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  1. Perhaps one of the most exciting scientific papers in a while about the genetic diversity of the Tyrannosaurid genus Tyrannosarus itself (the genus that includes the famous and well documented T-rex) was just announced and published (or at least the abstract of it)!!! Image Credit: Dalman et al. 2023 (abstract) and the Society for Vertebrate Paleontology (SVP). https://vertpaleo.org/wp-content/uploads/2023/10/2023_SVP_Program-Final-10032023.pdf At the Society for Vertebrate Paleontology's annual meeting for 2023, Paleontologists Dr. Sebastian Dalman, Dr. Philip J. Currie, and seven other experienced Paleontologists and experts on the Tyrannosaurid theropod dinosaurs published an abstract on October 21, 2023 about a new species of Tyrannosaurus (Tyrannosaurus mcraensis) from the Hall Lake Formation dating 72 Million Years ago to the Campanian-Maastrichtian Cretaceous of what is now New Mexico!!! This not only gives insights on the origins of the genus Tyrannosaurus, but validates previous hypothesis over the years (at least since 2013) that a unique giant Tyrannosaur from southern Larmidia (now Western North America) that lived during the Campanian-Maastrichtian Cretaceous!!! Names given to this animal over the years include Alamotyrannus brinkmani and Tyrannosaurus brinkmani. A Digital Reconstruction of the Tyrannosaurus species Tyrannosaurus mcraensis and it's size compared to an average Human, April 2022. Image Credit: Artist LancianIdolatry https://twitter.com/LancianIdolatry/status/1511016414252978182 This is especially true given for how long the debate has been raging on the Validity ofThe species Tyrannosaurus mcraensis was when fully grown the same size of the averaged size adults of the later Tyrannosaurus rex from the later Maastrichtian Cretaceous. By the look of things with the Paper and the experienced paleontologists and Tyrannosaur experts who authored it, it seems just by looking at its abstract it will be be far more through and accurate than the recent Gregory S. Paul Paper from 2022 and maybe even prove the validity of the debate Tyrannosaur species Tyrannosaurus vannus from the 70-66 Million Years ago dated Javelina Formation of what is now Texas. But I'm wondering if anyone has more information on this study and the potential of it's results?
  2. The Ctenacanthiform Sharks are perhaps one of the most famous, yet enigmatic groups of sharks currently known, with a fossil range stretching from the Early Devonian to the Early Cretaceous periods 407.6-136.4 Million Years ago and with a range that spans globally. The most enigmatic along with the most famous genus of Ctenacanthiform (as well as one of my personal favorites) is the genus Saivodus, which was only described properly in 2006 after its fossilized remains were mistaken for two centuries as remains of species belonging to two other Ctenacanthiform genus, Ctenacanthus and Cladodus. The genus Saivodus emerged during the Early Carboniferous 360.7-345.3 Million Years ago and included the largest currently known species of Ctenacanthiformes, the Carboniferous Saivodus striatus that grew up to 35 feet in length fully grown. Despite large numbers of teeth and even very well preserved fossilized remains of the head including jaws and fins from large Saivodus striatus specimens being discovered and described, still very little is known about the overall paleoecology of these enigmatic sharks. Artist reconstruction of an Adult Saivodus striatus and its size compared to an adult Human and adult Great White Shark (Carcharodon carcharias) by artist HodariNundu. Image Source: https://www.deviantart.com/hodarinundu/art/Super-Sized-Saivodus-866628428 https://paleobiodb.org/classic/basicCollectionSearch?collection_no=84108&is_real_user=1 The latest record of the genus Saivodus was believed for a few years to be fossils of a small Saivodus sp. from the Fossil Mountain Member of the Kaibab Formation dating to the Kungurian stage of the Permian period 279.3-272.3 Million Years ago in what is now Kachina Village of the U.S. State of Arizona. Hodnett, J. P. M., Elliott, D. K., Olson, T. J., & Wittke J. H. Ctenacanthiform sharks from the Permian Kaibab Formation, northern Arizona. Historical Biology, (2012). 24. 381-395. Retrieved December 16, 2023, from https://www.researchgate.net/publication/254237970_Ctenacanthiform_sharks_from_the_Permian_Kaibab_Formation_northern_Arizona https://paleobiodb.org/classic/basicCollectionSearch?collection_no=132088&is_real_user=1 However, I just found a confirmed (until recently overlooked) record of the genus Saivodus with the assistance of a recent well researched paper on Ctenacanthiform diversity that extends the geological range of genus by around 25.1-20.1 Million Years. I think you’ll all find this record extremely interesting!!! A Ctenacanthiform tooth were found in 1970 in deposits of the Zewan Formation dating to the Changhsingian stage of the Permian period 254.2-252.2 Million Years ago in what is Guryul Ravine of the region of Kashmir, a disputed territory located at the northernmost point of the Indian Subcontinent of South Asia). This tooth were initially described in 1971 by Paleontologists from Kyoto University, Japan as belonging to a new species of Ctenacanthus, (Ctenacanthus ishii). The size of the tooth is the following: Length of the base of tooth specimen - 16 mm. (1.60 cm.) Width of of the tooth's base - 6 mm. (0.60 cm.) Length/height of each of the tooth's two largest subsidiary or lateral cusps on each side of the tooth - 3.5 mm. (0.35 cm.) Length/height from the base of the tooth's apex to the top of the tooth's central/medial cusp - 8 mm. (0.80 cm.) Photographs of the Kashmir Saivodus sp. tooth specimen from the Permian-Triassic Zewan Formation, Kashmir, Asia. Image Source: https://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/186572/1/mfskugm 038001_163.pdf However, further analysis of the Kashmir specimen in 2021 (including the general tooth shape and morphology) has confirmed the Kashmir tooth is in fact the latest geological record of the Saivodus genus currently known. Kapoor, H. M,, and Sahni, A. A Shark Tooth from Zewan Series of Guryul Ravine, Kashmir. Memoirs of the Faculty of Science, Kyoto University. Series of Geology and Mineralogy, (1971). 38(1), 163-166. Retrieved December 16, 2023, from https://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/186572/1/mfskugm 038001_163.pdf Shah, I. K., Farooq, M., Meraj, G., et al. Geological treasure of Guryul ravine section in Kashmir Himalaya - a case report. ESS Open Archive. (2022). https://doi.org/10.1002/essoar.10510303.1 https://d197for5662m48.cloudfront.net/documents/publicationstatus/75277/preprint_pdf/7673ce9d023bd875199a50b14e3f42e7.pdf Feichtinger, I., Ivanov, A. O., Winkler, V., Dojen, C., Kindlimann, R., Kriwet, J., Pfaff, C., Schraut, G., & Stumpf, S. Scarce ctenacanthiform sharks from the Mississippian of austria with an analysis of carboniferous elasmobranch diversity in response to climatic and environmental changes. Journal of Vertebrate Paleontology, (2021). 41(2). https://doi.org/10.1080/02724634.2021.1925902 Not only does this expand the geologic range of Saivodus and is the first confirmed record of this genus from Asia, but the proximity the Kashmir specimen was collected to the location of the Permian-Triassic boundary at the Zewan Formation (only 3 meters away from the geologic boundary) could indicate small to medium species of the genus Saivodus survived the Permian-Triassic Extinction Event 252 Million Years ago and survived (albeit very briefly) into the Early Triassic. This is a major discovery in the study of Ctenacanthiform sharks. Hopefully more specimens of Ctenacanthiform sharks from Permian-Triassic deposits in Kashmir, Pakistan, India, and around the world could be uncovered, studied, and described soon so that we may all get a more accurate understanding of the paleobiology and paleoecology of these amazing prehistoric sharks. This will also give us a more accurate understanding of the fascinating time they lived before one of Earth’s largest mass extinction events along with the period of biological and ecosystem recovery afterwards.
  3. Hi.. I got some isolated tooth of bat probably 4 to 5 different species of Chiropteran due to similarity its being difficult for me to identify their species. I am looking for an expert to help me out to identify or guide me or share some helpful material. Any help will be highly appreciated.
  4. Joy_Fossils

    Fossils in India

    Hi everyone! My son was curious about fossils in India, since we are visiting to see family. All of our knowledge about palaeontology is limited to North America, so India is completely unknown for us. I am aware of some Indian dinosaurs thanks to Prehistoric Planet and a local museum, and dinosaur egg finds published in local newspapers, but nothing else. I am pretty sure that India was once covered by a sea at some point in time, so maybe there are shells and ammonite beds in the country? If anyone can let me know about anything palaeontology related or fossil related in India, it would be greatly appreciated!
  5. As I have been researching large ctenacanthiform sharks from North America, I've been wondering if there are any known globally that are currently unnamed. I definitely know of the large Ctenacanthiformes Saivodus stratus (found in both what is now North America and Great Britain), the large Ctenacanthiform from the Permian Kaibab formation in Arizona, and the 'Texas supershark' (a likely large species of Gilkmanius) from the Pennsylvanian Texas Graham formation (all three as larger or larger than an adult Great White Shark (Carcharodon carcharias)). But are there any large ctenacanthiformes (at least in size comparable to a modern day adult Great white shark (Carcharodon carcharias)) currently unnamed that are also known? Ctenacanthiformes are known from North America, Greenland, Europe, Asia, and South America. https://www.mindat.org/taxon-P34476.html Even though study of Ctenacanthiformes as a whole is just starting to become more through within the past few decades, I'm wondering if anyone on the forum is aware of any currently unnamed Ctenacanthiform fossils from areas outside of North America of Great White Shark (Carcharodon carcharias)) size?
  6. The two most prominent hypothesizes on the direct evolutionary origin of perhaps the most famous Theropod Dinosaur from the fossil record, Tyrannosaurus Rex (Tyrannosauridae, Late Cretaceous (68-66 Million Years ago)) are what I call the Laramidia and Asian Origins. The Laramidia origin (named after the region of the Western North America which was a separate Continent during most of the Late Cretaceous and home to a vast amount of dinosaurs including Tyrannosaurus rex) hypothesizes that Tyrannosaurus rex is the direct descendent of and evolved from slightly older North American Tyrannosaurids like Daspletosaurus (Tyrannosauridae, Late Cretaceous (79.5-74 Million Years ago)). Warshaw, Elías & Fowler, Denver. (2022). A transitional species of Daspletosaurus Russell, 1970 from the Judith River Formation of eastern Montana. PeerJ. 10. e14461. 10.7717/peerj.14461. https://www.researchgate.net/publication/365746599_A_transitional_species_of_Daspletosaurus_Russell_1970_from_the_Judith_River_Formation_of_eastern_Montana The Asian origin hypothesizes that Tyrannosaurus’s direct ancestor was a Tyrannosaurid from Asia. This supported by how closely related the Asian Tyrannosaurid Tarbosaurus (Tyrannosauridae, Late Cretaceous (70 Million Years ago)). This hypothesis further elaborates that a that the Asian Tyrannosaurids arrived in Western North America via a land bridge between what is now Eastern Russia and Alaska around 73-72 Million Years ago. On arrival, theses Asian Tyrannosaurids outcompeted and caused the extinction of most of the Native Tyrannosaur species of Laramidia (including Albertosaurus (Tyrannosaurid, Late Cretaceous (71-68 Million Years ago)), creating conditions allowing for the emergence of the genus Tyrannosaurus. Brusatte, Stephen & Carr, Thomas. (2016). The phylogeny and evolutionary history of tyrannosauroid dinosaurs. Scientific Reports. 6. 20252. 10.1038/srep20252. https://www.nature.com/articles/srep20252 Takasaki R, Fiorillo AR, Tykoski RS, Kobayashi Y (2020) Re-examination of the cranial osteology of the Arctic Alaskan hadrosaurine with implications for its taxonomic status. PLoS ONE 15(5): e0232410. https://doi.org/10.1371/journal.pone.0232410 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0232410 Both hypotheses have points that are supported by the fossil record, but still don’t fill all the gaps in answering the question of the direct origin of the genus Tyrannosaurus. There is however another hypothesis I have pondered over for at least the past few months which could fill in some (if not all) the gaps to this question. It is the Hybrid Speciation Origin hypothesis. The Hybrid Speciation Origin hypothesis basically states that after a land bridge formed between Eurasia and Laramidia during the Late Campanian stage of the Cretaceous (73-72 Million Years ago) and the Asian Tyrannosaurids arrived in Laramidia, certain individuals of a Asian Tyrannosaurid genus breed with a species of a genus of Native Laramidia Tyrannosaurid (likely a direct descendent of Daspletosaurus). Enough of these inter-genus breeding events occurred that a new Tyrannosaurid genus distinct from its parent species (and genuses) emerged around 68 Million Years ago, Tyrannosaurus. I will admit this would be extremely difficult to prove, but I do believe it could be a valid hypothesis. It corroborates the many similarities in skeletal structure Tyrannosaurus shares (and how closely related it is phylogenetically) with the Asian Tyrannosaurid Tarbosaurus and the skeletal structure similarities and general body shape it shares with Daspletosaurus. Image Credit: https://www.nature.com/articles/srep20252 Brusatte, Stephen & Carr, Thomas. (2016). The phylogeny and evolutionary history of tyrannosauroid dinosaurs. Scientific Reports. 6. 20252. 10.1038/srep20252. https://www.nature.com/articles/srep20252 Warshaw, Elías & Fowler, Denver. (2022). A transitional species of Daspletosaurus Russell, 1970 from the Judith River Formation of eastern Montana. PeerJ. 10. e14461. 10.7717/peerj.14461. https://www.researchgate.net/publication/365746599_A_transitional_species_of_Daspletosaurus_Russell_1970_from_the_Judith_River_Formation_of_eastern_Montana Stein, Walter W.; Triebold, Michael (2013). "Preliminary Analysis of a Sub-adult Tyrannosaurid Skeleton from the Judith River Formation of Petroleum County, Montana". In J. Michael Parrish; Ralph E. Molnar; Philip J. Currie; Eva B. Koppelhus (eds.). Tyrannosaurid Paleobiology. Bloomington: Indiana University Press. pp. 55–77. Currie, P.J. (2003). Cranial anatomy of tyrannosaurid dinosaurs from the Late Cretaceous of Alberta, Canada. Acta Palaeontologica Polonica 48 (2): pp. 191–226. https://www.app.pan.pl/archive/published/app48/app48-191.pdf I am interested in how the tyrannosaurid species Nanuqusaurus (Tyrannosaurid, Late Cretaceous (70-68 (likely also to 66) Million years ago), the Daspletosaur Tyrannosaurid specimen RMDRC 2002.MT-001 “Sir William”, and the Tyrannosaurid specimen CM 9401 could factor into the validity of the hybrid speciation hypothesis. I hold no illusions in thinking this hypothesis is not going to be controversial. But I do think it could be semi plausible. What do you guys think?
  7. Hello! Looking to ID this asian theropod tooth from the late cretaceous of Bayankhongor, Mongolia that is supposedly from Alioramus sp. The serrations are quite worn for this rooted tooth and are hard to see, the entire tooth measures 60mm Below I've attached some pictures, thanks in advance!
  8. I don't think anyone has posted about this museum, but the Tokai University Museum of Natural History is a local museum near my family's hometown in Shimizu, Shizuoka, Japan. This is a museum that I visited a lot of a kid, but I was told that the museum as well as the aquarium here was going to close to the public sometime around March of this year? Haven't been here in like 15 years, so I figured I should go one last time before it closes down. You can also get a discount for tickets at convenience stores. It's not a huge museum, but there was some oddities. Also, some of the labels here are either outdated, or . . . a bit odd. Cetiosaurus statue Species: Pterichthyodes milleri and Pterichthys milleri Locale: Scotland, United Kingdom These are the same exact thing right? It's clear the labels for these were printed at different times. Species: Pleuracanthus sp. Locale: Germany Species: Scutosaurus karpinskii, Dicynodon amahtyku, Inostrancevia alezandri, Estemmenosuchus uralensis Casts from Russia. Species: Sauropoda indet. (?) Locale: Alberta, Canada (???) They refer to is as possibly being Apatosaurus but . . . You used to be able to touch this fossil, which is what that covered up section in on the information. Not sure if this is pandemic related, or they figured it wasn't a great idea somewhere down the line. Species: Tarbosaurus baatar (Cast) Locale: Gobi Desert, Mongolia Original in Russia, which likely explains all the specimens after this one that aren't casts. Oospecies: Protoceratopsidovum fluxuosum Locale: Gobi Desert, Mongolia Species: Protoceratops sp. Locale: Gobi Desert, Mongolia Species: Gallimimus sp. Locale: Gobi Desert, Mongolia Species: Protoceratops sp. and Psittacosaurus sp. Locale: Gobi Desert, Mongolia Species: Deinodon tidoe (???) Locale: カプサイ (Kapusai?), Russia Good old Deinodon. Age is listed as 97-65 MYA. Not sure where Kapusai, Capsai, Capusai is. Everything about the label looks like a mess, but probably the most interesting piece I saw. I spent the longest time just looking at this specimen. I'm sure as a kid, I just walked right past it to look at all the big skeletons. But coming back here as a collector made me see this place in a new perspective. Species: Tarbosaurus baatar Locale: Gobi Desert, Mongolia Species: Saurolophus angustirostris Locale: Gobi Desert, Mongolia Species: Arcuaeogeryon peruvianus Locale: Uruguay Nothing comes up for this species or genus other than this specific specimen, so it's probably way outdated or was not right from the start. Or it is a spelling mistake. I know a lot of obscure genera don't come up if you mess up even a single letter. Species: Coelacanthus banffensis Locale: Canada Species: Carcharocles Otodus megalodon Locale: Atacama Desert, Chili Species: Carcharodon carcharias (Great White Shark) Locale: Kakegawa, Shizuoka, Japan
  9. MetalRavioli

    Help Identifying fish fossil!

    Hello Fossil enthusiasts! Im new to this forum, and am already here needing help identifying a fossil! I recently came into possession of this fossil of a fish. While I initially believed it to be a member of the Knightia genus, I am now quite unsure what I have here. The man I purchased it from said it was from asia, possibly china, but I am unsure of the authenticity of that claim. I don't have a tape measure on me, but the slate itself is approximately 9cm long. Any help is appreciated!
  10. vietnamfossil

    Rhinoceros or buffalo rib?

    Hi folks! Recently I found a rib from a Paleolithic site which dating about 21000- 10000BP. As the size of this huge, I don’t know if it belongs to the rhinoceros buffalo? Note: I try to put together with the vertebrae of bison priscus from Europe (TH8 bone) and it bigger.
  11. Hi everyone! This thread is dedicated to our Southeast asis fossil cave adventures and finds. One of the important sites for the Stegodon - Pongo - Ailuropoda fauna of the Pleistocene. This not only just fossils but also the Paleolithic and Neolithic found. Following this and I wil explain more experiment on IDyng the cave fossils and some basic things to know the age of them. Hope you guys enjoy it! This is my first trip in North Viet Nm. Cave entrance (usually Pleistocene cave have very small entrance) Just 15 minutes and I discovered a hominid tooth. It not my first time but I really love that moments. I use to found mammals before but just normal deer fossils. Looking for fossils into these cave deposites and cave breccia is not easy
  12. Guns

    Yixian formation tooth

    Hello everyone , need some help in ID of this tooth from Liaoning Province , Yixian formation , China Size : 0.6 " Thank in advance Guns
  13. vietnamfossil

    Ammonite from Vietnam need help ID

    Hello everyone! My friend just found this one on the river bank. I just look at the formation there that is from early Jurassic. But about this species they didn’t find before so it not on the fossil list. As I just think this is Psiloceras because it look very similar to that species in Uk. Do you have any idea about this fossil please help me! Thanks
  14. I came across this tooth recently, but I (nor the seller) can figure out a decent identification for it. It’s an unknown theropod tooth from the Bissekty Formation in Uzbekistan. This is what the seller said about the specimen, “This tooth is much different from other Tyrannosauroid teeth from Bissekty. Less compressed and more rounded with much finer serrations. I believe it may be an undescribed species of theropod.” Is there any way to figure out at least a vague identification for this tooth? AC004AA5-21F2-40EF-88DF-1B6D7EAAB606.webp ECFA6C29-3CAD-4B84-98FE-B4D51F5FAD12.webp 072D8201-307F-4120-9EA1-AC550A7B303F.webp 1EDDCF06-2DF9-4403-9567-7B4440B05A97.webp 66469C72-BCEF-4EE7-A5EC-1E8D9DB4664F.webp (Sorry for the messed up files/images; my storage is all used up)
  15. I purchased these as Ingenia yanshini which I think became Ajancingenia, which then became and is currently Heyuannia. The formation provided is the Djadochta Formation, but that doesn't seem right since Ingenia/Heyuannia is not found there as far as I've checked. Unfortunately, there isn't provenance other than Mongolia attached to them to say whether they come from the Barun Goyot Formation where Heyuannia yanshini is found. While I'm not necessarily doubting the original ID, I just don't really know. I'm not expecting a positive or diagnostic ID to the genus level, but I wanted to at least know whether or not I can label this to Oviraptoridae indet., possibly Heyuanniinae indet. The original ID is a bit of an odd one, but it might have just been one of the few oviraptorids described at the time. Last I checked, there are now tons of recently described oviraptorid genera in Mongolia and China. The pair of phalanges with supposedly the semilunate carpal attached which I think is the smaller section? I know one of them did have glue in-between them when I lightly smeared it with acetone using a cotton swab. They are associated coming from the same sandstone block, apparently along with other shattered phalanges. Although I don't know if these actually came from the same animal since one looks ever so slightly larger. There is some sort of clump of sand or crystalized piece attached, as well as light beige or cream colored matrix. Not sure if that narrows down a formation, probably not, but I do see a lot of matrix from Mongolia tend to be red-ish color similar to the Kem Kem Beds. Any input is appreciated. There's probably a lesson to be learned here . . .
  16. Shellseeker

    Miocene Horses

    I was answering questions on Horse tooth identification in the Netherlands, and thought of something that I really did not know. I learned the conventional wisdom. Horses started in South America, migrated across a land bridge to North America, and eventually crossed the land bridge near what is today the Bering Strait, into the rest of the world. Horses went extinct in the Americas. In the 1500s, Spaniards reintroduced horses into the Americas. So, How far back in the fossil record do Horses go outside of the Americas? I have no idea, beyond thinking we had Equus in Florida 100000 years ago.
  17. Hello. I was wondering if I could get some opinions on the authenticity of this Psittacosaurus skull. The seller didn't provide measurements and stated the skull came "from Asia." I suspect this is a fabrication, but I would like to hear others' opinions. Thank you for your help.
  18. Kiros

    Help me identify this jaw

    Hello everyone, someone offered me this partial jaw. Clearly it was found in the Guangzhou province and should come from Taiwan. By the look of it I think it's a hyena or hyena like animal. But I can't decide if it's an adcrocuta jaw or a Dinocrocuca jaw. What are you opinion? Can anyone help me?
  19. BonuFrailman

    Asian Dinosaur Vertebra?

    Hi everyone, I found a seller who appears to have gotten some fossils from a collection. He is selling this vertebra as a Gallimimus from Northern Asia. By North Asia the seller means Mongolia. Seller says it’s from a Cretaceous deposit that is 75 MYO. Not much to go off of but let me know what you guys think!
  20. Several people pick Ankylosaurus, Euoplocephalus, Edmontonia, Polacanthus, Sauropelta, Hylaeosaurus, Gargoyleosaurus, and Gastonia when asked what their favorite ankylosaur is. However the scope of this question is to ask users what their favorite Asian ankylosaur is.
  21. Mioplosus_Lover24

    Asian Tyrannosaurid Tooth

    This is a tooth I have purchased, and I was wondering if anyone had any idea on a species for this guy? The seller said it was from Uzbekistan, but the colors are very different from teeth I've seen from that area. Any input or information is greatly appreciated! The tooth is 2.75 inches long.
  22. I have a specimen of a shark jaw that I am unable to identify. From a quick search, it seems that it might be a snaggletooth shark jaw, but I am not completely sure.
  23. Here is another piece of my dinosaur collection - this time material from Eurasian countries. Unfortunately don't have any Triassic or Early Jurassic material, so let's begin with Middle Jurassic (Bathonian) of Itat formation, Krasnoyarskyi region, Russia. Theropods are the most common dinosaurs from there, yet their teeth rarely exceed 15 mm in length. Here is my largest one - could be from Kileskus aristotocus, an early Proceratosaurid (ancestor of Cretaceous tyrannosaurs) and the only described dinosaur from this location. Here are a bunch of Kileskus teeth I had before There also likely were more theropod species, similar to contemporary Chinese Dashanpu formation - methriacanthosaurids (equivalent to Sinraptor), megalosaurids and ceratosaurs. Some teeth I have or had that could be megalosaurids due to bulkier shape and finer serrations (all around 1 cm). In addition I have some specimens from diverse herbivores - Stegosaurids Long-necked sauropods (Mamenchisauridae), possible embryonic teeth Heterodontosaurid fang tooth, 5 mm (huge for this species!)
  24. I was walking along the beach in Hong Kong when I found these. They may just be ordinary stones, but if they are fossils of some kind, please also tell me what kind of fossils they are.
  25. I only know that it comes from Northeast Asia.
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