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  1. A short post today, just wanted to upload this interesting Rhizocorallium (?) I found on my most recent fossil hunting trip! It’s still the dead of winter here in Saskatoon, but we had a warm snap recently and I was able to hike out to a local glacial silt exposure and found it. Hoping to return to this site soon and hopefully find more!
  2. Hello, I recently visited this road cut in west georgia and found this 4ft long shrimp burrow that I believe was made by a crustacean. I also found this possible scallop pecten sp. fossil. I will attempt to get the fossil out intact later this week.
  3. Dear all, It was difficult, very difficult to wait with posting, since I am very, very excited about this fossil find. However, I also wanted the Dutch magazine version to come out first. Well, it finally did this Tuesday, so here is some info in English, along with a couple of the figures. During a visit to the Piesberg near Osnabrück (Germany) in 2010, I found a stem fragment of Calamites decorated with strange, elongate-oval structures [Fig. 1]. While those features were unusual and quite remarkable, it proved difficult to find information about them and the fossil consequently went into my collection as unidentified. Last January, however, I stumbled upon a research paper that could shed light on the matter. The elongate-oval structures turn out to be one of the oldest-known examples of endophytic oviposition, i.e. egg-laying inside plant tissue, by insects. Fig. 1. The fossil specimen is atypical in several respects [Fig. 2]. The stem fragment doesn’t show the longitudinal ribs one usually sees on the internodes of Calamites. This is because we are looking at a preservation of the epidermis (outer layer of the stem), not at a cast of the central pith, which are more commonly found. Fossils of the epidermis (sometimes referred to as Calamophyllites) typically have internodes with a smooth surface (though it may be lightly striated or wrinkled), leaving few diagnostic features. Nonetheless, due to the presence of a characteristic nodal line with large, circular branch-scars [Fig. 2, shown on schematic in green], the fossil fragment can be identified as Calamites (subgenus Calamitina) with reasonable confidence. Below the nodal line with branch-scars, about eight elongate-oval structures can be observed [Fig. 1]. They are all orientated roughly parallel to the axis of the calamite stem and vary in length from 6 to 16 mm. A foreign nature with respect to the plant tissue is suggested by the gümbelite film in which the epidermis is preserved (gümbelite is a hydromuscovite and responsible for the well-known silver-grey colour of the fossils from the Piesberg). Note how this thin film of mineralization does not extend across several of the elongate-oval structures, which may indicate that the plant tissue there is either missing or damaged. Their exact origin, however, remained a mystery to me. Until recently. Fig. 2. While looking for information on some Carboniferous localities in France, I happened upon the research article ‘Earliest Evidence of Insect Endophytic Oviposition’ by Olivier Béthoux et al. (2004). The paper describes insect egg-laying structures, called oviposition-scars, found on two stem fragments of Calamites cistii from the Upper Carboniferous (Stephanian B/C) of Graissessac, Southern France. These scars are elongate-oval structures, orientated parallel to the axis of the stem, occurring on a preservation of calamite epidermis [see their Figures 1 and 2]. Careful preparation of three of these scars yielded small spherical cavities, which the researchers interpreted as imprints of the eggs themselves [see their Figure 2b]. The oviposition-scars from Graissessac vary in length from 5 to 38 mm and are surrounded by a thin film of organic material [see their Figure 2c]. Given the strong resemblance with the Piesberg-material, it didn’t take long to make the link with the mystery markings I found years earlier. Now, after confirmation by email from Olivier Béthoux and in person from Han van Konijnenburg-van Cittert, I can with reasonable certainty say that some sort of Carboniferous insect has laid its eggs in the calamite stem I found in the Piesberg quarry. This type of trace fossils is quite rare, so I am very happy I brought this one home. As a nice bonus this specimen comes from the Westphalian D, and is thus somewhat older (about 4 million years) than the published material from Graissessac (Stephanian BC), which is still cited as the oldest occurrence in recent literature. So you can really say this specimen from the Piesberg is one of the oldest examples around! Hope this was as fun and informative as this fossil has been for me, Tim
  4. From the album: Steinbruch Piesberg (Osnabrück, Germany)

    Note specimen also contains Megaovoidus compactus-type oviposition scars.

    © T.K.T. Wolterbeek

  5. From the album: Steinbruch Piesberg (Osnabrück, Germany)

    Note specimen also contains Megaovoidus foveolatus-type oviposition scars.

    © T.K.T. Wolterbeek

  6. From the album: Steinbruch Piesberg (Osnabrück, Germany)

    Note specimen also contains Megaovoidus foveolatus-type oviposition scars in top left corner of image.

    © T.K.T. Wolterbeek

  7. From the album: Steinbruch Piesberg (Osnabrück, Germany)

    Note specimen also contains Megaovoidus compactus-type oviposition scars.

    © T.K.T. Wolterbeek

  8. 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.
  9. Another day of great finds in Saskatoon! This time, some trace fossils. With my wonderful collaboration with the University of Saskatchewan's Museum of Natural Sciences still continuing, recently I have been very lucky to make multiple trips out to a beautiful site just outside the city of Saskatoon where massive deposits of glacial lake silt are exposed. This silt produces pristine grass and other plant fossils in abundance (I'd like to make a post about them soon as well), but also seems to be teeming with various invertebrate trace fossils. All are very small (under 1 centimetre wide). I've attached some of my best pictures below. 1 - 6: Overlapping Planolites sp. closeups 7 - 11: Edaphichnium sp. 12 - 14: Taenidium sp. closeups 15 - 16: Taenidium sp. wide shots 17: Taenidium sp. closeup
  10. Scottnokes2015

    Fossil worm burrows

    Hi all I found this today on rt51 between Anna and Carbondale in southern Illinois. Can anyone tell me if I'm right thinking they are work burrows or something else Thank you
  11. Below is a delightful enigmatic fossil from Ireland in an open access paper. Maybe, someone in this forum knows where more can be found. Murray, J., MacGabhann, B.A., Doyle, E., Mángano, M.G., Tyrrell, S. and Harper, D.A., 2023. An enigmatic large discoidal fossil from the Pennsylvanian of County Clare, Ireland. Palaeoworld. Yours, Paul H.
  12. Scientists Are Perplexed by Mysterious Holes They Keep Finding on The Ocean Floor Fiona MacDonald, Science Alert, July 29, 2022 The Case of the Mysterious Holes on the Seafloor NOAA Ocean Exploration Updates, July 27, 2022 Open access paper. Vecchione, M. and Bergstad, O.A., 2022. Numerous sublinear sets of holes in sediment on the northern Mid-Atlantic Ridge point to knowledge gaps in understanding mid-ocean ridge ecosystems. Front. Mar. Sci., 31 January 2022 Sec. Deep-Sea Environments and Ecology. https://doi.org/10.3389/fmars.2022.812915 Yours, Paul H.
  13. Please could someone help in answering whether or not the attached images is a fossil of some kind. This was found on a beach near the Lake District while I was away for a few days and it had caught my eye , looked somewhat intriguing. If someone could help in proving me an answer that would be great. Much appreciated.
  14. A recent trip to a Randolph Co., WV (Foreknobs Formation) locality was loaded with trace fossils including numerous Bifungites and Psammichnites biseriatus. There are several undetermined specimens as well. If anyone has any info about the undet. specimens or the species of Bifungites I would appreciate the extra information.
  15. Hi! Looking for help with IDs & also What is this type of fossil called (counter-impression? cast?). Specimen from Crane Hill, Alabama. Thanks for looking Pics 1-plate overview- several potential invertebrates? 2- Potential invertebrate? Some of my newbie guesses: Trilobite (side view) Eurypterid- can’t find definitive info about if locale only had the giant type Crinoid (eg saggital view) Bryzoan Gooseneck barnacle- not sure when these appeared 3- same critter, different angle 4-other invertebrates? 5-stellate shaped imprint? 6-another area of plate showing black ‘spots’ 7-black ‘spots’ look angular, maybe cubic) on high power. No idea if or how this helps, but I wanted to see if it was mold (seems less likely). Included pic for fun (apologies for the quality).
  16. The world's oldest fossilized forest is in Greene County. It needs saving. Roger Hannigan Gilson, Times Union, Aug. 5, 2021 The world’s oldest known fossil forest has been discovered in a quarry in upper New York state By Kelly Murray, CNN, December 20, 2019 The open access paper is: Stein, W.E., Berry, C.M., Morris, J.L., Hernick, L.V., Mannolini, F., Ver Straeten, C., Landing, E., Marshall, J.E., Wellman, C.H., Beerling,D.J. and Leake, J.R., 2020. Mid-Devonian Archaeopteris roots signal revolutionary change in earliest fossil forests. Current biology, 30(3), pp.421-431. open access Yours, Paul H.
  17. Tidgy's Dad

    Wheeler Shale Mysteries.

    I was recently sent some Wheeler Shale material from the Antelope Springs area of Utah, Middle Cambrian age. Thanks to my good friend Debra @Paleome It's all rather splendid stuff, not the usual Elrathia kingii or Itagnostus interstrictus, but a selection of wonderful more unusual things. But what about this one? A trace fossil of a burrow? Some sort of sponge or algae? Any help will be greatly appreciated, as always. Thank you. The inside of the object is an orange brown colour, while the outside and surrounding regions are sort of beige. It reminds me of some of the staining around fossils where bacteria have done their work of decomposition and left their waste behind as iron sulphides etc. Snake's head? Lots of little black crystals. Pyrite ? This is the inside of the 'burrow' and the divide between the object and the staining : The 'stained' area : Join between stained area and ordinary shale : Looking down into the tube ;
  18. First of all I want to make it clear that I know what are trace fossils an I know the difference between fossils and trace fossils, but I feel like I am missing something. In a few posts here on the forum I saw people saying things like "this is not a fossil, maybe a trace fossil" and things like this and I do understand that regular fossils give more information but can anyone please explain to me why it seems like trace fossils are worthless compared to regular fossils?
  19. Newly discovered fossil named after U of A paleontologist By Andrew Lyle, Univeristy of Alberta Research News, January 26, 2021 https://www.ualberta.ca/folio/2021/01/newly-discovered-fossil-named-after-u-of-a-paleontologist.html https://www.eurekalert.org/pub_releases/2021-01/uoa-ndf012621.php https://www.sciencedaily.com/releases/2021/01/210127093217.htm The paper is: M. Ryan King, Andrew D. La Croix, Terry A. Gates, Paul B. Anderson, Lindsay E. Zanno. Glossifungites gingrasi n. isp., a probable subaqueous insect domicile from the Cretaceous Ferron Sandstone, Utah. Journal of Paleontology, 2021; 1 DOI: 10.1017/jpa.2020.115 Yours, Paul H.
  20. GABRIEL.P

    Oligocene fossils ID

    .These fossils are from Romania. They look like crustaceans ichnofossils. If these Eocene or Oligocene fossils are really traces of crustaceans then what genus did make them? If you think that you can identify them write your opinion here. Thank you very much.
  21. Darbi

    Concretionary?

    From my previous trip to Ellsworth County, Kansas and it's located in Dakota formation, Cenomanian. It appeared as almost like vertebrae but I'm sure it's not verts. Is it by chance some form of ichnofossil? @jpc thinks it's concretionary. No disrespect to him, he's the only one who offered his opinion and I would like to know if anyone else have a different opinion.
  22. I found these that resembles burrow or root cast in Ellsworth county, Kansas, USA from my previous trip. The formation these came from are most likely Kiowa formation/Kiowa Shale and the age is Albian. Here's the link to my previous trip. I'm just catching up with the prepping and sorting my fossils from my previous trips. I am wondering if it is some sort of ichnofossils. Is it burrow, root cast, or something else? Also, is it possible for it to be from geological origin rather than a true ichnofossil? This one is the largest I found. The center is poorly cemented sandstone and can be easily brushed off with a toothbrush while the outside layer is hard. Notice the winkles around the interior bend. The measurement is in inches (I know I need to get a metric system badly, my apologies!)
  23. ricardo

    Coprolite

    From the album: Coprolites

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