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Found 6 results

  1. Carboniferous Arthropod?

    Evenin' all! Am I going a little bit doolally, or is this impression a fossil? It's situated between a couple of thin plant fossils either side, on a piece of siderite from Duckmantian Carboniferous deposits in North Wales, UK. I've played with the lighting a bit to try and bring the details out.... It's not noticeable to the naked eye, but the photos seem to be showing up spines/protrusions in one area? It's probably nothing, but worth a double check. Cheers!
  2. The open access paper is: Clements, T., Purnell, M. and Gabbott, S., 2018. The Mazon Creek Lagerstätte: a diverse late Paleozoic ecosystem entombed within siderite concretions. Journal of the Geological Society. Journal of the Geological Society (2018) 176 (1): 1-11. https://doi.org/10.1144/jgs2018-088 https://pubs.geoscienceworld.org/sepm/jgs/article/545488/the-mazon-creek-lagerstatte-a-diverse-late https://pubs.geoscienceworld.org/jgs/issue/current Another open access paper is: Briggs, D.E., Liu, H.P., McKay, R.M. and Witzke, B.J., 2018. The Winneshiek biota: exceptionally well-preserved fossils in a Middle Ordovician impact crater. Journal of the Geological Society, 175(6), pp.865-874. https://pubs.geoscienceworld.org/jgs/article/175/6/865/548502/the-winneshiek-biota-exceptionally-well-preserved https://pubs.geoscienceworld.org/jgs/issue/175/6 Yours, Paul H.
  3. Mazonia 2018 short (re)view

    http://jgs.lyellcollection.org/content/jgs/early/2018/07/30/jgs2018-088.full.pdf. THIS IS: The Mazon Creek Lagerstätte: a diverse late Palaeozoic ecosystem entombed within siderite concretions View ORCID ProfileThomas Clements, View ORCID ProfileMark Purnell and Sarah Gabbott Journal of the Geological Society, https://doi.org/10.1144/jgs2018-088 about 2,1 MB and the usual JGSL quality
  4. Ideas?

    This was found in the Potomac group, probably Patuxent formation in PG county MD. Some historical finds between Bladensburg and Laurel, so that is the reference locations. Also some footprints found in Goddard Spaceflight Center recently, Greenbelt Md.), that would be same formation. I have some ideas, but would like to firm them up. Top, Bottom and two details.Thanks in advance.
  5. I picked this little nugget up quite a few years ago, during my early infatuation with coprolites. All I know about it is that it was found near Price, Utah. I have siderite "formations" from around the world. This is the only one I've seen that looks like it has an inclusion (or should I say the cast of an inclusion). There has long been a debate as to whether siderite rocks such as these are coprolites, casts of voids (fecal and otherwise, or iron-rich mud extrusions (what I like to call "Earth poop"). My questions are: 1. Does anyone happen to recognize what formation this might have come from? 2. Does anyone recognize the tubular structures? The only thing that comes to mind for me are worm tubes, but I don't know if there are any marine environments represented near Price, UT. As always, thanks for your help! @Carl
  6. Crustacean In Siderite Nodule

    Hi All, This is my first post to Fossil Forum and I'm quite excited about joining your community. I'm looking for a confirmation and possible identification of a specimen recently collected as part of a survey of fossils found in coal mine tailings in southern Indiana. I think this is the posterior half of a crustacean, possibly a shrimp of some kind. Hopefully, someone here can confirm or disprove. Thanks for your consideration! Best, John
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