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  1. David in Japan

    Shark tooth identification

    Hi TFF friends, Last time I went fossil hunting I found this pretty beaten shark tooth on the surface of a rock lying on the beach. Himenoura formation, Late cretaceous, -85MYA Kumamoto japan. The apex is missing but it is none the less an interesting tooth. At first I thought it was my first Squalicorax tooth but when I looked under magnification I was not able to see any serrations and noticed a nutrient groove and a small cusplet here on the left side of the root in the photo below. After extracting completely the t
  2. Barrelcactusaddict

    Kuji Amber (Tamagawa Fm., ~91.05-85.2 Ma)

    From the album: Fossil Amber and Copal: Worldwide Localities

    “Kuji Amber” Hirono, Iwate Prefecture, Japan Tamagawa Fm. (Kuji Group) ~91.05-85.2 Ma Total Weight: 1.3g Longest Specimen: 10mm Lighting: Longwave UV Entry five of ten, detailing various rare ambers from European, Asian, and North American localities. Studies on this amber, and Japanese ambers in general, are especially fascinating from a pharmaceutical point of view. In early 2012, a particular diterpenoid was extracted from Kuji amber that has been shown to possess powerful anti-allerge

    © Kaegen Lau

  3. Barrelcactusaddict

    Kuji Amber (Tamagawa Fm., ~91.05-85.2 Ma)

    From the album: Fossil Amber and Copal: Worldwide Localities

    “Kuji Amber” Hirono, Iwate Prefecture, Japan Tamagawa Fm. (Kuji Group) ~91.05-85.2 Ma Total Weight: 1.3g Longest Specimen: 10mm Lighting: 140lm LED Entry five of ten, detailing various rare ambers from European, Asian, and North American localities. Studies on this amber, and Japanese ambers in general,

    © Kaegen Lau

  4. A new theropod-related paper is available online: Hattori, S., Kawabe, S., Imai, T., Shibata, M., Miyata, K., Xu, X., and Azuma, Y., 2021. Osteology of Fukuivenator paradoxus: a bizarre maniraptoran theropod from the Early Cretaceous of Fukui, Japan. Memoir of the Fukui Prefectural Dinosaur Museum. 20: 1–82. In this paper, the authors of the 2016 paper describing Fukuivenator assign this genus to Therizinosauria based on the description of previously unrecognized elements in the holotype of F. paradoxus, including parietals, quadrate, ectopterygoid, and additional vert
  5. From the album: Brachiopodes, Shells, corals, sponges......

    Productus sp Hikoroichi Form.Carboniferous Viséen Ofunato city Japan
  6. 2 weeks ago, I surface hunted fossils at my favorite spot in Kumamoto Prefecture, Japan. It was a very hot day of November and as I was alone and had plenty of time, I have been able to return to several spots (same formation though) I do not often go to. As usual, as the places I went are part of a national park, you are not allowed to take fossils directly from the formation however you can still take back rocks that felt from the cliff or which lies on the beach. I first stopped at Kojima's camp site. Kojima is a very small island (the name Kojima means small is
  7. A 30 min english documentary about the cretaceous of japan from the NHK. https://www3.nhk.or.jp/nhkworld/en/tv/scienceview/20211019/2015266/
  8. Hi TFF friends, it's been a while. I hope you're all fine. This week, I explored my favorite place in Kumamoto prefecture (trip report coming these week-end) and found the following fossil. First time I saw such fossil from this location. I have browsed the literature related to this location but I unfortunately didn't find any clues about what this fossil could be. I suspect this could be some kind of fish tooth. In the all the papers I read about this location, I found some mentions of fish material found there but no description or further information.
  9. David in Japan

    Shark cartilage?

    Dear TFF friends, It's been a while since I visited our fossil lovers community. I hope you're all doing well. Few months ago, I went to my favorite late cretaceous spot in Japan. Himenoura formation is a marine formation from the late Cretaceous (Santonian) where ammonites, bivalves, shark teeth, and crustaceans can be found. Last time I went there, I found the following fossil. In is quite small, and at first glance I thought it was some kind of bone fragment or small tooth's enamel negative but after observing it under microscope, I was able t
  10. kris.lyon

    Please help me ID this Fossil

    I saw this fossil for sale in Colorado labeled as a Archaeopteryx (second picture) by it it looks nothing like an Archaeopteryx. I google image searched the picture and the only look alike was on a website for Japanese travel photos (first picture) and I believe it was at a dinosaur museum in Japan. I'll put both pictures below! Please help me identify
  11. Troodon

    New Hadrosaurid from Japan

    You do not see a lot described from Japan so its nice to see this one. . Discovered in the marine Maastrichtian deposits of the Kitaama Formation. Yamatosaurus izanagii https://www.nature.com/articles/s41598-021-87719-5#disqus_thread
  12. Kikokuryu

    Gaudryceras sp.

    Stabilized with Butvar B-76.
  13. Fish fossils off the coast of a Japanese island concentrate rare earth elements. https://www.scientificamerican.com/article/mining-rare-earth-elements-from-fossilized-fish/
  14. Dino9876

    Megamouth shark teeth?

    Hello, I see these shark teeth from an auction. I don't know if they are fossilized or come from a recent animal. Unfortunately the photos are not very good. I still wonder what kind of shark these teeth could have come from. My first idea was Megamouth shark, but teeth of these are of course very rare. On the other hand, it might fit because the teeth are found on Japan's coast and Megamouth sharks are also found there (if there are recent species). Can you help me with the ID? I'm really not quite sure, I've never seen teeth like this before. Thank you and best re
  15. Hello Fossil Friends, Saw this in the news today so thought I’d share: ******************** World's smallest dinosaur egg fossil discovered in Japan Source Link A team of researchers said Tuesday it has discovered the world's smallest dinosaur egg fossil, measuring about 4.5 centimeters by 2 cm, in western Japan. The fossil of the egg, estimated to have weighed only about 10 grams more than 100 million years ago, was found in a stratum dating back to the Early Cretaceous period in Tamba, Hyogo Prefecture, according to the
  16. Oxytropidoceras

    Fossilized fish and rare-earth metals

    Fossilized fish could indicate rich deposits of valuable rare-earth metals by University of Tokyo PhysOrg, June 18. 2020 https://phys.org/news/2020-06-fossilized-fish-rich-deposits-valuable.html Fish fossils become buried treasure. Fossilized fish could indicate rich deposits of valuable rare-earth metals by University of Tokyo, June 18. 2020 https://www.eurekalert.org/pub_releases/2020-06/uot-ffb061720.php The paper is: Junichiro Ohta, Kazutaka Yasukawa, Tatsuo Nozaki, Yutaro Takaya, Kazuhide Mimura, Koichiro Fuj
  17. Chase_E

    Carcharodon carcharias

    From the album: Misc. Cenozoic Specimens

    Carcharodon carcharias.
  18. Two new papers on fossil Balaenidae are available online: Guillaume Duboys de Lavigerie, Mark Bosselaers, Stijn Goolaerts, Travis Park, Olivier Lambert & Felix G. Marx (2020) New Pliocene right whale from Belgium informs balaenid phylogeny and function. Journal of Systematic Palaeontology, DOI: 10.1080/14772019.2020.1746422 Yoshihiro Tanaka; Hitoshi Furusawa; Masaichi Kimura (2020). A new member of fossil balaenid (Mysticeti, Cetacea) from the early Pliocene of Hokkaido, Japan. Royal Society Open Science. 7 (4): Article ID 192182. doi:10.1098/rsos.192182.
  19. Full fossil of beaked whale unearthed from Nagano riverbed By Hiromu Tsuchiya, Asahi Shimbun, April 8, 2020 http://www.asahi.com/ajw/articles/13246254 Yours, Paul H.
  20. New age called the Chibanian named after a site in Japan that records a magnetic pole reversal. This covers a time from 770,000 to 126,000 years ago. Now I have to edit my geologic timeline! https://www.livescience.com/amp/new-geologic-age-chibanian.html
  21. From now on, I will introduce the fossils of Hokkaido here.
  22. Fossil found in Fukui identified as new primitive bird species By Naoki Hirano, The Ashi Shimbun, December 4, 2019 http://www.asahi.com/ajw/articles/AJ201912040008.html Science News http://www.sci-news.com/paleontology/fukuipteryx-prima-07808.html The open access paper is: Imai, T., Azuma, Y., Kawabe, S., Shibata, M., Miyata, K., Wang, M. and Zhou, Z., 2019. An unusual bird (Theropoda, Avialae) from the Early Cretaceous of Japan suggests complex evolutionary history of basal birds. Communications biology, 2(1), pp.1-11.
  23. A news article about the first Early Cretaceous avialan from Japan is available at the following link: https://www.smithsonianmag.com/science-nature/newly-discovered-fossil-bird-fills-gap-between-dinosaurs-and-modern-fliers-180973551/ Fukuipteryx is the first Early Cretaceous non-ornithothoracine avialan to be described from an Asian locality outside China or Mongolia. Since Fukuipteryx has a pygostyle and is recovered as basal to Jeholornis, it is unclear whether some non-pygostylian birds had a pygostyle. Link for original description of Fukuipteryx:
  24. https://phys.org/news/2019-09-hadrosaur-japan-dinosaur-diversity.html https://www.brightsurf.com/news/article/090519491504/a-new-duck-billed-dinosaur-kamuysaurus-japonicus-identified.html
  25. New papers recording new occurrences of fossil Monodontidae are available online: Hiroto Ichishima; Hitoshi Furusawa; Makino Tachibana; Masaichi Kimura (2018). First monodontid cetacean (Odontoceti, Delphinoidea) from the early Pliocene of the north‐western Pacific Ocean. Papers in Palaeontology. Online edition. doi:10.1002/spp2.1244. (describes Haborodelphis japonicus) Pesci et al. (2018). First record of Monodontidae (Cetacea, Odontoceti) in the Mediterranean Basin from the Pliocene sands of Arcille (Grosseto, Tuscany, Italy). Fossilia, Volume 2018: 37-39.
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