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Found 54 results

  1. 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: https://www.nature.com/articles/s42003-019-0639-4
  2. 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
  3. Paper request

    Does anyone have a copy of this Japanese paper? M. Murata. 1969. Molluscan fauna of the Toyoma Formation (Late Permian). Saito Ho-on Kai Museum of Natural History Research Bulletin 38:1-22 http://fossilworks.org/?a=taxonInfo&taxon_no=194381 I am trying to identify a Euphemitopsis gastropod. I need any photos and descriptions of Euphemitopsis kitakamiensis. Thanks for you help, John @David in Japan
  4. Last weekend was almost surreal; I've always been looking to go hunting for ammonites at some point, but the opportunity finally arose while I visited Hokkaido, Japan last week. Ammonites from Hokkaido have always been captivating; they definitely represent some of the best the Asian continent has to offer, and are also known to produce the biggest in the continent. In the far north of Hokkaido, iridescent ammonites could be found, while in the central region, heteromorphs are more common. In very rare occasions across the island, titanic ammonites are lifted out of the streams. On the 13th of July, my first day in the Hokkaido Prefecture, I met up with a local friend in Sapporo to go hunting. He's had quite a few years of experience, and is very knowledgeable about the ammonites of Hokkaido. After a few hours of driving, we went off the road and into the Hokkaido wilderness to search for ammonites. Not long after our arrival at the creek, we started finding clues of ammonite-bearing rock.
  5. Mukawa-ryu is a new hadrosaurid dinosaur.

    Small news from Japan: yesterday, Pr Kobayashi presented at the japanese paleontological society, his work on an hadrosaurid dinosaur found few years ago in hokkaido and nicknamed Mukawa-ryu. According to him, it would be a new species. The 8th new dinosaur species found in Japan. Name will be released soon with the publication. http://www.asahi.com/sp/ajw/articles/AJ201906190084.html
  6. Late Cretaceous marine vertebrate's bone

    Hi TFF friends, how are you? I would like to have your opinion concerning the following fossil. It's a bone I found a while ago in the Himenoura formation, Santonian (Kumamoto Japan) and I forgot until I decided to clean my drawers. It has a quite distinctive shape and make me think to a sea turtle bone, a paddle or an ulna maybe. What kind of bone do you think it is? Any ID? I am not looking for the ID, I just would like to know what kind of bone it is.
  7. Does anyone have a copy of the paper "Cetotheres from the early Middle Miocene Bihoku group inShobara District, Hiroshima prefecture, West Japan"? I know the paper is too big to upload, but I wanted sections of the paper that describe Hibacetus, Parietobalaena yamaokai, and Diorocetus shobarensis because no one has had the chance to place Hibacetus in a phylogenetic context.
  8. TFF friends, How are you? It's been a while i post here although i still read almost daily posts on the forum. Last month on the 30 and the 31th, i had the opportunity to make a 2 days field trip to the yamaguchi prefecture with the association of the Goshoura Cretaceous Museum's friends. We spend 2 days there discovering the local geology and history with paleontologists friends. Let me share with you this experience. First day. We left kumamoto at 7 in the morning and drove for about 3 hous to our first destination called Mine. Around the city of Mine and particularly on the northern part of the city can be found the toyoura formation. It is a clastic sediment marine formation that formed during the sinemurian-bathonian period. This formation formed the same way Holzmaden formed and a lot of very well preserved marine organisms such as bivalves, ammonites, belemnites and plants can be found. We first explored a small river without much success. While everybody found plant fragments, i found 2 nice belemnites. I read that belemnites were pretty rare and that only one specie was described from this formation so i believe they are Acrocoelites mantanii from the megateuthidinae sub-familly. We found only few fossils there but it was a great occasion to enjoy our meal under a japanese cherry tree, symbol of the japanese spring. We then followed the stream until the main river where we search the river bed for ammonites. We found some nice specimens (Dactylioceras, Cleviceras and Protogrammoceras) and some plants material (i love the coloration) but we had to leave quickly the river bed as the water level rose-up in a blink of an eye. Weather was good but where we were but you never know what happen upstream. One cannot be too careful. We leaved the field and were about to drive to the Hotaru Museum when somebody told us by inadvertancy that the older part of the parking lot was filled with fossiliferous limestone from the Akiyoshidai locality. We didn't have to think twice and went through all the gravel in hope to find carboniferous fusulinas, brachiopods, and corals. We spend 30 minutes there and were about to leave when we noticed tortoise bones were here and there, lying on the floor. Do i have to explain you what followed? TREASURE HUNT! We finally left the place for the hotaru museum. It is a small museum dedicated to the fireflies but part of the exhibit contained also fossils. Here some pictures. After the museum, we checked-in at the hotel and had a rests with well-deserved beer, some card trick and a lot of fossils conversations. It is being late here so i will post the next post tomorrow. I hope you have enjoyed this one. David.
  9. Shrine of the Japanese trilobites

    Stocker, C., Williams, M., Oji, T., Tanaka, G., Komatsu, T. and Wallis, S., 2019. Spirits of Yokokurayama: shrine of the Japanese trilobites. Geology Today, 35(1), pp.15-19. https://onlinelibrary.wiley.com/doi/full/10.1111/gto.12255 https://www.researchgate.net/publication/330640693_Spirits_of_Yokokurayama_shrine_of_the_Japanese_trilobites Yours, Paul H.
  10. Here is the article but as it is written in Japanese, I will translate it roughly. https://this.kiji.is/461667067532395617?c=92619697908483575 Japanese oldest dinosaur remains have been found in Yatsushiro. 2 days ago, the professor Naomi Ikegami from the Mifune Dinosaur Museum has revealed at the Japanese paleontological society annual meeting the discovery of the oldest remains of a Japanese dinosaur. The fossil (a 8cm long, 4cm wide rib) has been found in Kumamoto prefecture, Yatsushiro city (near Sakamoto village) by a 65 years old former teacher named Mr. Murakami in 2014. It was discovered during a survey conducted by the Mifune Dinosaur Museum and recovered from the Kawaguchi formation. The Kawaguchi formation is a 40 km wide early cretaceous formation (- 133Myo, Hauterivian) composed mainly of brackish strata, which yield abundant brackish conditional molluscus fossils, and intercalates shallow marine strata, which yield marine conditional molluscus fossils. According to the professor Ikegami, as the elliptical cross section of the bone is long and thin and as the width of the abdominal side spreads toward the tip, it matches the characteristics of a theropod's rib. It was estimated that this rib fragment would be part of a 8 to 10 meter long dinosaur. The fossil, the first of its kind found in Yatsushiro has bolstered hope to find new dinosaur localities in the Kumamoto prefecture which already the richest in Japan. The specimen will be show to the public at Mifune Dinosaur Museum from the 29th of January.
  11. Active fossil hunters living in Japan

    Hi guys, how are you? Lately I saw, that new members from Japan joined us and I'd like to say that it is a rejoying news. Unfortunately, I also noticed that those members tend to disappear really quickly or to be shy (and or busy which is 100% understandable and logic if you work and live in Japan). As we are a very small community in Japan, I would like to make a kind of census to know who is still active, where do you live (your prefecture only is enough) and why not what you are collecting here in Japan. This kind of census would also be helpful to put in contact members from the same area to organize fossil hunt and exchange tips about fossil hunting in Japan. What do you think?
  12. Recently, I visited a special exhibit on fossils from Hokkaido, which was held in Tokyo (only in Japanese: https://dep.chs.nihon-u.ac.jp/museum/exhibition.php?l=3&r=181010-125701 ) Here are some photos.
  13. Greetings all! I recently took a trip to a museum in Kitakyushu Japan! This museum was huge, the museum is called the North Kyushu Municipal Journey Of Life Museum and it’s address is: 2 Chome-4-1 Higashida, Yahatahigashi-ku, Kitakyūshū-shi, Fukuoka-ken 805-0071, Japan.
  14. 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. Denebola and Bohaskaia were long the only described fossil monodontid species from the pre-Pleistocene, but Haborodelphis and the new monodontid skull from Tuscany shed new light on the distribution of monodontids.
  15. Hi TFF friends, how are you? I am great, thank you for asking Yesterday I had I went to my favorite late cretaceous spot after an almost 3 month long forced break. So I decided to hunt all day long and went to few different spots with quite a good haul ( for me at least). First I went to an old Quarry in Kumamoto were the middle part of the Himenoura formation is visible. I hunted there few times in the past years and found a lot of ammonite's aptichii, Inoceramus and plants fossils. One year ago, the site was black and there was no sign of vegetation but as time goes, vegetation grows and I had to go through a meter tall vegetation to access to the place. It was a good occasion to have a look flowers : and struggle with "バカ”'s seed, litterally meaning idiot in japanese (called beggar's ticks in english). Here is a picture of the formation at the quarry. I have been able to find there nice Glycymeris amakusensis and a very unusual plant fossil.
  16. http://www.asahi.com/ajw/articles/AJ201812050047.html
  17. Shark tooth from Japan (Hinoshima formation)

    Hi TFF friends, how are you? I would like to ask you few questions about a tooth I found last week in Japan. This tooth comes from the late cretaceous (Santonian) Hinoshima formation where I usually go. This formation yield about 13 different species of shark tooth, comprising Ptychodus mammillaris, Hexanchus microdon, Hexanchus sp., Notidanodon dentatus, Sphenodus sp., Echinorhinus wadanohanaensis, Cretalamna appendiculata, Protolamna sp., Squalicorax sp., Cretodus sp., Paranomotodon sp., Dwardius sp., and Synechodus sp. I found this tooth which looks like to be a Cretodus sp. but I would like to have a confirmation. In fact, I have already found Cretodus tooth at the same location but they looked a little bit different. To explain it simply, they just looked like Cretalamna teeth with fold on the crown. The tooth I've found last week, has a lot of long ridges (running from the base of the crown to half of the it) and is more "tougher" (round) than the previous one I have found. Can you confirm me or infirm me the ID? Last question: If this is a Cretodus tooth, how can we explain that this tooth has a lot of ridges but the previous one I've found have "only" fold? Is it pathologic or ontogenic? Thank you very much for your help. David
  18. Hi guys, few weeks ago I created the following topics to help me identify a tooth I found here in Japan. I am sorry, I won't be able to give you accurate information until I get green light but I will update this topics as soon as I can say more. I get some help for everyone and @Anomotodon who pushed me in the right direction with his suggestion. After further searches, I contacted a Japanese professor who confirmed me it was an Heterodontus indet. tooth. I am particularly excited because it could be (according to paleodb.org) the oldest Heterodontus tooth found in Japan as right now the oldest one is an early Oligocene tooth from kita-kyushu, and one of the oldest in Asia (the oldest in also Cenomanian of age from Kazakhstan). I am finger crossing everything I can in hope that further studies will confirm that. The tooth has been donated to a Kumamoto museum.
  19. What kind of mark is it?

    Hi TFF friends, How are you? I found the following bone in my usual spot in amakusa japan (himenoura formation) and i found it quite intriguing. It is a small bone (6mm by 1mm), maybe a fragment (a part is still under matrix) but what caught my eye was all the small parallel groove, deep at one end and shallower at the other end. Could it be some kind of predation mark? If the bone was bigger i would have think about shark tooth mark but it is really too small. Hope you will be able to see clearly the pic. Looking forward reading your comments, David
  20. Fossil Hunting in Japan

    Hello all, I've noticed that on occasion people stop by and ask about fossil hunting in Japan. Although I don't have much around me, this map is a fantastic way to see the general age of the rocks around/ near you. I think it's a great resource so please check it out.. Plus it's really interesting in general. https://gbank.gsj.jp/geonavi/geonavi.php#12,34.98798,136.93432 If you turn on the "seamless legend" option you can find on the top left of the map border, it will show you the age and type of rock that you have clicked on. I hope it helps some people. (Sorry if this is in the wrong place, please inform me if there is an issue admin)
  21. http://mainichi.jp/english/articles/20180908/p2a/00m/0na/003000c
  22. Is there something fishy here?

    Hi TFF friends, Here is one of my recent find. Hunting report to follow. I would like to get your help on this fossil. It looks like a bone and looks like fish to me but as it is the first time I found such fossil, some help would be welcome. It is a little bit smaller than 3 mm and broke right in the middle when I broke open a boulder on the shore. It is Cenomanian of age, and was found in Amakusa, Japan. Thanks by advance, David
  23. Mukawa-ryu documentary

    Here is the english version of the japanese documentary made for the Mukawa-ryu discovery. It was aired a year ago but it is still an interesting documentary about the most complete japanese dinosaur ever found.
  24. Few month ago, an ammonite hunter from Hokkaido came to Mifune Dinosaur Museum in kumamoto prefecture to exhibit part of his collection. I had the occasion to take picture of his collection and as I promised on an other thread to put some picture of it, I created this post. I hope you will enjoy the pictures. From left to right: Jimboiceras sp., big Sharpeiceras frag, Anagaudryceras sp., Anapachydiscus sp., Mesopuzonia sp., Eupachydiscus sp. From left to right: Eupachydiscus sp., Desmoceras sp., Damesites sp., Hauericeras sp., Kitchinites sp., Metaplacenticeras sp., Anagaudryceras sp., Baculites + Yubariceras sp., Menuites sp., Neophiloceras sp., Mesopuzosia sp., Tetragonites sp. From left to right: Menuites sp., yubariceras sp., urchin, Araucariaceae leaf, ammonite indet. fragment, Gaudryceras sp., fossil wood with shipworms, Ammonite's trace fossil, Polyptychoceras sp. Gaudryceras sp. Damesites sp
  25. Fossils found in Japan support idea of Pangea supercontinent By Akira Nemoto, Asahi Shimbun, February 14, 2018 http://www.asahi.com/ajw/articles/AJ201802140058.html Yours, Paul H.
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