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Showing results for tags 'permian'.
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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
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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.
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Three bone like 'fossils' found together, any idea what they may be?
tritonpolaris posted a topic in Fossil ID
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?
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Siberian gas venting and the end-Permian environmental crisis
Oxytropidoceras posted a topic in Fossil News
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.- 1 reply
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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?
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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.
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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.
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End-Permian (252 Mya) deforestation, wildfires and flooding (open access paper)
Oxytropidoceras posted a topic in Fossil News
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.- 1 reply
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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!
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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).
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Scientific integrity in education and end Permian extinction
Oxytropidoceras posted a topic in Fossil News
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. -
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
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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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Found some great fossils with the family today in Central Queensland , braved a dust storm but was worth it. They are all of Permian age in the Tiverton formation which is marine sediment. If someone can give me some exact IDs that would be great. More photos in comments
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From the album: Permian era fossils
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From the album: Permian era fossils
Basioccipital about .5" large vertebra about 3" small vertebra about 1.5" *more info to be posted -
A few of the fossils I have found in the Coalfeilds Central Queensland ,Australia. All are of Permian age and from a terrestrial environment, I'm unsure of the species of plants. Hoping to find more in the future.
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Also: Acentrophorus glaphyrus Taxonomy from Fossilworks.org. Description for the genus from Woodward 1895, p. 51: "Trunk fusiform. Teeth slender ; opercular apparatus well- developed, with a narrow arched preoperculum. Pins small, with very large fulcra ; dorsal fin short, opposed to the space between the pelvic pair and the anal ; caudal fin symmetrical, slightly forked. Scales rhombic, smooth or feebly ornamented, the dorsal ridgeseries inconspicuous ; the scales of the flank not much deeper than broad, and those of the ventral aspect nearly equilateral" Line drawing from Gill 2009, p. 37: Identified by oilshale. References: Agassiz, L. (1833) Recherches Sur Les Poissons Fossiles. Tome IV (livr. 1). Imprimerie de Petitpierre, Neuchatel 17-32 [M. Carrano/M. Carrano] Howse, R. (1848) A catalogue of the fossils of the Permian system of the counties of Northumberland and Durham. Transactions of the Tyneside Naturalists' Field Club 1:219-264 [M. Clapham/M. Clapham/M. Clapham] Woodward, A. S. (1895) Catalogue of the Fossil Fishes in the British Museum (Natural History), Part III 1-544 [M. Clapham/M. Clapham] Gill, E. L. (2009). The Permian Fishes of the Genus Acentrophorus*. Proceedings of the Zoological Society of London, 93(1), 19–40. Diedrich, C. G. (2009) A coelacanthid-rich site at Hasbergen (NW Germany): taphonomy and palaeoenvironment of a first systematic excavation in the Kupferschiefer (Upper Permian, Lopingian). Palaeobiodiversity and Palaeoenvironments 89:67-94 [M. Clapham/P. Vazquez]
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Greetings fellow fossil lovers! Below is an assortment of fossils from the Waurika clay from the Lower Permian that I'm having trouble placing an id on. Scale bar is in millimeters. Any help would be greatly appreciated. Thanks All! Jacob
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Best Places to Find Fossils on West Coast of England/Wales
its.just.alec posted a topic in Questions & Answers
I am leaving shortly to spend just over a week in England, more specifically in the Liverpool area, and will be taking a day trip along the coast of Wales to Rhyl as well. I've done some basic research and found that Liverpool sits right on top of Triassic bedrock, and Rhyl on top of Permian bedrock. Are there any sites that would be within my realm to visit and collect at? If so, are there any rules and regulations that I, an amateur from outside the country, need to know about before I go? If there are none, are there any noteworthy shops that I may be able to visit where I can buy some local specimens? I enjoy bringing home a fossil from my trips each time I travel somewhere, the more local the better. Thanks in advance! -
Pictures first, full descriptions will follow Paleozoic Sharks and “Sharks”
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I found this small flat, disk shaped fossil in some matrix from Richard Spur (the Dolese quarry) in Oklahoma, which is Permian material. It kind of looks like a small scute to me, but not real sure. It also does look somewhat like some Pennsylvanian echinoid plates I have found. Any thoughts. The hash marks are 1mm. Thanks.
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Taxonomy from Fossilworks.org. Emended diagnosis from Dietze 2003, p. 942: "Little ornamentation of parietals, postparietals, extrascapulars, posttemporals, dermosphenotics, supratemporals and supracleithra. Parietals with lateral process. One or two medial extrascapular(s). Additional lateral extrascapulars do not contact opercle. Rostral tapering anteriorly. Sclerotic bones absent. Five `suborbital' bones. Maxillary plate deep. One to three dermohyal bones. `Spiracular' rounded. Eight branchiostegal rays. D-values of scales higher than 2:0: 42 6 2 scale rows along lateral line. Area of serrated scales on body not tapering towards anal fin. Ornamentation of scales fairly prominent." Line drawing from Dietze 2003, p. 942: Identified by oilshale. Reference: Kathrin Dietze (2003): A Revision Of Paramblypterid And Amblypterid Actinopterygians From Upper Carboniferous–Lower Permian Lacustrine Deposits Of Central Europe. Palaeontology 43(5):927 - 966. DOI:10 .1111/1475-4983.00156
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Howdy! I have a neat puzzle for the experts today! I know that rostrochonchia are not super easy to find... so I submit the follow picture. Most of the "shelled" creatures I unearth are brachiopods; cincinnetina meeki, Lepidocyclus, Rafinesquina...etc... HOWEVER! this specimen is unique to my collection. Found in northern Cincinnati - Upper Ordovician - The pronounced ridges are different than anything else found. Posted to an Ohio Fossil group, someone with a keen eye made the possibility of Rostroconchia. From my understanding these are not found often. Looking for help in identification. I do not have the tools at hand to remove anymore of the matrix without damage to the remaining fossils in the hash plate... (I have a dremel tools and dental pics...I'm lame) which are neat too. Rostrochonchia or Plaesiomys subquadratus (I compared to these specimens I had) As always, looking for education and conversation.
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From the album: Vertebrates
Paramblypterus gelberti GOLDFUSS, 1847 Early Permian Jeckenbach Rhineland-Palatinate Germany
