you can still see houses covered by Bundenbach slates. Unfortunately, roof-slate mining in Bundenbach came to an end in 1999. The fossil has been replaced by iron pyrite or ''fool's gold''. The brittlestar already started to become decomposed at the tip of the arms. Taxonomy from Fossilworks.org. Alternative combinations: Aspidosoma tis
  18. Brittle stars are rather rare in the lithographic limestone of Solnhofen, but are quite common in Zandt.
  19. Taxonomy from Fossilworks.org. Description from Südkamp 2017, p. 139: " Furcaster is a very abundant ophiuroid with opposing fused ambulacrals. These vertebrae are elongate and wing-like. The five narrow arms are high and taper to whip-like extremities. Each ambulacral pair has a pronounced median dorsal oval cleft. The ambulacral plates are essentially flat and plastron-like orally (plastron is the lower shell of a turtle). The round small disc is granulated. The mouth frame is petaloid and the mouth-angle plates are sub-triangular in outline. The ambulacral groove is open. The laterals
  20. I was going through my fossils yesterday (7/24/2015) labeling them and adding them to my Database when this small shape caught my eye. Took out my magnifier and checked out a small shape, that at first glance, I thought was just a small Crinoid disk among the Carbonized Fern pieces. To my surprise, I had a Starfish staring back at me. Yes, I was very surprised! These are extremely rare in Northern Ohio’s, Meadville Shale, or anywhere else. I knew of another Brittle Star find that was written about, and was a new species (Strataster ohioensis). I knew that I had a copy of the PDF describing
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