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Showing results for tags 'taphonomy'.
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How are dinosaur tissues preserved in deep time? by Tracey Peake, North Carolina State University, PhysOrg, May 1, 2023 The open access paper is: Anderson, L.A., 2023. A chemical framework for the preservation of fossil vertebrate cells and soft tissues. Earth-Science Reviews, no. 104367. Yours, Paul H.
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Does anyone know of deposits other than the LeGrand crinoids where each species is preserved in a different characteristic color, all on the same slab? We have this kind of thing in the brachiopods and trilobites of the Decorah Formation (Late Ordovician) here in Missouri, which is what got me thinking about it. But I've never seen a report summarizing other cases of this phenomenon, and as I think about it I'm not sure I can name any others. Can you? Brachiopod photo info: A= Zygospira B= Rafinesquina C= Doleroides 1 = Isotelus, rusty brown 2 = ?Achatella, light gray
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Unique wood from Round Mountain Silt, anyone seen anything like this?
H. Drax posted a topic in General Fossil Discussion
Been going through an old collection I haven't looked at in many years and in it are 15 or 20 pieces of wood, collected at the Ernst quarry back in the 90s. I haven't seen any similar examples from Sharktooth Hill or elsewhere. The pieces are somewhat fragile and often partially hollow with small (druzy?) purplish crystals on the interior. The rest is mostly composed of the same purplish-black material but man also show a tougher translucent outer crust. Some of the interiors of these pieces also contain powdery, lightweight chunks of brown matter. Based on appearance -
How Fossils Get That Way: Paleontologist Anna “Kay” Behrensmeyer
Oxytropidoceras posted a topic in Fossil News
How Fossils Get That Way: Paleontologist Anna “Kay” Behrensmeyer’s Years Amidst Rock And Bone by Dale Debakcsy, Women You Should Known, June 15, 2022 Meet the Scientist Studying How Organisms Become Fossils In the latest iteration of “Meet a SI-entist,” get to know the scientist who pioneered a new scientific field - taphonomy. Margaret Osborne, Smithsonian News, May 28th, 2020 Anna K. Behrensmeyer Senior Research Geologist and Curator of Vertebrate Paleontology Yours, Paul H. -
Origin of metazoans as recorded by small carbonaceous fossils - 2022 open access review paper
Oxytropidoceras posted a topic in Fossil News
The comprehensive, open access review paper is: Slater, B.J. and Bohlin, M.S., 2022. Animal origins: The record from organic microfossils. Earth-Science Reviews, 232, no. 104107. open access review paper A related video. Possible sponge fossils in the Tonian of northwestern Canada, Elizabeth Turner, Laurentian University, Virtual Seminars in Precambrian Geology Turner's open access paper is: Turner, E.C., 2021. Possible poriferan body fossils in early Neoproterozoic microbial reefs. Nature, 596(7870), pp.87-91.-
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- origin of metazoans
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Human Occupation of the North American Colorado Plateau ∼ 37,000 Years Ago
Oxytropidoceras posted a topic in Fossil News
New Mexico mammoths among best evidence for early humans in North America by University of Texas at Austin The paper is: Rowe, T.B., Stafford Jr, T.W., Fisher, D.C., Enghild, J.J., Quigg, J.M., Ketcham, R.A., Sagebiel, J.C., Hanna, R. and Colbert, M.W., 2022. Human Occupation of the North American Colorado Plateau∼ 37,000 Years Ago. Frontiers in Ecology and Evolution, no. 534. (open access paper) Formation and Taphonomy of Quaternary Fossil Accumulations: Advances and New Perspectives Yours, Paul H.- 1 reply
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- colorado plateau
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Stunningly preserved ‘Cretaceous Pompeii’ fossils may not be what they seem By Mindy Weisberger, Live science https://www.livescience.com/agu-dinosaurs-3d-cretaceous-pompeii.html The talk is: Chen, E., MacLennan, S., Kinney, S., Chang, C., Olsen, P., Sha, J., Fang, Y., Liu, J. and Shoene, B., 2020, December. A New Look at the Lujiatun: Dinosaur Attrition in Burrows, Not a Cretaceous Pompeii and Not a Shoreline to the Jianshangou Lake. In AGU Fall Meeting 2020. AGU. https://www.ldeo.columbia.edu/sites/default/files/u1748/Chen_Abstra
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Matthias, A. and Carpenter, K., 2004. Experimental and glass bead collecting by the harvester ant. Neues Jahrbuch Fur Geologie Und Palaontologie Monatshefte, (2), pp.80-86. https://www.researchgate.net/publication/287636793_Experimental_fossil_and_glass_bead_collecting_by_the_harvester_ant https://www.researchgate.net/profile/Kenneth_Carpenter3/2 Schoville, B.J., Burris, L.E. and Todd, L.C., 2009. Experimental artifact transport by harvester ants (Pogonomyrmex sp.): Implications for patterns in the archaeological record. Journal of Taph
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- taphonomy
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The Scientist Studying How Organisms Become Fossils - Dr. Kay Behrensmeyer
Oxytropidoceras posted a topic in Fossil News
the Scientist Studying How Organisms Become Fossils Margaret Osborne, Smithsonian Blog, May 28th, 2020 Yours, Paul H.- 2 replies
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Fossil-bearing concretion formation over week-month timescales
Oxytropidoceras posted a topic in Fossil News
Yoshida, H., Ujihara, A., Minami, M., Asahara, Y., Katsuta, N., Yamamoto, K., Sirono, S.I., Maruyama, I., Nishimoto, S. and Metcalfe, R., 2015. Early post- mortem formation of carbonate concretions around tusk-shells over week-month timescales. Scientific reports, 5, no. 14123. Open access Nagoya University PDF link Researchgate PDF link More papers by Ippei Maruyama More papers by Hidekazu Yoshida Related papers are: Yoshida, H., Yamamoto, K., Minami, M., Katsuta, N., Sin-ichi, S. and Me- 2 replies
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- carbonate concretions
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I'm curious what may have caused this burrow-like hole in dalmanitid eye? The eye popped off while I was prepping it availing a look inside. Microbes, worms, decay?
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Florida Leisey Shell Pit, Hillsborough County, Florida, Publications
Oxytropidoceras posted a topic in Fossil News
Below are some online PDF files of the now defunct, but still famous, the Leisey Shell Pit in southwest florida. Leisey Shell Pit 1A, University of Florida Vertebrate Fossil Locality HI007 https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/sites/leisey-shell-pit-1a/ https://www.floridamuseum.ufl.edu/100years/leisey-shell-pit-fossils/ Hulbert, Jr., R.C., Morgan, G.S. and Webb S.D., eds., 1995. Paleontology and Geology of the Leisey Shell Pits, Early Pleistocene of Florida. Bulletin Florida Museum of Natural History, 37 (Part I). ht-
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Surprise! Fossils in a flash What the study of death, decay and ‘instant’ fossils is telling science about how life has evolved. Douglas Fox, Science News for Students, May 16, 2020 https://www.sciencenewsforstudents.org/article/surprise-fossils-flash Yorus, Paul H.
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What Future Civilization Will Learn From Tomorrow’s Fossils
Oxytropidoceras posted a topic in Fossil News
What Future Civilization Will Learn From Tomorrow’s Fossils Rick Robinson, Northrop Grumman, April 27, 2020 https://now.northropgrumman.com/what-future-civilization-will-learn-from-tomorrows-fossils/ Fossils of the 21st century Maddie Stone, Gizmodo, December 12, 2012 https://earther.gizmodo.com/the-fossils-of-the-21st-century-1830693850 Humans Produce So Much Junk, We Are Creating a New Geological Layer The technofossils we leave behind will create a mark on the planet. By Starre Vartan, Slate, March 27, 2017 https://slate.com/technol -
Where can I find information about the taphonomy of the Asery (Aseri) Level in the St.Petersburg region, Russia?
Oxytropidoceras posted a topic in Questions & Answers
Has a comprehensive study of the taphonomy of the trilobites found in the Asery Level, Simankovo Formation, been published in either English or Russian? If so, where has this research been published? I have found online a copy of: Ivantsov, A. Y. (2004) Ordovician Trilobites of the Subfamily Asaphinae of the Ladoga Glint. Paleontological Journal v. 37, supp. 3, pp. S229-S337. https://www.researchgate.net/publication/260191469_Ordovician_Trilobites_of_the_Subfamily_Asaphinae_of_the_Ladoga_Glint https://www.academia.edu/2353004/Ordovician_Trilobites_of_the_ -
What fossils will modern-day civilization leave behind?
Oxytropidoceras posted a topic in Fossil News
What fossils will modern-day civilization leave behind? By Eva Frederick, Science News, Jan. 6, 2020 https://www.sciencemag.org/news/2020/01/what-fossils-will-modern-day-civilization-leave-behind The open access paper is: Plotnick, R.E. and Koy, K.A., 2019. The Anthropocene Fossil Record of Terrestrial Mammals. Anthropocene, p.100233. The Anthropocene fossil record of terrestrial mammals https://www.sciencedirect.com/science/article/pii/S221330541930044X?via%3Dihub Yours, Paul H.-
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Spino tooth wear and tear
Mahnmut posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello together, some time ago I bought a nice big Spinosaurus tooth I am quite happy with. I only wonder when its tip got its shape: when the animal was still alive and chewing fish , when the fossil was (partially) in the ground or when it was in the preppers workshop. Any opinions on that one? thanks in advance, J -
Nevermind that the authors got the age wrong by a factor of 1000! They thought it was 500,000 years old but they say Cambrian so I guess it is 500 million years old. https://news.google.com/articles/CAIiEGCPp7KKbJYVK8AnXN7shMsqGQgEKhAIACoHCAowrq6BCzCw9PwCMMjF7gU?hl=en-US&gl=US&ceid=US%3Aen
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Exceptional fossil preservation may need oxygen to form
Oxytropidoceras posted a topic in Fossil News
Exceptional fossils may need a breath of air to form University of Texas at Austin, November 6, 2019 https://phys.org/news/2019-11-exceptional-fossils-air.html https://www.sciencedaily.com/releases/2019/11/191106112109.htm https://www.eurekalert.org/pub_releases/2019-11/uota-efm110519.php Exceptionally preserved Jurassic sea life found in new fossil site by University of Texas at Austin https://phys.org/news/2017-01-exceptionally-jurassic-sea-life-fossil.html The paper is: A.D. Muscente Et Al, Taphonomy Of The Lower Jurassic- 1 reply
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More male than female mammalian fossils in museum collections
Oxytropidoceras posted a topic in Fossil News
Researchers discover more male than female mammalian fossils in museum collections by Bob Yirka , Phys.org https://phys.org/news/2019-09-male-female-mammalian-fossils-museum.html The Quirk of Collecting That Skews Museum Specimens Male. Only two orders of mammals—containing bats, anteaters, and sloths—are biased toward females. Rachel Gutman, The Atlantic, Sept. 11, 2019 https://www.theatlantic.com/science/archive/2019/09/research-specimens-are-mostly-male/597832/ The paper is: Gower, G., Fenderson, L.E., Salis, A.T., Helgen, -
What Fossils Alone Can’t Explain About Dinosaurs When time is measured in 10-million-year blocks, the lines between ecosystems and animals that would never have coexisted can get blurry. Laura Poppick, The Atlantic, August 17, 2019 https://www.theatlantic.com/science/archive/2019/08/paleontology-precision-problem/596176/ Yours, Paul H.
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Taphonomy of Upper Cretaceous dinosaurs, Mendoza, Argentina
Oxytropidoceras posted a topic in Fossil News
Previtera, E., 2019. Taphonomic analysis of saurischian dinosaurs from the Plottier Formation (Upper Cretaceous), Mendoza, Argentina. Andean geology: Formerly Revista geológica de Chile, 46(2), pp.345-367. DOI: http://dx.doi.org/10.5027/andgeoV46n2-3161 http://www.andeangeology.cl/index.php/revista1/article/view/V46n2-3161 http://www.andeangeology.cl/index.php/revista1/article/view/V46n2-3161/pdf Yours, Paul H. -
Burrows, not mangrove roots, Egyptian Archaeoceti taphonomy reinterpreted
Oxytropidoceras posted a topic in Fossil News
The below paper is an interesting reinterpretation of the depositional environment of the Birket Qarun Formation of the UNESCO World Heritage Site Wadi Al-Hitan, also known as either Valley of Whales or Zeuglodon Valley, in the Western Desert of Egypt. The paper is: Gee, C.T., Sander, P.M., Peters, S.E., El-Hennawy, M.T., Antar, M.S.M., Zalmout, I.S. and Gingerich, P.D., Fossil burrow assemblage, not mangrove roots: reinterpretation of the main whale-bearing layer in the late Eocene of Wadi Al-Hitan, Egypt. Palaeobiodiversity and Palaeoenv -
Cerutti Mastodon, California, reinterpreted as modern road construction "kill"
DPS Ammonite posted a topic in Fossil News
News of a new species of mastodon, the Pacific Mastodon, led me to read about another interesting story about the Cerutti Mastodon found in San Diego, California that was about 130,000 years old. Supposedly humans broke its bones with stones before it was buried. Needless to say, there was a great amount of disagreement that humans were in the America’s 130,000 years ago. An interesting article referencing the Cerutti Mastodon was written in 2017 or later. The author suggested that a giant capuchin monkey may have broken the mastodon’s bones. Enter a small, middle age- 4 replies
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Inside out? Ediacaran fossils might represent internal structures, researchers say. At 560 million-years-old, Ediacarans are truly ancient organisms, but do palaeontologists really know what they looked like? Elizabeth Finkel reports. https://cosmosmagazine.com/palaeontology/inside-out-ediacaran-fossils-might-represent-internal-structures-researchers-say The paper is: Bobrovskiy, I., Krasnova, A., Ivantsov, A., Luzhnaya, E. and Brocks, J.J., 2019. Simple sediment rheology explains the Ediacara biota preservation. Nature eco
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