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Found 36 results

  1. Odontaspis reticulata Argentina

    From the album Cenozoic Sharks

    Odontaspis reticulata from the Chubut Province of Argentina. Early Miocene in age.
  2. Odontaspis reticulata Argentina

    From the album Cenozoic Sharks

    Odontaspis reticulata from the Chubut Province of Argentina. Early Miocene in age.
  3. 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.
  4. http://artdaily.com/index.asp?int_sec=11&int_new=114894
  5. Fossil Dinosaurs in Argentina: https://m.phys.org/news/2019-04-scientists-unearth-million-year-old-dinosaur-fossils.html
  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. Prosqualodon redescription

    I forgot, does anyone have a copy of the following paper I keep forgetting: Carlos M. Gaetán (2019). Prosqualodon australis (Cetacea: Odontoceti) from the early Miocene of Patagonia, Argentina: redescription and phylogenetic analysis. Ameghiniana. in press. doi:10.5710/AMGH.21.11.2018.3208. Cheers, Vahe
  9. https://www.france24.com/en/20181102-paleontologists-discover-new-sauropod-species-argentina
  10. 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
  11. avian ethology:nesting behaviour

    dykescolarocoiserrnal.pone.0061030.PDF (about 2,7 MB) Mariela S.Fernandes, Rodolfo S.Garcia, Lucas Fiorelli, Alejandro Scolaro, Rodrigo B.Salvador, Carlos N.Cotaro , Gary W.Kaiser, Gareth Dyke: A large accumulation of Avian eggs from the late Cretaceous of Patagonia(Argentina)reveals a novel nesting strategy in Mesozoic birds Plos ONE 8 (4) e61030.doi 10371/journal.pone 0061030 https://doi.org/10.1371/journal.pone.0061030
  12. https://metro.co.uk/2018/07/09/huge-gentle-giant-dinosaur-size-double-decker-bus-discovered-argentina-7695748/ http://www.dailymail.co.uk/sciencetech/article-5934365/A-dinosaur-big-double-decker-bus-roamed-Earth-200-million-years-ago-unearthed.html
  13. The Dino Project is a scientific, educational and cultural unit of the National University of Comahue and aims to rescue from the rock all the dinosaurs and other animal and plant remains that inhabited the Barreales Lake area 90 million years ago. This is the only Earth Ecosystem of the Upper Cretaceous of South America and it is considered a hole in Geological time to see the past. The field work involves the extraction, preparation, study and exhibition of the fossils found in the same site. On the other hand, it is an objective of the project to disseminate this activity at all levels of society and education in order to learn to value our heritage and the effort involved in carrying it forward. For more info their website http://www.proyectodino.com/ Location north coast of Lake Barreales, in the province of Neuquén Findings include Some Photos provided by Jorge Orlando Calvo Complete manus of Megaraptor namunhuaiquii Several Sauropods have been found including the Titanosaur Futalognkosaurus dukei Vertebrae Now this is a vertebra Another of the theropod dinosaurs represented by a pubis, ileum (bones of the hip), humerus, claw and a dorsal vertebra is Unenlagia paynemili . This carnivore is very important in the evolution of dinosaurs and birds since it represents a true link between both groups. The holotype of Macrogryphosaurus gondwanicus. One of The biggest ornithopod in South America. In addition, more than 300 teeth have been found with different types of "saws" from at least 5 different species of theropods
  14. ...for the Field Museum in Chicago is an impressively large completely cast model of a huge titanosaur. You may remember seeing the David Attenborough BBC documentary back in 2016 called David Attenborough and the Giant Dinosaur (allusions to James and the Giant Peach?) The special covers the discovery, reconstruction and display of a new species named Patagotitan mayorum, a 37 meter long beast (not surprisingly) from the Patagonia region of Argentina. Bones from several individuals were found at the site and it seems that the Field Museum must have purchased a few actual bones to be displayed alongside of the cast model. The cast was made by the same company that created one for the American Museum of Natural History in New York. There, the giant titanosaur is apparently a bit too big for its home in the AMNH and had to be carefully configured to fit into the available space. The main central area with in the Field Museum, known as Stanley Field Hall, has plenty of space for this new cast to stretch out into without feeling cramped. This 122 foot long cast at the Field Museum has been named "Máximo" in reference to it's Argentinian heritage. This space was previously occupied by Sue the (in)famous Tyrannosaurus rex skeleton which was the talk of the town when it finally debuted back in 2000 (10 years after its initial discovery). Sue is moving to her own room up on the upper floor of the museum in an exhibit to open sometime in 2019. They will be making some anatomical changes and modifying the mount to show Sue in a less crouching pose. Unlike Sue (which was a relatively complete skeleton), Máximo is 100% cast. Due to the weight restrictions limiting mounting options, Sue's head was removed (ouch!) and replaced with a properly inflated head cast on the mount that was mostly otherwise composed of actual bones. Sue's head a bit crushed on one side was originally presented in a separate display where visitors could get a closer look at the actual bones. Since this titanosaur will not feature any actual precious bones, the museum is looking at making the cast more accessible (i.e. "touchable") with a ground level display rather than a raised and cordoned-off display stand. This will inevitably lead to a rash of titano-selfies in the coming months. When we visited, the mount had just been completed and whatever stand will go with the completed display had not yet been added. The few actual bones were on a simple display showing approximate placements that was tucked into a forlorn looking corner next to the full cast model. As this work had just recently been completed the new additions did not have the informational displays that will likely accompany this new exhibit in the coming months as the dust settles on this dinosaurian swap-out. The way they mounted the next of this huge titanosaur has it peering into the second floor balcony some 28 feet above. This was intentionally done to give people a close-up look at Máximo tooth-studded "smiling" face. I'm sure people will be hanging over the balcony edge for selfies from this angle. They've already tried to head this off by putting warnings on the ledge at this point cautioning against sitting, standing or leaning out over the ledge but I'm sure it is only a matter of time before someone puts themselves in the running for a Darwin Award for their selfie attempt. I have mixed feelings about this recent Sue-swap which was done this year to coincide with the museum's 125th anniversary. Maybe I'm a purist but I tend to like dinosaur mounts that are (at least partially) composed of actual bones. Understandably, it tends not to be possible to have 100% real fossil bone displays (even from a composite of multiple individuals) but the fact that Máximo is simply the second in a (limited) series of entirely cast bones makes me have to appreciate the display as an (expensive) model rather than as a rare well-preserved actual fossils. The fact that Jeff Bezos or Elon Musk could (conceivably) commission additional copies for their closest friends as ostentatious Christmas gifts this year somehow puts Máximo in a different class in my mind from Sue--maybe it's just me. The non-unique and reproducible nature of Máximo's cast does however allow people to interact more personally with this new huge dinosaur in a way different from the more isolated reverence of Sue's exhibit. I just hope people take away more than just silly selfies from their interaction with Máximo. Here are a few photos of Máximo in his new home. You can see how the mount was staged to allow the perspective from the upper level balcony. You might recognize someone in the second photo who was told that he needed to pose for a selfie with Máximo's left front leg. I've also included photos of the few actual bones which will hopefully receive some interest as well once they are more properly displayed. Cheers. -Ken
  15. Can someone identify this?

    Its like 3 cm tall, found in Chubut province, Argentina
  16. Darwin's Lost Fossils to be Made Public

    Darwin's lost fossils – including a sloth the size of a car – to be made public. Fossils collected by Darwin on his global voyages on the Beagle will be digitally scanned and made available online The Guardian, Maev Kennedy, April 6, 2018 https://www.theguardian.com/science/2018/apr/06/charles-darwin-lost-fossils-including-a-sloth-the-size-of-a-car-to-be-made-public Yours, Paul H.
  17. http://www.dailymail.co.uk/sciencetech/article-5556067/Fossils-badass-Argentine-meat-eating-dinosaur-unearthed.html
  18. Araripesuchus tooth ?

    This tooth was label has a Araripesuchus tooth but does its belongs to one its from Neuquen, Argentina ?
  19. Dinosaur Eggshell ( Saltasaurus ).

    From the album Vertebrates

    Dinosaur eggshell (Saltasaurus) from the Upper Cretaceous of Argentina.
  20. Paper just released that describes the dorsal vertebrae in detail of the titanosaur Dreadnoughtus schrani from Argentina that was described in 2014. If you ever wanted to know what the different areas of a dorsal vertebra were called this gives you more than you ever need. It also gives you relative position in the vertebral column. You will be tested on the pronunciation and spelling of these words Check the scale bar it's 50 cm (appox 20 inches) Complete dorsal vertebrae are very rare especially this well preserved. This discovery gives paleontologist an opportunity to use these specimens to compare against other taxons. It also gives them a better understanding of their position in the sketal structure. https://www.app.pan.pl/article/item/app003912017.html Osteology of the dorsal vertebrae of the giant titanosaurian sauropod dinosaur Dreadnoughtus schrani from the Late Cretaceous of Argentina Kristyn K. Voegele, Matthew C. Lamanna, and Kenneth J. Lacovara Acta Palaeontologica Polonica 62 (4), 2017: 667-681 doi:https://doi.org/10.4202/app.00391.2017 app62-Voegele_etal_SOM.pdfapp003912017.pdf Supplemental Images app003912017.pdf Dreadnoughtus 2014 paper https://www.nature.com/articles/srep06196
  21. I found this paper from 2013. I don't know if this has been posted on the forum before, but I figured it could be pretty interesting for those interested in Theropods. https://www.academia.edu/9863538/Evolution_of_the_carnivorous_dinosaurs_during_the_Cretaceous_The_evidence_from_Patagonia Evolution of the carnivorous dinosaurs during the Cretaceous: The evidence from Patagonia abstract Patagonia has yielded the most comprehensive fossil record of Cretaceous theropods from Gondwana, consisting of 31 nominal species belonging to singleton taxa and six families: Abelisauridae, Noasauridae, Carcharodontosauridae, Megaraptoridae nov. fam., Alvarezsauridae, and Unenlagiidae. They provide anatomical information that allows improved interpretation of theropods discovered in other regions of Gondwana. Abelisauroids are the best represented theropods in Patagonia. They underwent an evolutionary radiation documented from the Early Cretaceous through to the latest Cretaceous, and are represented by the clades Abelisauridae and Noasauridae. Patagonian carcharodontosaurids are known from three taxa (Tyrannotitan, Giganotosaurus and Mapusaurus), as well as from isolated teeth, collected from Aptian to Cen- omanian beds. These allosauroids constituted the top predators during the mid-Cretaceous, during which gigantic titanosaur sauropods were the largest herbivores. Megaraptorans have become better documented in recent years with the discovery of more complete remains. Megaraptor, Aerosteon and Orkoraptor have been described from Cretaceous beds from Argentina, and these taxa exhibit close relationships with the Aptian genera Australovenator, from Australia, and Fukuiraptor, from Japan. The Gondwanan megaraptorans are gathered into the new family Megaraptoridae, and the Asiatic Fukuiraptor is recovered as the immediate sister taxon of this clade. Although megaraptorans have been recently interpreted as members of Allosauroidea, we present evidence that they are deeply nested within Coelurosauria. Moreover, anatomical information supports Megaraptora as more closely related to the Asiamerican Tyrannosauridae than thought. Megaraptorans improve our knowledge about the scarcely documented basal radiation of Gondwanan coelurosaurs and tyrannosauroids as awhole. Information at hand indicates that South Americawas a cradle for the evolutionary radiation for different coelurosaurian lineages, including some basal forms (e.g., Bicentenaria, Aniksosaurus), megaraptorans, alvarezsaurids less derived than those of Laurasia, and unenlagiids, revealing that Gondwanan coelurosaurs played sharply differing ecological roles, and that they were taxonomically as diverse as in the northern continents. The unenlagiids represent an endemic South American clade that has been recently found to be more closely related to birds than to dromaeosaurid theropods. Analysis of the theropod fossil record from Gondwana shows the highest peak of origination index occurred during the AptianeAlbian and a less intense one in the Campanian time spans. Additionally, peaks of extinction index are recognized for the Cenomanian and TuronianeConiacian time spans. In comparison, the Laurasian pattern differs from that of Gondwana in the presence of an older extinction event during the AptianeAlbian time-span and a high origination rate during the Cenomanian time-bin. Both Laurasian and Gondwanan theropod records show a peak of origination rates during the Campanian.
  22. Hello, we are having a difficult time getting to know a quarry we can go for fossil hunting in October. We are from Argentina and will be on vacation to the states. can soneone help us find some? Thank you
  23. Saltasaurus tooth

    From the album Dinosaur teeth

    Sauropod indet. Cretaceous (Campanian-Maastrichtian) Allen Formation Rio , Argentina