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Literature: Tinn, O. et al. (2009): Thallophytic algal flora from a new Silurian Lagersttte. Estonian Journal of Earth Sciences, 2009, 58, 1, 3842
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Found these fossils from Estonia. All are set in limestone. Largest spine like formation is approx 30cm long and 6cm wide. Single is 17-20cm long. One next to large one about 10cm long Please help with I’d as we are looking to clean and polish them but would first need to know what type they are. Thank you all!
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Hello everyone! I found this thing in Estonia, near Ohessaare by the sea. Hopefully someone will be able to identify itE. If you need more information or better photos, just tell and I'll try my best to provide them
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A friend of many years showed me fossils he had found on the beach in Estonia on the Bay of Finland. He asked me what they were. I had never seen anything like it from my area. I told him I would post it for him to see if anyone could ID it. I have no idea what Formation it is from, but it’s coming from the ocean. He said they’re all over the beach. Here is a group of them he collected on the beach. I’m mostly interested in the long fossils. I don’t have closer pics for the others. Side 1 Sude 2 End shot Thanks for any thoughts you may have.
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Trilobites are mysterious creatures - after so many years they still have some secrets http://www.dailymail.co.uk/sciencetech/article-5155559/Experts-uncover-530-million-year-old-trilobite-fossil.html
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6th International Conference on Trilobites and their Relatives
piranha posted a topic in Fossil News
CONFERENCE ABSTRACTS CONFERENCE WEBSITE -
Hello, found this in a cut limestone floor plate - I wonder what this might be. I am not a geology expert, I'm a medical researcher. The image is scanned, 10 cm real size. Regards, Alar Aints
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From the album: Vertebrates
Tremataspis schmidti ROHON, 1892 Upper Silurian Island of Oesel Estonia Length 2,5cm / 1" -
Taxonomy according to GBIF.org Reconstruction by Patten, 1903, p. 237: Life reconstruction own work by Tamura By Nobu Tamura email:nobu.tamura@yahoo.com http://spinops.blogspot.com/ http://paleoexhibit.blogspot.com/ - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=50279652 Identified by oilshale using Patten, 1902. References: Patten, William (1902) On the Structure and Classification of the Tremataspidæ. The American Naturalist Vol. 36, No. 425 (May, 1902), pp. 379-393. Patten, William (1903) On the Appendages of Tremataspis. The American Naturalist, Vol. 37, No. 436, pp. 223-242. Published by: The University of Chicago Press for The American Society of Naturalists. Denison, Robert H. (1947) The exoskeleton of Tremataspis. Am. J. Sci. 245: 337-365. Märss, T., Afanassieva, O. and Blom, H. (2014) Biodiversity of the Silurian osteostracans of the East Baltic. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 105, pp 73-148. doi:10.1017/S1755691014000218 O'Shea, J., Keating, J. N. and Donoghue, P. (2019) The dermal skeleton of the jawless vertebrate Tremataspis mammillata (Osteostraci, stem-Gnathostomata). Journal of Morphology. 1–27. Bremer, O., Qu, Q., Sanchez, S., Märss, T., Fernandez, V., Blom, H. (2021) The emergence of a complex pore‐canal system in the dermal skeleton of Tremataspis (Osteostraci). Journal of Morphology 282, 8, 1141-1157. DOI:10.1002/jmor.21359
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References: George M. Robertson (1935): Oeselaspis, a new genus of ostracoderm. Am J Sci May 1, 1935 Series 5 Vol. 29:453-461 Qu, Q., Blom, H., Sanchez, S. and Ahlberg, P. (2015): Three-dimensional virtual histology of Silurian osteostracan scales revealed by synchrotron radiation microtomography. J. Morphol.2015 Aug;276(8):873-88. doi: 10.1002/jmor.20386. Epub 2015 Mar 21.
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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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Leveillites hartnageli or Leveilleites hartnageli, both names can be found in the literature (in the more recent literature Leveilleites is used). References: Tinn, O. et al. (2009): Thallophytic algal flora from a new Silurian Lagerstätte. Estonian Journal of Earth Sciences, 2009, 58, 1, 3842 Viirika Mastik and Oive Tinn (2015): New dasycladalean algal species from the Kalana Lagerstätte (Silurian, Estonia) Journal of Paleontology 89(02):1-7. Viirika Mastik and Oive Tinn (2017): Leveilleites hartnageli Foerste 1923 (Rhodophyta?) from the Ordovician and Silurian of Laurentia and Baltica: redescription and designation of a neotype. Palaeoworld 26(4).
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Originally described by Størmer as Parahughmilleria patteni. References: Størmer, L. (1934) A new eurypterid from the Saaremaa- (Oesel-) beds in Estonia. Loodusuurijate Seltsi aruanded 40: 244–249. Tetlie, O.E. & Poschmann, M.(2008): Phylogeny and Palaeoecology of the Adelophthalmoidea (Arthropoda; Chelicerata; Eurypterida). Journal of Systematic Palaeontology 6 (2): 237–249.
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