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Found 68 results

  1. 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 sites up to 60 miles (100 kms) away. I had a number of extreme adventures, including killing an attacking grizzly with my only bullet, fending off a pack of wolves circling me, crashing in a helicopter, escaping a landslide by jumping into a passing river raft, and near-drownings in icy rivers. Of course, it was all worth it because of the fossils! My main work was documenting Cenozoic faunal and climate changes in the Arctic. However, my most notable accomplishment was solving the age-old mystery of Bering Strait’s age, which was featured on the cover of Nature. Most satisfying was discovering an unnamed river in remotest Alaska and naming it the Spirit River. I’m happy to say that my friend Warren Allmon, Director of the Paleontological Research Institution, wrote, “This memoir is a can’t-put-down page-turner, equal parts Jack London and Marincovich’s idol Roy Chapman Andrews. It is not just a rip-roaring adventure story; it also eloquently communicates both the intellectual thrill of scientific discovery and the emotional (and spiritual) energy derived from genuine exploration in some of the most challenging — and beautiful — environments on Earth.” He and other reviewers commented on the laugh-out-loud humor in my book. My book won a Bronze Medal in the Adventure category of a national book contest, and it has become an Amazon #1 Best Seller in its category. Reviews of my memoir are on Amazon.com and Goodreads.com I hope that fossil enthusiasts here enjoy reading about my adventures and research. My web site at www.loumarincovich.com has an array of photos from my fieldwork days and a list of my larger publications. Lou
  2. 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, scapanorynchus, enchodus 5. Some gastropods 6.otodus obliquus Morocco eocene
  3. 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 what this is, and can send more or clearer photos if necessary! Thank you so much for your help! Elias
  4. 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!
  5. hexapoda/mantoidae/Oise /Pseudomantoida

    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
  6. 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 reconstructions to show the skeleton, musculature, and body exterior based on fossils and modern animal comparisons. It's beautiful work. In "Visions of Lost Worlds" I saw the same kind of artwork and reconstructions but this new book also has preliminary sketches to show his process from idea to finished work. If I don't get it from Santa, I'm going to get it and eventually write a review for the forum (although maybe I just did). I already love this book. Jess
  7. 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, Hell Creek's Komodo dragon.
  8. 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.
  9. 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. The plaster appears off-white to a yellow-orange against the brown enamel in the photos. That indicates it's an old collection piece as almost nobody uses plaster anymore, various types of putty having been the preferred material for at least the past couple of decades. It's about 1 1/2 x 1 11/16 inches in occlusal view and the crown is about 5/16 to 11/16 inches high. I showed it to a fossil dealer with a lot of experience with a range of mammals. He thought it could be something unusual from the Eocene and more likely the later Eocene. I think it might be an early gomphothere tooth and one most likely from North America (as it came out of a private collection in California but that's really just a guess) which would make it Middle-Late Miocene in age. I guess it could be some kind of anthracothere. I don't know. I was wondering what any of the "mammal people" think of it. @fossillarry @Harry Pristis Jess
  10. 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 outlines where rocks of various geologic ages are visible on the surface of Texas today. On the map, I circled in yellow the location of where San Antonio, Texas is for reference. Hopefully it can provide more insight for you. I'm not even close to a geology expert but limestone is very prominent in San Antonio. The city is also home to The Edwards Aquifer which may or may not be useful. I'd be happy to answer any questions and I can also take additional pictures if needed. Looking forward to hearing back from you all!
  11. 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.
  12. 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 light on content for the topic and one was especially unclear. The one on birds made it appear that Deinonychus was an ancestor of later birds. They should have showed a chart showing when it lived in the Cretaceous with Archaeopteryx and the Liaoning birds millions of years before. There was a quick view of a family tree that seemed to illustrate that but it went by in a second or two. The segment on whales showed a lot of footage of modern whales and some great background on the "first whale," Pakicetus, but it didn't show any of the whales described in the past twenty years. It just mentioned that there had been recent discoveries. I thought there should have been at least a quick look at Ambulocetus and a few of the increasingly more marine-adapted forms that lived before Basilosaurus. They pretty much jumped from Pakicetus to Basilosaurus to the divergence of toothed and baleen whales. I think they could have spent the two hours just on the whales just as the title of the show led me to believe. I liked the segment on elephants because just as I was expecting the show to skip the earliest known members of the group, they go to Morocco and then talk to Emmanuel Gheerbrant who described Phosphatherium, the first probiscidean, which is known from the same early Eocene phosphate layer as a lot of the shark teeth we see at shows are from. Other extinct forms were descussed as well. Here's a link that takes to an online notice and website: https://www.pbs.org/show/when-whales-walked-journeys-deep-time/ Jess
  13. Recently I’ve found some strange fossils from an area in Simi Valley (Southern California). I had thought there were only shells, but turns out there is vertebrate material! Among other fragments, I found a couple big whale vertebrae as well as this piece here that I am unsure about. I’ve seen some mentions of fossils from smaller marine mammals like dolphins and pinnipeds, maybe it’s one of those? Unfortunately there only one end present, so I’m not expecting to get anything too specific. The formation is about 5 million to 11 thousand years more. Hopefully I can get some more interesting things from that spot. Thanks!
  14. I was on a hike on top of a hill (about 700 feet in elevation) in Chino Hills (roughly 50 miles inland from the Southern California coast line) and I picked up a few loose sedimentary slabs and looked under them. I found this clear fossil of a seashell. I’m wondering how old it could be? What period was a sea covering Southern California and this high up from sea level?
  15. Whale Ear Bone

    I found this in a creek in the Charleston, South Carolina area where I often find sharks teeth and whale bones. I believe the site is Oligocene/Pliocene. If found anywhere else, I would have assumed it was a piece of gravel and tossed it, but it does look a little strange. Perhaps someone with more experience in the Cenozoic can help with the ID. The item is about 3 inches at its longest dimension. Like I said, I am thinking tumbled gravel on this one, but figured that I would check before throwing it in the garden.
  16. Fossil whale bone (specific bone ID)

    Hello all, So i've recently come into the possession of this chunk of bone, and based on the size, porosity, and locality (York River State Park) I believe it's a whale bone (Miocene-Pleistocene in age, likely a mysticete). My question is, which bone exactly is it? It seems to have some fairly distinctive features that seem to lend towards identification, but after around two days of research i'm stumped. I'm thinking it could be anything but some vertebral element, but i'm not sure. Any help is greatly appreciated.
  17. Maybe ancient mammal bone

    In addition to the possible orthocone fossil I found in the same creek, I found this mammal bone. I live about ten miles as the crow flies from Big Bone Lick State Park in Kentucky. I live on a cattle farm (have had horses on the farm before as well spanning at least 50 years). This bone struck me as looking quite old due to the coloration and the slight erosion on it. With me living on a cattle farm, I’m leaning towards it being some sort of bovid bone, but want to know your all’s opinion. Thanks!
  18. Fossil bone

    Bought this fossil bone from an old man, not sure what it is, guesses?
  19. Seasonal skate

    MArr A new Miocene skate from the Central Paratethys (Upper Austria): the first unambiguous skeletal record for the Rajiformes (Chondrichthyes: Batomorphii) Giuseppe Marramà, Ortwin Schultz & Jürgen Kriwet Journal of Systematic Palaeontology, DOI: 10.1080/14772019.2018.1486336 category: "stand well back when reading this" 10 out of ten
  20. Microgastropods of the USA

    p295-308GARVIE.pdf Microgastropod population changes from the early Cretaceous to the Recent in the Gulf Coastal Plain of the USA CHRISTOPHER L. GARVIE Zoosymposia(1),2008
  21. lucinids

    DIJK John.D.Taylor and Emily A.Glover Hanging on-lucinid bivalve survivors from the Paleocene and Eocene in the Western Indian Ocean(Bivalvia:Lucinidae) Zoosystema,2018/v.40-7 about 6.2 MB RECOMMENDED! New genus: Retrolucina(previously Eomiltha) http://zoobank.org/urn:lsid:zoobank.org:act:DAFC3EBA-0C19-4D63-8248-65A6F761670A
  22. Vacation Fossils

    Our first full day of sun, sand, and surf in Jamaica bumped up against some fossils, and pseudofossils. In this area (St Ann’s Parish), more than 75% of the rock here is limestone spanning from the Cretaceous to periods in the Cenozoic. Not far from me is the Blue Mountains, the highest altitude on the island (we’re planning on a day trip to see the coffee cultivators and a 12 mile downhill bike ride). Given the abundance of limestone, it is no surprise that it features prominently in a lot of building material. Here is some fossil coral in some large, raw blocks:
  23. Chinese fruit

    Spirematospermum_wetzlerilagerstertifloracarpolzingib_Heer_Chandler_Zingiberac.pdf Spirematospermum wetzleri (Heer) Chandler (Zingiberaceae) from the Miocene ofWeichang, Hebei Province, North China and the phytogeographic history of the genus Ya Li Tie-Mei Yi Journal of Palaeogeography (2018) 7:7,3, Yue-Zhuo Li4 and Cheng-Sen Li1* Fossil zingiberids( gingers,bananas) are rare,of course outtake:
  24. decapodal delights

    Carrie Schweitzer Additions to the Tertiary Decapod fauna of the Pacific Northwest of North America Journal of Crustacean Biology,21(2),521-537/2001 jcb0521.pdf newly designated species are mentioned in the tags size:0,245 MB,approximately an outtake:
  25. nuts to you

    geerodenmamma{climatessoetholCE!!03.x.pdf A Miocene Rodent Nut Cache in coastal Dunes from the Miocene Lower Rhine Embayment,Germany Carole T.Gee,P.Martin Sander,B Petzelberger/Palaeontology 46/6-2003 Read this one a couple of days ago. Less than 2 Mb,and very highly recommended the authors link micromammal functional ecology,paleophytogeograpy,paleoclimate and stratigraphy in an engaging way
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