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Showing results for tags 'Ichnofossils'.
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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From the album: Coprolites
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Massive Quaternary Brazilian Ground Sloth Tunnels - Online Papers
Oxytropidoceras posted a topic in Fossil News
Get Lost in Mega-Tunnels Dug by South American Megafauna By Andrew Jenner, March 28, 2017 https://www.discovermagazine.com/planet-earth/get-lost-in-mega-tunnels-dug-by-south-american-megafauna This Massive Tunnel in South America Was Dug by Ancient Mega-Sloths, BEC Crew, Science alerts, April 1, 2017 https://www.sciencealert.com/this-massive-tunnel-in-south-america-was-dug-by-ancient-mega-sloths Some online PDFs of papers are: Frank, H.T., Buchmann, F.S.C., Lima, L.G., Fornari, M., Caron, F. and Lopes, R.P., 2012. Cenozoic vertebrate tunnels in southern Brazil. Ichnology of Latin America: selected papers, 2, pp.141-158. http://www.ufrgs.br/paleotocas/Frank_et_al_2012.pdf Frank, H.T., Althaus, C.E., Dario, E.M., Tramontina, F.R., Adriano, R.M., Almeida, M.D.L., Ferreira, G.F., Nogueira, R. and Breier, R., 2017. Underground chamber systems excavated by Cenozoic ground sloths in the state of Rio Grande do Sul, Brazil. Revista Brasileira de Paleontologia, 18(2), pp.273-284. http://www.ppegeo.igc.usp.br/index.php/rbp/article/download/10000/9330 http://www.ppegeo.igc.usp.br/index.php/rbp/article/view/10000 Lopes, R.P., Frank, H.T., Buchmann, F.S.D.C. and Caron, F., 2017. Megaichnus igen. nov.: giant paleoburrows attributed to extinct Cenozoic mammals from South America. Ichnos, 24(2), pp.133-145. https://www.researchgate.net/publication/308171281_Megaichnus_igen_nov_Giant_Paleoburrows_Attributed_to_Extinct_Cenozoic_Mammals_from_South_America https://www.researchgate.net/profile/Francisco_Buchmann Buchmann, F.S. Frank, H.T., Ferreira, G.F., and Cruz, E.A., 2016, Evidência de vida gregária em paleotocas atribuídas a mylodontidae (preguiças- gigantes). Revista Brasileira de Paleontologia. v. 19 (2). pp. 259-270 https://www.researchgate.net/publication/307526053_Evidencia_de_vida_gregaria_em_paleotocas_atribuidas_a_Mylodontidae_preguicas-gigantes https://www.researchgate.net/profile/Francisco_Buchmann Frank, H.T., Lima, L.G., Gerhard, N.P., Caron, F., Buchmann, F.S.C., Fornari, M. and Lopes, R.P., 2013. Description and interpretation of Cenozoic vertebrate ichnofossils in Rio Grande do Sul State, Brazil. Revista Brasileira de Paleontologia, 16(1), pp.83-96. https://www.researchgate.net/publication/273975528_Description_and_interpretation_of_Cenozoic_vertebrate_ichnofossils_in_Rio_Grande_do_Sul_State_Brazil https://www.researchgate.net/profile/Francisco_Buchmann Yours, Paul H. -
Looking for ID help. I originally thought the fossils were triticites because I found some chert with definite triticites at the same location. But the fossils in the pictured rock are indeed elliptical shaped from the top view (like triticites), but are circular from the side view. The rock is limestone from Pocahontas County, Iowa. The third through sixth photos are microscopic (~40x). The last photo shows a coral located on the underside of the same rock. Fusinilid? corpoloite? ichnofossil? Or what? Your ID info will be appreciated.
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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 Palaeoenvironments, pp.1-16. The PDF file is at: https://www.researchgate.net/publication/326955395_Fossil_burrow_assemblage_not_mangrove_roots_reinterpretation_of_the_main_whale-bearing_layer_in_the_late_Eocene_of_Wadi_Al-Hitan_Egypt https://www.researchgate.net/profile/Paul_Sander2 The abstract is at: https://link.springer.com/article/10.1007/s12549-018-0337-0 Yours, Paul H. -
crinoid stem, ichnofossils, and maybe a hyolith at Etobicoke Creek?
Monica posted a topic in Fossil ID
Hi all! Yesterday afternoon I visited my local haunt (Etobicoke Creek, Georgian Bay Formation, Upper Ordovician) with the kids, and I found a few items that I'd like to show you: Item #1: long crinoid stem - any ideas as to its identity? Item #2: big piece with ichnofossils - item circled in yellow is ichnofossil "a" and item circled in orange is ichnofossil "b" Item #2a: ichnofossil "a" top view Item #2: ichnofossil "b" top view Item #2: ichnofossil "b" side view Item #3 top: two views of a mineral stain that has the shape of a hyolith - what do you think? Item #3 bottom: crinoid columnal impressions (I think!) so it is fossiliferous rock (I think!) so perhaps the specimen above could've been a hyolith??? Thanks as usual for your help! Monica
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hey all! i was going through some of my stuff & found this pretty cool rock- it’s from anticosti island and has many ichnofossils in the top & bottom- i’m thinking they’re borings. on the bottom i noticed a figure vaguely resembling a circle- from what i can tell, it’s an ostracod. opinions & feedback are very much appreciated, & thank you in advance!!
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Hey everyone I recently heard about a paper on the definition of "Lagerstätte" (see attached); and it did raise an interesting question - "Can a trace fossil site be called a Lagerstätte?" What do you guys think about this? -Christian On_the_definition_of_Lagerstatte.pdf
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I would like some help identifying some trace fossils. These are all from the same site from the "Soldier Summit Fossil Track Horizon" area in the Eocene Green River Formation. My grandson and I collected these for his science fair project, so any insight is welcome. Fossil A is obviously a tail feather. It's length is 55mm. Fossil B has shore-bird tracks, but please notice the insect track in the right side. What kind of insect could have made this? Fossil C and D are different sides of the same rock. For side C, I initially thought that this might be bird tracks, but I they don't look anything like the classic pattern in the sample B. Fossil D is covered with fine lines, perhaps some worm tracks? Close-ups E and F zoom in on these tracks. Close-up E shows a mottled pattern on the left, perhaps an alge mat? On the left, a wavy track. I don't know how a worm could create this pattern. Close-up F shows fine lines.
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Hello there! I'm still in the process of deciding which fossils to put in my new display cabinets, so I'm looking for some identification help, if possible. All of the items pictured were found in the Toronto area (Georgian Bay Formation, Upper Ordovician) along creeks or rivers - please help me identify them if you can! Thanks in advance! Monica Picture #1: A trace fossil, but of what? Someone suggested trilobite tracks, but I don't know - what do you think? Perhaps @piranha can have a look... Picture #2: This may or may not be a trace fossil - I only just noticed it today. It vaguely resembles trilobite tracks to me (cruziana), but I'm definitely not sure...
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New depth limit for deep-sea marine burrows University of Leeds, January 10, 2018 https://www.sciencedaily.com/releases/2018/01/180110080549.htm “Scientists have found fossil evidence of deep-sea marine life burrowing up to eight meters below the seabed -- four times the previously observed depth for modern deep-sea life.” Ancient outcrops give new depth limit for deep-sea burrows http://www.leeds.ac.uk/news/article/4165/ancient_outcrops_give_new_depth_limit_for_deep-sea_burrows The paper is: S. L. Cobain, D. M. Hodgson, J. Peakall, P. B. Wignall, M. R. D. Cobain. A new macrofaunal limit in the deep biosphere revealed by extreme burrow depths in ancient sediments. Scientific Reports, 2018; 8 (1) DOI: 10.1038/s41598-017-18481-w https://www.nature.com/articles/s41598-017-18481-w Yours, Paul H.
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I thought I was joining my husband in his kingdom of Pareidolia when I thought there were mold or trace fossils, which I now know as ichnofossils, on some of my sherds from time to time. I have no idea how long it takes for such fossils to form, and I often don't have a guess as to how old a sherd might be or how long it could have been in the ground or water, but I am changing my mind. I see fossils on my sherds and I'm not crazy (well....)! I hope these examples are photographed well enough for you to see them, too. I'm very curious if this is common and if I can date the sherds according to the fossils.
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More ichnofossils, this time from the Ordovician of the Georgian Bay Fm (Lower member) in Toronto ON. @JUAN EMMANUEL sent them to me. In particular we got wondering about the little bumps all over the 2 pieces in the first pic, and the large 'mound' (or infilled hole) in the last pics. Anyone have any IDs for these or suggestions as to the nature of their formation? Here is the 'mound', with 3 side views.
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Hi all, Came across this, and thought it might interest a few of you: http://interestingengineering.com/these-impressive-tunnels-were-dug-by-ancient-giant-sloths/ Those ground sloths are really my favorite, they're gigantic but still have a cute/gentle look. And they're architectural masters too. Max
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