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Found 289 results

  1. Hi everyone, I was recently offered this Giganotosaurus tooth. I was wondering if there was a way to distinguish it from carcharodontosaurus teeth from the kem kem beds? Or if anyone can share there opinion on this one, thank you.
  2. Scientists campaign for the return of fossils from Ubirajara jubatus, the new Brazilian dinosaur –Science, ksuadmin. The Sentinel, University of Kansas, January 14, 2021 The paper, which has been "removed temporarily," is: Smyth, R.S., Martill, D.M., Frey, E., Rivera-Sylva, H.E. and Lenz, N., 2020. A maned theropod dinosaur from Gondwana with elaborate integumentary structures. Cretaceous Research, p.104686. There might be even more controversy: [dinosaur] The name 'Ubirajara' is not available - Dinosaur Mailing List Yours, Paul H.
  3. Have you ever seen...?

    Hello! I post this topic for pleasant and fun conversation. Have you ever seen dinosaur teeth from these genera? Dilophosaurus Cryolophosaurus Majungasaurus Irritator Masiakasaurus Acrocanthosaurus Stegosaurus Siamotyrannus Alioramus Coelurus Baryonyx Staurikosaurus Alamosaurus Eotyrannus Utahraptor Carnotaurus UK Megalosaurus Ornetholestes Brachiosaurus Eustreptospondylus Morrison ornithopod (Dryosaurus, Camptosaurus, Nanosaurus etc) Indosaurus Rajasaurus Ekrixinatosaurus Afrovenator Neovenator Australovenator Dicraeosaurus Giraffatitan Siamoraurus Megaraptor
  4. Back In Time: Fremont County farmer discovered multiple dinosaur fossils in Garden Park https://www.canoncitydailyrecord.com/2020/11/22/back-in-time-fremont-county-farmer-discovered-multiple-dinosaur-fossils-in-garden-park/ https://www.newsbreak.com/news/2107473763723/back-in-time-fremont-county-farmer-discovered-multiple-dinosaur-fossils-in-garden-park Carpenter, K., 2002. Guide to the major dinosaur sites near Cañon City, Colorado. Trilobite Tails, 19(3), pp.7-17. https://www.researchgate.net/publication/314891708_Guide_to_the_major_dinosaur_sites_near_Canon_City_Colorado https://www.researchgate.net/profile/Kenneth_Carpenter3/2 Yours, Paul H.
  5. Are these gastroliths?

    Hi! My name is Annika. I have these two stones my cousin gave me. He also doesn't know what they are, but could they be gastroliths? If not, what could they be?
  6. Idaho Dinosaurs: They Dug Their Own Graves

    Idaho Dinosaurs: They Dug Their Own Graves Geologists of Jackson Hole Lecture by L.J. Krumenacker Krumenacker, L.J., 2017. Osteology, phylogeny, taphonomy, and ontogenetic histology of Oryctodromeus cubicularis, from the Middle Cretaceous (Albian-Cenomanian) of Montana and Idaho (Doctoral dissertation, Montana State University-Bozeman, College of Letters & Science). Krumenacker, L.J., Varricchio, D.J., Wilson, J.P., Martin, A. and Ferguson, A., 2019. Taphonomy of and new burrows from Oryctodromeus cubicularis, a burrowing neornithischian dinosaur, from the mid-Cretaceous (Albian-Cenomanian) of Idaho and Montana, USA. Palaeogeography, Palaeoclimatology, Palaeoecology, 530, pp.300-311. More dinosaur papers Yours, Paul
  7. Hi all I really think the Hadrosaurs were very cool dinosaurs and not just as a food source for the T.rex. So in celebration of the great beasts please show us your Hadrosaurs material . Hadrosaurs are dinosaurs that are members of the family Hadrosauridae, and include ornithopods such as Edmontosaurus and Parasaurolophus. They were common herbivores in the Upper Cretaceous Period of what are now Asia, Europe and North America. Edmontosaurus annectens Metacarpal V found at the famous Hell Creek Formation... Late Cretaceous Period Montana. The missing one in photo that Frank @Troodon sent me when he kindly identified it for me before I purchased for a real steal. As our village has started to put up their Christmas decorations early to offer some much needed joy , so I made a Santa to Edmontosaurus scale drawing I think it will make a great greetings card and adds a little whimsy. Stay safe and sound Bobby
  8. Your "wish list"

    What is your "wish list"? My wish list, i think is this: 1) Morrison fm Sauropod tooth 2) Acrocanthosaurus (I know that is very, very rare and i will never get one) 3) Troodon tooth 4) Suchomimus 5) Ceratosaur tooth 6) Morrison theropod 7) Dimetrodon tooth 8) Tyrannosaurid tooth 9) Acheroraptor 10) Pliosaur tooth I write only about dinosaurs, reptiles and synapsid because if i will add more clade, is very hard to make the list.
  9. A 12-year-old found a 69 million-year-old dinosaur fossil while hiking with his dad By David Williams, CNN, October 16, 2020 Twelve-year old boy finds dinosaur fossil at Nature Conservancy of Canada Horseshoe Canyon site, October 15, 2020, Calgary, AB Yours, Paul H.
  10. Is it easy to find the size of the animal with a tooth? For example, i have a spinosaurid tooth from morroco 2.75 inch long (approx. 2 cm is root), a large mosasaur tooth about 2 inch, a Carcharodontosaurus 1.94 inch. My estimation: my spino tooth belong to an animal about 7-10 meters long if it is a of the large teeth on this spino mouth, for the carcha i think that came from the middle or the back of the jaw of an animal 5-8 meters long, and the mosasaur from a 7-8 meters long mosasaur, and is a very thick tooth.
  11. dinosaurs are lizards

    I am making a book showing evreyone that dinosauria is part of squamata. You will realize all of you are wrong when it comes to dinosaurs (thats how good it will be), I want to challenge pre concived notions and fill them with new ones. If you want to have a conversation with me that would be great!
  12. What dinosaur does this bone belong to?

    Morrison formation, Jurassic period, grand junction Colorado
  13. Yesterday I received received a PM from Rich @stats to see if I wanted to go collecting with him on Mazon Creek, but I told him that I had to pass since I was going to the zoo with my grandson AJ. Now, if I was just going with my wife to the zoo, I would have been on the creek right now collecting- It was a great day, with great weather and there is no better way to spend a Sunday that with my son and his family. Here are a bunch of pictures of the exhibits, it was great for everyone. Here is a picture of me and AJ. And now a picture of my son Alex and wife Izzy + AJ. Now on with the other pics.
  14. Came across this tooth labeled as an abelisaurus belonging to chinanisaurus barbaricus from the Maastrichtian supposedly found in the phosphate mines of the Ouled Abdoun basin. Looks pretty thick to be abelisaurus and comparable to an extent to some carcharodontosaurus teeth. Is there a way tell the difference or will there need to be more specifics involved.
  15. Dinosaurs' unique bone structure key to carrying weight Trabecular structure different than mammals, birds Southern Methodist University, PhysOrg, August 20, 2020 The paper is: Trevor G. Aguirre, Aniket Ingrole, Luca Fuller, Tim W. Seek, Anthony R. Fiorillo, Joseph J. W. Sertich, Seth W. Donahue. Differing trabecular bone architecture in dinosaurs and mammals contribute to stiffness and limits on bone strain. PLOS ONE, 2020; 15 (8): e0237042 DOI: 10.1371/journal.pone.0237042 Yours, Paul H.
  16. Hi everyone, do you all think this would look better with the cracks filled and fully restored or as is?
  17. From the album Cretaceous

    Hadrosaur folki Broken Dinosaur Tooth Upper Cretaceous Wenonah Formation Mattawan Group Ramanessin Brook Holmdel, N.J.
  18. Dinosaurs

    Last night I was flipping through Amazon Prime and found a Dinosaur documentary that I had not seen yet... https://www.amazon.com/Dinosaurs-Francesco-Invernizzi/dp/B07V3X6L14 ...part way through I recognized one of the paleontologists as our very own, @jpc! I love a good Dinosaur flick and this one was worth watching...enjoy.
  19. 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.
  20. What About Birds ?

    I dont mean to sound so ignorant but ive been watching some dino type shows on TV and I realized a question. On one of the shows a guy was pointing out the KT boundry. Then he goes on to say that below this boundry dinosaurs can be found and that above this bondry no dinosaurs can be found. On another show they were talking about how birds are decendants of the dinosaurs. So, my question is, How can birds have evovled from something that went extinct 65 million years ago? I know there must be a simple answer,,,,, but what the heck is it? RB
  21. I've noticed while my library of fossil books is very small, I have not come across a book about dinosaur fossils that is picture heavy with photographs of dinosaur fossils compared to everything else. Would anyone be able to recommend any picture heavy books that focus on dinosaur fossils (teeth, bones, skeletons, etc) that would make for a good flip through?
  22. Unidentified Dino bone

    Hi, I was wondering if anyone could identify this for me? it was found in the lance formation, and is just over an inch long.
  23. MusicnFossils’ Living Room

    Hello all, I was waiting a while to show my ever growing collection until I finally got this new shelf. I wanted to paint it to look similar to my other shelf, install these neat colour changing lights, organize things and move everything...then take photos! I had stored everything in my bedroom for a while but now everything is front & center for visitors. As has has been made obvious by my many ID posts and couple threads in the, “fossil hunting trips” section, I live in a fossil rich area have access to much land to collect from frequently, so I will use this thread for updates with future finds. I’m very proud to say that much of my collection, mostly the dinosaur stuff, has been found by me rather than been bought, though there is a lot of money invested here. If you would like more or better pictures, info or would like to help me ID anything in this collection that I’m unsure about (I’m severely lacking in physical labels at the moment) don’t hesitate to ask.
  24. Saitta, E.T., Vinther, J., Crisp, M.K., Abbott, G.D., Kaye, T.G., Pittman, M., Bull, I., Fletcher, I., Chen, X., Collins, M.J. and Sakalauskaite, J., 2020. Non-avian dinosaur eggshell calcite contains ancient, endogenous amino acids. bioRxiv 2020.06.02.129999 preprint doi: https://doi.org/10.1101/2020.06.02.129999 https://www.biorxiv.org/content/10.1101/2020.06.02.129999v1 https://www.researchgate.net/publication/341881580_NON-AVIAN_DINOSAUR_EGGSHELL_CALCITE_CONTAINS_ANCIENT_ENDOGENOUS_AMINO_ACIDS https://www.researchgate.net/profile/Evan_Saitta Free pdf: https://www.biorxiv.org/content/10.1101/2020.06.02.129999v1.full.pdf Yours, Paul H.
  25. My “Mesozoic Park”

    Well, I figured that I should start a member’s collection. Sorry for my absence, I was busy with college classes. I did great this semester, and I even won a student leadership award! With that being said, I’m gonna start my collection off with a piece that I acquired for my birthday! My 22nd Birthday is tomorrow (June 14th), and I was strapped for money. My father and grandmother chipped in, and helped me acquire this chromium woodworthia piece from a local rock shop that I frequent! It’s from Arizona, and it only cost $60 USD! I’ll try to be active here whenever I can, as I am exhausted from this semester of college (having to abruptly switch to an online format due to COVID-19). I’ll have to link other threads of my fossils and post pictures of my previous additions to my collection to this thread whenever I have the time!
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