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Found 4 results

  1. Hi guys! I found the attached Silurian and Devonian fish online and would appreciate your opinions on the specimens. The first is a Galeaspid, Polybranchiaspis, from Yunnan, China (43mm in size) and the second is an Osteostracan, Tremataspis schmidti, from the Rootsikula Formation, Island of Oesel, Estonia (28mm and 16mm headshields). They are dated to the Upper Silurian and Lower Devonian respectively. From some research it looks like the Tremataspis is genuine, however I’m not 100% on the Polybranchiaspis. Any input in terms of their authenticity would be greatly appreciated!
  2. Charlotte787

    Theropod footprint?

    Found this fossil in my grandads old collection, so unfortunately I have no info on where it’s from. Any help with ID would be much appreciated! I thought maybe it was grallator or a Devonian fish? Some more images in the comments
  3. oilshale

    Tremataspis schmidti ROHON, 1892

    From the album: Vertebrates

    Tremataspis schmidti ROHON, 1892 Upper Silurian Island of Oesel Estonia Length 2,5cm / 1"
  4. oilshale

    Thyestes verrucosus Eichwald, 1854

    References: Märss et al., (2014): Biodiversity of the Silurian osteostracans of the East Baltic. Transactions of the Royal Society of Edinburgh Earth Sciences. 105, 2, pp. 73-148. Afanassieva & Märss, (1997): Exoskeleton Structure and the Distribution of Aestiaspis viitaensis (Agnatha) from the Silurian of Estonia. Paleontologicheski Zhurnal. 6, pp. 75-80. Afanassieva, O.B., (1985) Exoskeletal features of Thyestinae (Agnatha), Paleontol. Zh., 1985, no. 4, pp. 70–75. Afanassieva, O.B., (2014) Development of the Exoskeleton in osteostracans (Agnatha, Vertebrata): New Evidence of Growth. Paleontological Journal, 2014, Vol. 48, No. 9, pp. 973–979.
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