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Found 295 results

  1. I wonder if hyoliths are common in Pennsylvanian strata. Are they found in Mazon Creek Nodules?
  2. Three years ago, I went to Peggy’s Cove to look around by the lighthouse and enter the nice shops and houses. At some point, I went around looking at the beautiful rock formations created by the glaciers that once covered Nova Scotia during the Pleistocene. I went to one of the very few erratics in the town, and checked underneath to see if I could find anything. I remember there was a cluster of pebbles and stones that were mostly cylindrical, but there were some fragments and shales there as well, however I am not entirely sure if they are endemic to the Mahone Bay / Halifax area aside from places like Little Tancook Island, which does have marine fossils on the beach cliffs dating around the time of the Late Carboniferous to Early Permian. Either way, I found a rock with a strange pattern on it. It was an oval-shaped marking with lines going up towards the edges of the shape in a diagonal pattern. It is definitely some sort of fossil impression, but I am not entirely sure what it was. I know that there are some marine fossils on the islands in the area that comprise of mostly shells, but this one looked more strange to me. I think it could be some sort of mollusk or brachiopod, like the ones that scoured the Australian seas during the Pre-Cambrian period. I unfortunately don’t have the fossil with me, so I can’t take a picture of it. If anybody thinks they know what this could be based on the description of the fossil and the geological/fossil range the place I found it is in, that would really mean a lot.
  3. branched plant stuff

    we've aften seen this buckhorn shape stuff a lot . cannot help asking what it might be, branch or root of some genus. it is Later-Carboniferous-Early Permian stratum. the scale is cm-mm.
  4. Permian fish spines in coprolite

    Hi all, I have been going through some of the coprolites in my collection in order to catalog them. I have two different specimens that have fish spine and scale inclusions. They are from Waurika, Oklahoma (Permian). 1. I want to verify that this is a fish spine. If so, could it be from a Xenacanthus?. Does anyone know if Xenacanthus had scales? The coprolite contains numerous scales. Of those that are visible, this is the best preserved. 2. This coprolite has a different type of fish spine. Any idea what type of fish it is from? That may be a tooth poking out above the spine. Based on the size of the coprolites, I'm assuming the coprolite producers were feeding on fry. As always, thanks for you help!
  5. Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to commonly observe the item of interest; paler orange indicates times in earth history to less commonly observe the item of interest. White indicates very little to no practical probability of observing the item of interest. Please keep in mind that the listed indicators are things like “conspicuous horn corals,” purposefully declining to address rare encounters with groups of low preservation potential, low recognizability, etc. Got additions/amendments, especially for the groups mentioned above? Toss them in the comments below! Thank you..... https://docs.google.com/spreadsheets/d/1tVm_u6v573V4NACrdebb_1OsBEAz60dS1m4pCTckgyA
  6. Hello everyone, I've looked for a paper about mesosaurs from Brazil but did't find anything online. Does anybody know how can I tell the difference between the two species of mesosaurs found in those permian sediments (Mesosaurus brasiliensis and Stereosternum tumidum)? Thanks
  7. Marl Slate Mystery Fish

    Hello, I'm trying to track down the owners of the fossil described in this article https://www.bbc.co.uk/news/10361199 I know it's a long shot but I am wondering if anyone here knows the people who collected it?
  8. Branchiosaur - Is the ID Correct?

    Hi all, Been eyeing up this item online. Advertised as species Apateon pedestris. I thought it would be best to ask for some opinions before dropping money. I think it looks pretty nice, and at a good price. I like that it doesn't have the preservative applied to mimic skin impressions (like the majority do) but I wonder if the ID is accurate (or if it's even legit.) I'd love to add more amphibian material to the collection and I think this might be a good choice. Thoughts?
  9. Hi all, I have seen and heard from multiple different sources that the cephalic spines of Xenacanthid sharks are considered to have been venomous. This is usually supported by the serrated nature of these spines and a canal that runs down the middle of them. Has any research been done to prove or disprove this hypothesis. I know that we can never know for sure but I am curious if there is any scientific support to these claims. Thanks in advance, Zach
  10. Looking for hidden mass extinctions in the fossil record. Big data comes to paleontology https://www.nature.com/articles/d41586-020-00117-1
  11. Hello everyone, I have been looking to do a bit of practice drawing and I thought why don't I try to reconstruct an animal from my fossil collection, I decided Apateon pedestrian should be fairly simple so I went with that. So far I have looked over different fossils and skeletal diagrams and tried to compare them to modern amphibians. One thing from my research that has been very inconclusive though is the skin pattern and texture of the animal. One source states that they had a regular mosaic pattern of scales which is possible considering other temnospondyls but when looking into it more the only thing I could find is another branchiosaurid, Melanerpeton which was found with a pattern on its skin although here it said nothing about scales. Does anyone know where I could find out about what they really did look like, or should I just base it off of what we know about the other branchiosaurid?
  12. Identification

    Hello everyone, I working in dimension stone field in Armenia. This fossils where found in a sample small stone block brought for cutting to the factory, then they were machined polished as standard marble or granite tile. The tile (second photo) is 400x800mm app.16x32 inch. Kindly help me to identify these guys. Thanks
  13. Permian extinction souvenirs?

    Does anyone know of anywhere that sells anything from the Permian extinction layer? I have matrix/micro glass beads from the KT boundary layer, but I can’t find anything like that from the Permian/Triassic boundary layer, but I can’t imagine there just wouldn’t be anything for sale anywhere, so I was wondering if anyone could point me in the right direction. I’d be curious about remnants of any extinction, but I’m specifically interested in anything Permian extinction.
  14. Hello, I recently found these three items in Custer County Oklahoma where Quaternary mixed with Permian and Cretaceous bedrock can be found. They were all found about 5 feet from each other with items one and two on top of each other. When I hold them they remind me of a terracotta pot in texture and kind of sound like terracotta when you tap on them. I am guessing they are fossilized bone? If it is bone I would love to figure out what it came from but understand that determining exactly what it was from may be difficult. I appreciate any input on what they could be and would also understand if its too difficult to determine. Below is item one, kind of flat.. Maybe a Skull?
  15. Below is an interesting paper, with PDF files online, about the role of contact metamorphism of evaporites and organic rich strata by the Siberian Traps and the end-Permian extinctions. Svensen, H., Planke, S., Polozov, A.G., Schmidbauer, N., Corfu, F., Podladchikov, Y.Y. and Jamtveit, B., 2009. Siberian gas venting and the end-Permian environmental crisis. Earth and Planetary Science Letters, 277(3-4), pp.490-500. http://folk.uio.no/hensven/Svensen_EPSL_2009.pdf https://henriksvensen.wordpress.com/publicationspapers/ https://henriksvensen.wordpress.com/page/2/ Some related papers are: Burgess, S.D., Muirhead, J.D. and Bowring, S.A., 2017. Initial pulse of Siberian Traps sills as the trigger of the end-Permian mass extinction. Nature Communications, 8(1), p.164. https://www.researchgate.net/publication/318793382_Initial_pulse_of_Siberian_Traps_sills_as_the_trigger_of_the_end-Permian_mass_extinction https://www.researchgate.net/profile/Muirhead_D https://dspace.mit.edu/bitstream/handle/1721.1/113600/s41467-017-00083-9.pdf?sequence=1&isAllowed=y Polozov, A.G., Svensen, H.H., Planke, S., Grishina, S.N., Fristad, K.E. and Jerram, D.A., 2016. The basalt pipes of the Tunguska Basin (Siberia, Russia): High temperature processes and volatile degassing into the end-Permian atmosphere. Palaeogeography, Palaeoclimatology, Palaeoecology, 441, pp.51-64. Svensen, H.H., Frolov, S., Akhmanov, G.G., Polozov, A.G., Jerram, D.A., Shiganova, O.V., Melnikov, N.V., Iyer, K. and Planke, S., 2018. Sills and gas generation in the Siberian Traps. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 376(2130), p.20170080. https://www.researchgate.net/publication/327404155_Sills_and_gas_generation_in_the_Siberian_Traps https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6127383/ https://www.semanticscholar.org/paper/Sills-and-gas-generation-in-the-Siberian-Traps.-Svensen-Frolov/6d0e86fcd2beea7d96c4e15240e50650c2ac235a Rampino, M.R., Rodriguez, S., Baransky, E. and Cai, Y., 2017. Global nickel anomaly links Siberian Traps eruptions and the latest Permian mass extinction. Scientific reports, 7(1), p.12416. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5622041/ http://www.indiaenvironmentportal.org.in/files/file/Siberian trap eruptions.pdf Yours, Paul H.
  16. I have recently received this Palaeoniscus freieslebenensis from @Strepsodus, and it has some kind of coating around the fish, the matrix is slate and I would prefer to have it without this coating but I don't know if I can remove it, and even if can should I do so or would that risk the integrity of the fossil?
  17. permian tooth or claw?

    Read about the waurika oklahoma permian site on the forum. The directions, location and site description were perfect. I found many small pieces of bone, and teeth and incredible numbers of orthocanthus shark teeth. I have a two pieces that I would appreciate help with. The larger one is 17 to 20 mm (the diameter of a quarter) and the smaller is 5-8 mm in size and a tenth of it in weight. The smaller one looks like what I have seen called a small demetradon limbus claw, and a friend thought the larger was a diaductes incisor. I would appreciate help. The small claw? seems very small for demetradon, and the larger seems very curved for what little I have seen of diaductes. All help and suggestions will be appreciated. This is the only permian material I have ever collected, I have no background to go on.
  18. Rugose or Bryozoan?

    Is this a rugose coral or a bryozoan? There are definite bryozoans in this rock of different types. I was thinking it's a rugose coral, but want other eyes on this specimen. Collected from the Phosphoria Formation in Wyoming, so it's Permian in age.
  19. Below is a very interesting open access paper. Vajda, V., McLoughlin, S., Mays, C., Frank, T.D., Fielding, C.R., Tevyaw, A., Lehsten, V., Bocking, M. and Nicoll, R.S., 2020. End-Permian (252 Mya) deforestation, wildfires and flooding—An ancient biotic crisis with lessons for the present. Earth and Planetary Science Letters, 529, p.115875. https://www.sciencedirect.com/science/article/pii/S0012821X19305679 Yours, Paul H.
  20. As we all know, the trilobites were on their last proverbial legs coming out of the end-Devonian extinctions, their numbers having dwindled to a lone order, Proetida. I haven't seen a lot of talk about these last few survivors of the trilobite lineage, so I wonder how many of us have one of these survivors! I personally don't, but I'm interested to see the forum's contributions!
  21. back from the future:end-Permian events

    VAIMCLOUH End-Permian (252 Mya) deforestation, wildfires and flooding—An ancient biotic crisis with lessons for the present Vivi Vajda,, StephenMcLoughlin, Chris Mays, Tracy D.Frank, Christopher R.Fielding, AllenTevyaw, Veiko Lehsten, Malcolm Bocking, Robert S.Nicoll Earth and Planetary Science Letters 529(2020)115875 !!!!!!!!!!!!!!! NB: 7,3 Mb editorial note: Having some pre-existing knowledge of organic petrology,palynology,geochemistry would be helpful
  22. Permian Fauna Info

    Would like more guidance. I’m wondering if anyone could please direct me to site or paper listing the fauna of Permian formations (Moran / Pueblo / Wellington, Garber Complex).
  23. Part 1 Scientific Integrity in Education; Part 2: “The Great Dying” – end Permian extinction John Geissman, University of Texas at Dallas Geologists of Jackson Hole https://www.youtube.com/watch?v=2nYTuDP54ZI Yours, Paul H.
  24. What is this object?

    What is this strange object? Is it a bone? A possible fossil? It was collected on the shore of Northumberland Strait, Prince Edward Island, Canada. The strata at this location are generally late Permian, I believe. Thank you for any help you can provide. - John
  25. NSR: Red Bed Unknown

    I dug this directly from the so-called “red bed” (making it Permian) in the north sulphur river. I thought it might be petrified wood, but I am confused as to what the piece is embedded in it. Any ideas?
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