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Found 18 results

  1. A new fossil odontocete-related paper is available online: Mariana Viglino; C. Maximiliano Gaetán; José I. Cuitiño; Mónica R. Buono (2020). First Toothless Platanistoid from the Early Miocene of Patagonia: the Golden Age of Diversification of the Odontoceti. Journal of Mammalian Evolution, in press. doi:10.1007/s10914-020-09505-w. Dolgopolis is the first fossil platanistoid known to have relied on suction-feeding rather than raptorial behavior, considering that the xenorophid Inermorostrum and the delphinid Australodelphis are the only extinct odontocetes besides those belonging to Physeteroidea or Ziphiidae that resorted to suction-feeding to capture prey. In retrospect, the feeding behavior of extinct platanistoids wasn't uniform as previously thought, and the description of Dolgopolis on top of so many other extinct platanistoids is another reason why most people don't know that Platanistoidea was once diverse and widespread in the Neogene, only to see its diversity crash to just one genus by the time that humanity came into being.
  2. New Argentine fossils uncover history of celebrated conifer group Francisco Tutella, Penn State University, June 18, 2020 https://news.psu.edu/story/623337/2020/06/18/research/new-argentine-fossils-uncover-history-celebrated-conifer-group Rossetto‐Harris, G., Wilf, P., Escapa, I.H. and Andruchow‐Colombo, A., 2020. Eocene Araucaria Sect. Eutacta from Patagonia and floristic turnover during the initial isolation of South America. American Journal of Botany. https://www.researchgate.net/publication/341278103_Eocene_Araucaria_Sect_Eutacta_from_Patagonia_and_floristic_turnover_during_the_initial_isolation_of_South_America https://www.researchgate.net/profile/Peter_Wilf Shi, G., Li, H., Leslie, A.B. and Zhou, Z., 2020. Araucaria bract-scale complex and associated foliage from the early-middle Eocene of Antarctica and their implications for Gondwanan biogeography. Historical Biology, 32(2), pp.164-173. https://www.researchgate.net/publication/325404218_Araucaria_bract-scale_complex_and_associated_foliage_from_the_early-middle_Eocene_of_Antarctica_and_their_implications_for_Gondwanan_biogeography https://www.researchgate.net/profile/Gongle_Shi Yours, Paul H.
  3. Found in southern chile

    What is it?
  4. Last week I spent ten days visiting Argentina. Most of that time was spent in Patagonia. Argentina does not allow any private fossil collecting, so this wasn't going to be that kind of trip. On our way back from visiting a penguin colony at Punta Tombo we stopped in Trelew whose number one attraction is the Museo Paleontoligico Egidio Feruglio. It primarily features fossils from Patagonia, dinosaurs and mammals, plus Permian age plants, petrified wood, etc. I got to spend a quick hour there and took some photos. Most of the labels were in Spanish and I didn't have time to take notes. Hope you enjoy what I was able to get:
  5. Diaphorocetus redescribed

    A new fossil sperm whale-related paper is available online: Florencia Paolucci, Mónica R. Buono, Marta S. Fernández, Felix G. Marx & José I. Cuitiño (2019) Diaphorocetus poucheti (Cetacea, Odontoceti, Physeteroidea) from Patagonia, Argentina: one of the earliest sperm whales Journal of Systematic Palaeontology DOI: 10.1080/14772019.2019.1605544 Curious to see if anyone has a copy of this paper, because Diaphorocetus along with Idiorophus is one of the earliest sperm whales known in the fossil record.
  6. Pliosaurus from Patagonia

    Hi, Does anyone have copies of the following papers regarding Pliosaurus: Gasparini, Z., and O'Gorman, J., 2014. A new species of Pliosaurus (Sauropterygia, Plesiosauria) from the upper Jurassic of northwestern Patagonia, Argentina. Ameghiniana; 51 (4): 269-283 O’Gorman, J., Gasparini, Z., & Spalletti, L. (2018). A new Pliosaurus species (Sauropterygia, Plesiosauria) from the Upper Jurassic of Patagonia: New insights on the Tithonian morphological disparity of mandibular symphyseal morphology. Journal of Paleontology, 1-14. doi:10.1017/jpa.2017.82 The description of Pliosaurus patagonicus and P. almanzaensis from Argentina shows that Pliosaurus must have been widespread in all seas and oceans.
  7. New titanosaur from Patagonia

    Hi, Is there a copy of the following paper: Leonardo S. Filippi, Leonardo Salgado & Alberto C. Garrido (2019) A new giant basal titanosaur sauropod in the Upper Cretaceous (Coniacian) of the Neuquen Basin, Argentina. Cretaceous Research (advance online publication)doi: https://doi.org/10.1016/j.cretres.2019.03.008Â https://www.sciencedirect.com/science/article/pii/S0195667118304816
  8. https://www.france24.com/en/20190204-dinosaur-defended-itself-with-spiny-backbone-found-patagonia https://paleonerdish.wordpress.com/2019/02/04/introducing-bajadasaurus-pronuspinax/ http://novataxa.blogspot.com/2019/02/bajadasaurus.html
  9. Hi all, are there any sites through Argentinian Patagonia where go catching for fossils? Is it legal in the country? Probably at the airport they will not let me outside with fossils, but it will be a nice experience even if i have to leave them to local authorities or museums Thanks
  10. http://www.dailymail.co.uk/sciencetech/article-5556067/Fossils-badass-Argentine-meat-eating-dinosaur-unearthed.html
  11. Texas Heart Clam

    Hello folks. I was ordering my collection of "Texas Heart Clam". I took a few pictures in the process. All in line. I have doubt about the little one. This one still have fragments of shell. What are those marks? parasites? I hope you have enjoyed it. Good hunt.
  12. Maybe a cetacean

    Hello. I found this piece the other day, and I think it's some kind of vertebra. What do you think? The coin is big, about 1 inch. The surface has small porous. The interior is solid. The weight is about 6 kg = 12 lb. I found it about 250 m above sea level, and 2 km from the coast, in a place with a lot of small marine fossil.Is it a cetacean ?. Thanks!
  13. RG NOOB

    Greetings from Argentina; found my first fossil, I`m pretty sure that it`s a whale epiphysis; but wanted to know if ti is possible to ID the species...? Location : Patagonia, Puerto piramides, Chubut, Argentina https://www.google.com.ar/maps/place/Puerto+Piramides,+Chubut/@-42.586614,-64.2642427,1609m/data=!3m1!1e3!4m5!3m4!1s0xbe02de2db616900f:0x6fe8cad4c2a2c841!8m2!3d-42.5701796!4d-64.2787391 Dimensions : across 12,5 cm height 11 cm width 0,5 cm Thanks
  14. Periodically you see theropod material offered for sale from Patagonia and to a collector that's awesome. Typically its specimens obtained before the embargo laws went into affect from Argentina. My experience in looking at what has been offered is that it's often mis-identified as to locality, age and species. Sellers put commonly known dinosaurs identification tags to their specimen like Carnotaurus with complete disregard to the actual age and locality of where that dinosaur was described. That may simply be the information provided to them but they don't verify it and it's easy to do. The reality is that theropod diversity in Patagonia is huge, over vast collecting areas, several provinces, numerous formations and ages. Understanding theropods from this region is just beginning and little is understood, sound familiar Identification of isolated teeth unless there is something diagnostic about the tooth is virtually impossible. I have a difficult time accepting the notion that local diggers knew all the science around what they were collecting, maintained accurate records and provided detailed information to foreign buyers. It was all about the Peso. A recent publication sheds some light on discoveries and I've attached a couple of images to help with diagnosis of the locality and age of specimens you may see offered for sale. Material from this region is very cool but be careful, don't let emotion take over. Just make sure it's was legally acquired and be prepared to identify it as Theropod indet. and don't be fooled that the name offered is valid. Be happy you're just having the opportunity to acquire such a rare specimen. Evolution of the carnivorous dinosaurs during the Cretaceous: The evidence from Patagonia Fernando E. Novas, Federico L. Agnolín, Martín D. Ezcurra, Juan Porfiri, Juan I. Canale
  15. Oldest Known Nightshade Found in Patagonia

    When did tomatillos start wearing papery jackets? Christian Science Monitor, ‎January 6, 2017‎ http://www.csmonitor.com/Science/2017/0106/When-did-tomatillos-start-wearing-papery-jackets Fossil fruit from 52 million years ago revealed By Helen Briggs, BBC News - ‎Jan 5, 2017‎ http://www.bbc.co.uk/news/science-environment-38511034 Ancient tomato ancestors found in 52-million-year-old Patagonian stone Waterton Daily Times, January 6, 2016 http://www.watertowndailytimes.com/national/ancient-tomato-ancestors-found-in-52-million-year-old-patagonian-stone-20170106 The paper is: Wilf, P., M. R. Carvalho, M. A. Gandolfo, and N. R. Cúneo, 2016, Eocene lantern fruits from Gondwanan Patagonia and the early origins of Solanaceae Science. vol. 355, no. 6320, pp. 71-75 DOI: 10.1126/science.aag2737 http://science.sciencemag.org/content/355/6320/71 Yours, Paul H.
  16. Patagonian fossil leaves reveal rapid recovery from dinosaur extinction event, November 7, 2016 http://phys.org/news/2016-11-patagonian-fossil-reveal-rapid-recovery.html Ancient insect bite sheds light on mass extinction event that killed dinosaurs: Insect damage on fossilised leaves suggest biodiversity recovered quicker in the Southern hemisphere. by Léa Surugue, November 7, 2016 http://www.ibtimes.co.uk/ancient-insect-bite-sheds-light-mass-extinction-event-that-killed-dinosaurs-1590317 outhern Hemisphere bouced back TWICE as fast as the North from the asteroid that wiped out the dinosaurs, Daily Mail http://www.dailymail.co.uk/sciencetech/article-3906280/Southern-Hemisphere-recovered-TWICE-fast-North-asteroid-wiped-dinosaurs.html Fossilized Leaves Reveal How Earth Recovered After Mass Extinction by Jen Viegas, Seeker, November 7, 2016 http://www.seeker.com/fossilized-leaves-reveal-how-earth-recovered-after-mass-extinction-2083544755.html Southern Hemisphere recovered faster from dino strike BBC News, http://www.bbc.com/news/science-environment-37872115 After Dinosaur Extinction, Some Insects Recovered More Quickly, Trilobites Blog, by Nicholas St. Fleur. NYT http://www.nytimes.com/2016/11/08/science/fossilized-leaves-insect-bites-patagonia.html?_r=0 The paper is: Donovan, M. P., A. Iglesias, P. Wilf, C. C. Labandeira, and N. R. Cúneo, 2016, Rapid recovery of Patagonian plant–insect associations after the end-Cretaceous extinction, Nature Ecology & Evolution. (2016). DOI: 10.1038/s41559-016-0012 http://www.nature.com/articles/s41559-016-0012 Yours, Paul H.
  17. Hello! I'm relatively new here, but I've been coming to this site for years to look at the great photos and read the discussions. I started this topic to share some of my own research that's going on right now about mass mortalities of marine invertebrates in Patagonia, Argentina. Over that past couple of years I've been working in Argentina, studying fossils (mostly decapods and mollusks) which were killed en masse by volcanic ash. We found some really interesting things in our first trip to the Valdes Peninsula, and documented that volcanic ash can have a killing effect on marine fauna even hundreds of kilometers away from the eruption! I'm also describing a new species of marine isopod that was found preserved in volcanic ash right now. This work is really exciting to me because there is a huge opportunity for new discovery. I hope to describe the numerous different effects volcanic ash has on marine ecosystems, and how they recover from catastrophic events. The ash also plays a really important role in fossil preservation processes, which I also hope to test and describe. I recently launched a "crowd funding" campaign on a website called experiment.com to help raise funds to go back to Argentina for a more comprehensive study of the mass kill sites we know about. If any of you are interested in learning more about the research, or donating to help support it, you can find a video, and other info at http://www.experiment.com/deathbyvolcanicash. I'm also interested in any comments or thoughts anyone has on this topic. I'm always looking for new field sites which may involve volcanic activity and marine fossils, and my research is also more broadly related to mass mortality events in the fossil record in general, so if anyone has any insight into any of this, please comment! Also, if anyone is in the Cleveland area, I'll be giving a talk to a local fossil club on Saturday, May 7th, so if anyone is interested, let me know!
  18. Hello! I bring to see fossils from Patagonia Argentina , more specifically state of Chubut. They are all found by me and my family to esepcion fly in amber. Thank you for your comments! Shark teeths: stuff: dientes raros: many teeth streak: fish jaw: jaw ray: amber fly: spine of fish: