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Showing results for tags 'theropoda'.
Found 43 results
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New Feathered Carnivorous Dinosaur Found in Brazil by Enrico de Lazaro, Sci.News, July 14, 2020 http://www.sci-news.com/paleontology/aratasaurus-museunacionali-08633.html Fossilised foot of a three-toed dinosaur that lived in Brazil 115 million years ago is identified as belonging to a new species that may be a forerunner of today's birds. Daily Mail https://www.dailymail.co.uk/sciencetech/article-8517113/Fossilised-foot-three-toed-dinosaur-lived-Brazil-115-million-years-ago-found.html The open access paper is: Sayão, J.M., Saraiva, A.Á.F., Brum, A.S., Bantim, R.A.M., de Andrade, R.C.L.P., Cheng, X., de Lima, F.J., de Paula Silva, H. and Kellner, A.W., 2020. The first theropod dinosaur (Coelurosauria, Theropoda) from the base of the Romualdo Formation (Albian), Araripe Basin, Northeast Brazil. Scientific Reports, 10(1), pp.1-15. https://www.nature.com/articles/s41598-020-67822-9 Yours, Paul H.
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1-s2.0-S1631068319301824-main.pdf novel information on the endocranial morphology of the abelisaurid theropod Carnotaurus sastrei Mauricio A Cerroni,Ariana Paulina Carabajal
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A ‘Jurassic Park’ icon was so much different in real life
Oxytropidoceras posted a topic in Fossil News
A ‘Jurassic Park’ icon was so much different in real life, BRG_Com https://bgr.com/2020/07/08/dilophosaurus-jurassic-park-study/ Famous Jurassic Park Dinosaur Was More Powerful than Previously Thought, Sci News, July 9, 2020 http://www.sci-news.com/paleontology/dilophosaurus-wetherilli-08620.html The paper is: Marsh, A., & Rowe, T. (2020). A comprehensive anatomical and phylogenetic evaluation of Dilophosaurus wetherilli (Dinosauria, Theropoda) with descriptions of new specimens from the Kayenta Formation of northern Arizona. Journal of Paleontology, 94(S78), 1-103. doi:10.1017/jpa.2020.14 https://www.cambridge.org/core/journals/journal-of-paleontology/article/comprehensive-anatomical-and-phylogenetic-evaluation-of-dilophosaurus-wetherilli-dinosauria-theropoda-with-descriptions-of-new-specimens-from-the-kayenta-formation-of-northern-arizona/39C2921EDC6E951AC9F94A22158CA4E5 Yours, Paul H.-
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Everyone probably knows the theropod distal femur from the Taynton Limestone Formation of Oxfordshire that was illustrated by Robert Plot in 1677 and thought to be from a Roman war elephant or biblical giant, and which was dubbed " humanum"* by Richard Brookes in 1763. However, even though the femur illustrated by Plot (now missing) has often been considered to belong to Megalosaurus, but as noted in Halstead and Sarjeant (1993), this femur might belong to a theropod other than Megalosaurus, as Duriavenator, Magnosaurus, Iliosuchus, and Cruxicheiros co-existed lived in the same time and region as Megalosaurus. *" humanum" was not a binomial, but instead an anatomical label; see Halstead and Sarjeant (1993). Halstead, L. B.; Sarjeant, W. A. S. (1993). humanum Brookes - the earliest name for a dinosaur. Modern Geology 18: 221–224.
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caen7-18703-1.pdf Published: 10 January 2018 Reevaluation of the Dentary Structures of Caenagnathid Oviraptorosaurs (Dinosauria, Theropoda) Shuo Wang, Qiyue Zhang & Rui Yang Nature Scientific Reports volume 8, Article number: 391 (2018) form the abstract: "The 3D images of dentary interior spaces suggest that while tooth reduction progresses, the empty alveoli are partially modified into structures accommodating blood vessels that nourish the rhamphotheca, probably representing a functional compensation for the insufficient blood supply in toothed jaw bones. Comparisons are made with Sapeornis,Limusaurus and recent Pavo
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- oviraptosaurs
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link Reassessment of a juvenile Daspletosaurus from the Late Cretaceous of Alberta, Canada with implications for the identifcation of immature tyrannosaurids Jared T.Voris, Darla K. Zelenitsky, François Therrien & Philip J. Currie NATURE Scientific Reports | (2019) 9:17801 | https://doi.org/10.1038/s41598-019-53591-7
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Tooth wear and microwear of theropods from the Late Maastrichtian Marılia Formation (Bauru Group), Minas Gerais State, Brazil Carlos Roberto A. Candeiro, Philip J. Currie, Caio L. Candeiro and Lılian P. Bergqvist Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 106, 229–233, 2017 candeircurriedinosaattriboldentittooth_wearcretac_theropods_maastrichtianmminasgeraisbrazil.pdf
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bsgf_2018_189_4-6_170015.pdf BSGF - Earth Sciences Bulletin 2018, 189, 15 Large-sized theropod Spinosaurus: an important componentof the carnivorous dinosaur fauna in southern continents during the Cretaceous Carlos Roberto A. Candeiro, Lívia Motta Gil and Pedro Ernesto Pontes de Castro
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LINK about 4,5 MB New megaraptorid (Dinosauria: Theropoda)remains from the Lower Cretaceous Eumeralla Formation of Cape Otway, Victoria, Australia Stephen F. Poropat, Matt A. White, Patricia Vickers-Rich & Thomas H. Rich Journal of Vertebrate Paleontology, 39:4, e1666273, Tetanurae sensu Gauthier: "includes birds and all other theropods that are closer to birds than they are to Ceratosauria"
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- eric the red west site
- manual ungual
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Mechanisms of soft tissue and protein preservation in Tyrannosaurus rex Elizabeth M. Boatman, Mark B. Goodwin, Hoi-Ying N. Holman, Sirine Fakra,Wenxia Zheng, Ronald Gronsk & Mary H. Schweitzer NATURE Scientific Reports | (2019) 9:15678 | https://doi.org/10.1038/s41598-019-51680-1 natu about 9 MB
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Hey everyone, I recently came across this fossil online. It was listed as a metatarsal joint fragment, which to me checks out, but the person further identified it as a Dromaeosaurid [though they didn't specify based on what characters] and tentatively assigned it to Dakotaraptor based on size. Now I was wondering: Can remains this fragmental even be reliably distinguished from the other small- to medium-sized theropods in Hell Creek? The fossil was found in Hell Creek deposits in Wyoming [no info on the exact location], measures 30.9 x 27.5mm [not specified along which sides], and weighs 252 grams. Thank you for any input on this!
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ID requested: Triassic Bull Canyon Formation microfossil teeth (Norian Age)
ziggycardon posted a topic in Fossil ID
Hi! I recently aqcuired quite a lot of "microfossils" to kick off my Triassic collection, as I personally find it one of the most interesting time periods and while I am aware possibly not all of them are ID'd correctly I just wanted to get some nice fossils from this time period regardless of their ID's. All the fossils I acquired are from the Bull Canyon Formation, Dockum Group, San Miguel County, New Mexico, USA (Norian age) But I myself am not very knowledgeable yet in this material as I just started my collection but I am aware that some if not most of the ID's on these fossils given by the seller might be wrong as everything I read about the Bull Canyon formation says that the formation isn't that well discribed yet. I tried to make the photo's as good as I could, but it wasn't always easy given their extremely small size, so I hope the quality is good enough to work with. So I am kinda hoping is someone here on the forum would like to give it a try to see if he/she could confirm or disprove given ID's. Thank you in advance! The first set of 2 teeth were listed as the Phytosaur "Pseudopalatus" teeth which after doing a bit of research is considered a junior synonym for "Machaeroprosopus" The next collection of 3 teeth were listed as the Pseudosuchian "Revueltosaurus" The next tooth was listed as a "Theropod indet" tooth, and I know there are at least 2 species of theropod present at Bull Canyon, a Coelophysid called Gojirasaurus and a herrerasaurid called Chindesaurus. But I am not even sure whether this tooth is dinosaurian or not. The next set of teeth were listed as "Arganodus" lungfish teeth And the final tooth was listed as a "Sphenodont" (Rhynchocephalia indet.) tooth with affinities to Clevosaurus (which is found in Nova Scotia, Great Britain and China) -
From the album Dinosaurs and Reptiles
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From the album Dinosaurs and Reptiles
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From the album My Collection
Allosaurus sp. Morrison Formation Upper Jurassic Moffat County, Colorado Size: 6cm -
here Megalosauripus transjuranicus ichnosp. nov. A new Late Jurassic theropod ichnotaxon from NW Switzerland and implications for tridactyl dinosaur ichnology and ichnotaxomy Novella L. Razzolini1, Matteo Belvedere2*, Daniel Marty2, GeÂraldine Paratte2, Christel Lovis2, Marielle Cattin2, Christian A. Meyer3 Citation: Razzolini NL, Belvedere M, Marty D, Paratte G, Lovis C, Cattin M, et al. (2017) Megalosauripus transjuranicus ichnosp. nov. A new Late Jurassic theropod ichnotaxon from NW Switzerland and implications for tridactyl dinosaur ichnology and ichnotaxomy. PLoS ONE 12(7): e0180289. https://doi.org/10.1371/journal. pone.0180289 Editor: Anthony Fiorillo, Perot Museum size: 16,3 MB
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Found this rather interesting diagram in the Currie & Longrich (2009) paper describing Hesperonychus. The diagram shows outlines of several carnivorous theropods from the Dinosaur Provincial Park assemblage, to illustrate the size & morphological range. I thought some people might like to see this @Troodon @Canadawest @Paleoworld-101
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Hey everyone Would anyone here know of the most recent and up-to-date cladogram for the entire Theropoda? In what paper does it appear in? Thanks for the help. -Christian
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Is it a raptor claw?
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Hi everyone, I am new to fossils and have got hold of a Tyrannosaurus Rex from someone I know. The tooth was found in Hell Creek Formation, Faith, South Dakota USA and is 2.5 inches in length and the teeth itself is really heavy (pics attached). Let me know if you need me to take clearer photos of serrations as it is quite hard as my camera's macro focus doesn't work very well. As you can see from the pics this teeth has some surface wear to the enamel and serrations... Serrations worn may have been from feed wear. Please can you help me identify if its from the Tyrannosaurus Rex as opposed to one of the members like the Nanotyrannosaurus or Carcharodontosaurus? Thank you! Jai
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I recently received as a gift this very small theropod tooth fragment from Morocco. I labeled it as Theropod indet., but I'm searching for a possibly more specific ID. In my opinion it may be a 2 cm broken tip of a small tooth from a Carcharodontosaur, but I also thought of the Abelisaur possibility. I tend to ignore the relatively unknown Deltadromeus and the hipothetical dromaeosaur, given the lack of good material, but I'm open to suggestions. Here you can see two focus photos of the serrations I took with a small digital microscope. As you see, there is a slight difference between the two sides. Still001.bmp Still004.bmp
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FumegtCORRECTEDPROOF (1).pdf given the roster of authors and the source publication:HIGHLY recommended/about 2,9 Mb One new avimimid named figs 1 & 12 are a hoot, and pretty useful. Cranial & postcranial material ,BTW
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xinxuxiaolsmallestdinosazhaoianusmicrorapnaturezhonghetopost200010b4c14c3.pdf the other paper on this species(Hwang/Norell) is ,naturally,in Fruitbat's Library,possibly in some others as well salient points(or:"things you might want to remember about this article")(apart from osteological details): edit,hours later:possible repost,because I just noticed this one in Fruitbat's Library. Joe,i feel i owe you an apology. note Maniraptora (GAUTHIER): I posted the Gauthier,a very influential cladistic paper,a while back Note 2: "Archaeoraptor" turned out to be forged
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Don't forget to watch!It starts just when the Attenborough doc on the Lyme Regis ichthyosaur ends on Beeb one.Apologies if repost
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Kats Looking forward to the dental microwear analysis already
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