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  1. WhodamanHD

    Fossil Tiger Shark Month?

    Fossil tiger sharks have been getting some more attention lately. Two pertinent papers were published this month. This morphometric analysis reduces Galeocerdo to six species: Galeocerdo aduncus, Galeocerdo capellini, Galeocerdo clarkensis, Galeocerdo cuvier, Galeocerdo eaglesomei , Galeocerdo mayumbensis. They agree with Physogaleus contortus being it's own species rather than a positional variant or sexual dimorphism of G. aduncus. They also contend G. cuvier back to at least 13.8 Ma. This report published today describes the partial skeleton of an immature dugong (
  2. Praefectus

    Otodus sokolovi

    L1: 7.6 cm L2: 6.2 cm W: 6.0 cm
  3. siteseer

    Fossillarry's Mammals

    As Larry familiarizes himself with how to attach photos to his posts, I will be posting for him. Larry is a humble collector of mammals but he is very experienced. He is one of the rare mammal collectors with knowledge of Eocene-Pleistocene groups. Most collectors specialize in Oligocene or Miocene-Pleistocene of North America but he knows a wide variety of forms specializing in ungulates (hoofed mammals of the Perissodactyla and Artiodactyla. He's hunted from California to Nebraska and South Dakota to Texas. The first specimen he'd like to share with the forum is a 2-tooth max
  4. I'm virtually certain this tooth is an upper intermediate tooth of Parotodus benedeni from the Middle Miocene Sharktooth Hill Bonebed, Bakersfield, Kern County, CA. It's about 1 1/4 inches high (32mm) and an inch wide (25mm). It could be a juvenile tooth but I think the less-expanded root lobes indicate a tooth position between larger teeth. It's too big to be a symphyseal and the root is wrong for that anyway. The root is too high to be a posterior. The pallial dentine is worn away but you can see the depression of the bourlette. It isn't serrated and not the shape of Carcharocles megal
  5. King Butler

    Books on Extinct Elephants

    I've taken a great intreast in the subject of extinct elephants and wondered if there were any interesting books on them? Books with other megafauna and the Cenozoic in general included are fine.
  6. What do you think about this Cave bear paw? The seller said that it's 100% genuine and authentic but i'm not sure.
  7. Neanderthal Shaman

    Anyone good with amber?

    I got this amber when I was a small kid. It used to have a tag with its source listed, but it's been lost for 12+ years, and I can't for the life of me remember what it said. Looking at it, does anyone know whether it's more likely to be Dominican, or Baltic? It is yellow, but has a slight gold tint, and is slightly translucent. There's a couple of small buggos in it.
  8. A revised Cenozoic global sea-level curve is discussed in an open access paper with associated numerical time series for plotting. the Cenozoic global sea-level curve. it is: Miller, K.G., Browning, J.V., Schmelz, W.J., Kopp, R.E., Mountain, G.S. and Wright, J.D., 2020. Cenozoic sea-level and cryospheric evolution from deep-sea geochemical and continental margin records. Science Advances, 6(20), p.eaaz1346. Open access PDF of paper Time series for plotting the Cenozoic sea-level curve Yours, Paul H.
  9. WyoProspector

    What is it?

    Hi all, I'm recently retired and I live in NW Wyoming and was wondering if anyone could shed some light on these specimens? Im particularly interested in the big rock/fossil? at the top of the picture. I found all of these on the surface in a sandstone, drab mudstone formation. Possibly Eocene, Paleocene time frame based on some quick geologic research. Looks like a foot to me but I suppose it could be about anything. The other items were found in the same area with the larger one. The area would have once been the near the edge or boundary of Lake Gosiute an/or the inland seaway I
  10. Hello all Up for trade is this set of South-American teeth. It includes 11 Chilean and 4 Peruvian teeth. The C. chubutensis, Isurus desori and Carcharhinus cf. brachyurus (the last three are on the right side) are from Peru. The others (Megachasma pelagios, C. hastalis, Carcharhinus cf. brachyurus, Isurus retroflexus and a fish tooth labelled as dog fish (not sure if correct) and some unidentified teeth. The C. hastalis is just over 2 inch. The Megachasma pelagios is around 2 cm. The C. chubutensis is just under 2 inch and has a crack in the root, but is broken. More precise locati
  11. Colorado Phanerozoic Stratigraphy https://www.coloradostratigraphy.org/strat-chart/main-strat-chart https://uploads-ssl.webflow.com/5b4d0939b0652926fd03628b/5c8199695979564cce8da9f5_Colorado Stratigraphy Chart.pdf Fossils - Colorado Phanerozoic Stratigraphy https://www.coloradostratigraphy.org/strat-chart/fossils Colorado Cretaceous Stratigraphy https://www.coloradostratigraphy.org/strat-chart/cretaceous-chart https://uploads-ssl.webflow.com/5b4d0939b0652926fd03628b/5c74604fb2a27c4217bd3f77_Colorado Cretaceous Chart.pdf Colorado Ceno
  12. I have been photographing my collection of Pliocene gastropods from the Southeastern US, but I realize that I will never be able to completely picture every specimen within my collection. On a Facebook page about fossil crabs, @MB has been showing individual drawers within his collection. I like what he is doing so I thought I would do something similar here with drawers within my collection of fossil gastropods. My display collection is organized chronologically, the first seven drawers being Pleistocene. Since many of the formations within the southeast share species and I hav
  13. Hi, Even in this hard times of corona virus outbreak I couldn't resist the urge to visit again a cave that I found a few weeks ago, but couldn't explore it fully. So I went again and this last time I went in the cave I found a great number of bones scattered around the cave. I think they are probably modern, but it is weird because the cave isn't very easily accessible for animals since it has a few big drops. I found this tooth in a small ,,room,, which was barely big enough to squeeze in to. In that same place there were a small broken skull and many bones, but this is just one o
  14. Greetings! I spent my career as a research paleontologist with the U.S. Geological Survey (Menlo Park, California) and the California Academy of Sciences (San Francisco), specializing in Cenozoic marine mollusks of the North Pacific and Arctic oceans. My summer fieldwork for 34 years was in Alaska, Siberia and northern Canada up toward the North Pole. Several times I had the indescribable thrill of being the first collector, perhaps the first human being, to visit a remote fossil site, reached by bush plane or helicopter. I was often dropped off to spend the day alone at remote sit
  15. Hello everyone, I have decided a while ago that I would focus on collecting Paleozoic material, because of this there are quite a few fossils I have that I purchased a long time ago and do not have an interest in keeping, these guys are not that special and I am not looking for much of anyone even does want to trade with me, but I do prefer Paleozoic material. I will post what I have here. 1.Lebanese shrimp fossil Cretaceous GONE/TRADED 2. Geocoma carinata I believe from the Solnhofen 3. Chunkosaurus 4.some cretaceous teeth, spinosaurus, Squalicorax, scapano
  16. Hi my name is Elias and I am new to the Forum! About a week ago I found a large piece of what looked to be fossilized bone, on Folly Beach SC. Upon further examination I noticed that it seemed to have a solid light gray center surrounded by a ring of bone. Further research has led me to believe this may be a chunk of Mastadon tusk, however the specimen is so beaten up it is hard to identify any Schreger lines. I am much more experienced in Cambrian and Ordovician fossils, and have just recently begun exploring fossils of the Pleistocene Epoch. I would appreciate any help on identifying
  17. I recently saw a wonderful diagram showing the fossil ranges of various scleractinian coral architectures, or at least the ranges of genera typical of those architectures. But now I can't seems to find it again... The diagram included images of the various coral growth forms and was simpler than but otherwise similar to this: If anyone knows where I might have seen such a diagram, please post the url here -- thanks!
  18. New Paleogene mantises from the Oise amberand their evolutionary importance THOMAS SCHUBNEL and ANDRE NEL Acta Palaeontologica Polonica 64 (4): 779–786. schuNELinsemantilagersthexapoapp006282019.pdf @Coco @fifbrindacier
  19. A couple of weeks ago, I was in Barnes & Noble bookstore and spotted this book in the science section. It's too close to Christmas to get it for myself but I was content to look through it there. I was familiar with the artwork of Jay Matternes (and I'd seen the cover of the book two months before it was published in October) from various publications especially a small souvenir booklet I bought at the visitor center at Agate Fossil Beds National Monument back in the 90's. In that little book there are mini versions of murals he painted for the halls of the Smithsonian along with recons
  20. Carcharodontosaurus

    Cenozoic Giant Reptile Material?

    In recent years, I have become just as interested, if not more so, in non-dinosaurian prehistoric large reptiles than in dinosaurs themselves. Especially giant reptiles of the Cenozoic. Right now one of my prize pieces is a partial Megalania vertebra from Australia. However, I would like to acquire more large Cenozoic reptile fossils in the future, such as sebecosuchians, palaeophiids, giant crocodiles and giant tortoises. What material of this kind have TFF members seen available commercially? Would also like to have information on Triassic non-dinosaur reptiles. And Palaeosaniwa,
  21. Matty from Reno

    petrified bone? petrified wood?

    Any help on identifying what these might be would be great. Found near Reno, Nevada in an area stated as being from the Cenozoic period. They appear to be bone to me and I did use the "stick to tongue" test and they do stick to my tongue for a second. Thank you for any help or a push in the right direction for me to find out more specifically what they are. I will add more pics in comment section.
  22. siteseer

    Mystery Mammal Tooth

    I saw this tooth at a gem and mineral show a few years ago. Unfortunately, it didn't have a label. Normally, I pass on fossils with no info no matter how cheap and intriguing they are but it was unlike anything I've had in my collection so I bought it. I just found it again this year while trying to clear and clean up some space. It's a mostly-complete crown, perhaps a lower molar, with perhaps some root but the base of the tooth is almost completely obscured by restoration which appears to be plaster. A little plaster was also used to restore part of a cusp and part of a side.
  23. Hey Everyone - I hope someone can provide some insight and help me identify this fossil. I would really appreciate it! I found this strange looking tooth (at least I think it is) a few years ago in San Antonio, Texas. It feels and looks like a rock as far as texture goes but it's shaped very similar to an animal tooth. I've attached photos for reference and labeled each one: Front Back Side Front Height - 5 inches (12.7 centimeters) Front Width - 4.5 inches (11.43 centimeters) I've also attached a Geology Map of Texas which outli
  24. Hello everyone, I have enjoyed trading fossils with people on the forum so here are two more I have to offer. This is a nice pair of Thalassina anomalas from Australia, the larger one is missing most of the tail but has pretty nice pincers which are not commonly found intact. Their sizes are around 8 and 5 cm. The smaller one also has an incomplete tail. I myself am looking for Paleozoic fossils especially trilobites. Thank you, Misha.
  25. I watched a show on PBS last night, "When Whales Walked: Journeys in Deep Time." I just happened to notice it on the guide about 45 minutes before it was on. It is actually about more than the evolution of whales, the group having four-footed Early Eocene ancestors. There is a long segment roughly twenty minutes long each on crocodilians, birds, whales, and elephants. I thought it was a good show overall with interviews of researchers I know from their technical articles ( Hans-Dieter Sues, Philip Gingerich, Emmanel Gheerbrant, Christian de Muizon). However, each segment was also a little
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