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  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

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  1. Marco90

    Striatolamia macrota

    From the album: My collection in progress

    Striatolamia macrota Agassiz 1843 Location: Morocco Age: 56-48 Mya (Ypresian, Eocene, Paleogene) Measurements: 1,8x2,8 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Selachimorpha Order: Lamniformes Family: Odontaspididae
  2. Harry Pristis

    Eocene Perissodactyl

    From the album: TEETH & JAWS

    Plagiolophus (and sister taxa) are palaeotheres, a successful and variable family of perissodactyls (horses, rhinos, tapirs, et. al.) in the Eocene of Western Europe. Not true horses, palaeotheres may be the ancestors of horses. Plagiolophus represents one genus of palaeothere, extinct since the Oligocene. Plagiolophus minor, a browser, was the only member of its family to survive more than fleetingly the mammalian faunal turnover, the "Grande Coupure," which occurred during the earliest Oligocene in Europe. La Debruge is one of about 15 terrestrial faunas (fossil remains of all kinds: pl

    © Harry Pristis 2014

  3. I'm finally getting around to posting pictures of this Moroccan shark tooth, which I believe is either a transitional Otodus obliquus or a transitional Palaeocarcharodon orientalis. My original thought was Otodus but @Al Dente flagged in the mailbox thread a few weeks ago that it might be Palaeocarcharodon instead. Any thoughts on this one? The tooth measures 49 mm on the slant and is 39 mm wide across the root.
  4. Balkanatolia: the forgotten continent that sheds light on the evolution of mammals, CNRS News, February 22, 2022 Balkanatolia: the forgotten continent that sheds light on evolution of mammals. UPI, February 22, 2022 Scientists Discover the Long-Lost Continent ‘Balkanatolia’ The landmass existed 40 million years ago and may have facilitated the migration of Asian mammals into Europe. Becky Ferreira, Vice, February 23, 2022 the paper is: Licht, A., Métais, G., Coster, P., Ibilioğlu, D., Ocakoğlu, F., Westerweel, J.,
  5. Hello everyone!)) Need help of paleontologists and paleoichthyologists with identification of eocene shark teeth from Russia. I'm not professional, just a fan and rooky, so I choose possible species options for every tooth, according to books and scientific publications which I have. Hope I make right something at least. Be glad and thankful if somebody will help me figure it out)).
  6. O'Leary, M.A., Bouaré, M.L., Claeson, K.M., Heilbronn, K., Hill, R.V., McCartney, J.A., Sessa, J.A., Sissoko, F., Tapanila, L., Wheeler, E.A. and Roberts, E.M., 2019. Stratigraphy and paleobiology of the Upper Cretaceous-Lower Paleogene sediments from the Trans-Saharan Seaway in Mali. (Bulletin of the American Museum of Natural History, no. 436). http://digitallibrary.amnh.org/handle/2246/6950 Warning: the low-resultion PDF is about 204 MB and the high-resolution PDF is about 383 MB. Yours, Paul H.
  7. In the September 2021 issue of "Natural History" magazine, there's an article, "The Trans-Saharan Seaway," by Devin Reese, Robert V. Hill. and Leif Tapanila. Anyone who collects fossil shark teeth knows Morocco and other parts of northern Africa were submerged by an inland sea as recently as the early-middle Eocene but there was also an arm of the sea that cut south all the way from what is now Algeria to what is now the Gulf of Guinea. The article summarizes the work of a team of geologists and paleontologists across a ten-year period in the early 2000's. It reviews a number of fossil find
  8. I_gotta_rock

    Coprolite lovers, Help!

    Serious, experienced replies, please! This 0.5 cm long object is attached to a broken coprolite from the Eocene/Oligocene of NW Nebraska. Trying hard to figure it out. Wrong twexture for a tooth and it doesn't look like a seed, either. I have a guess, but right now a guess is all I have. Any coprolite specialists out there? I know the pictures could be better, but I don't have a microscope out here in the field.
  9. On Tuesday, I made a trip back to the East Texas creek where I had found micro teeth last month. This creek is a Kincaid Formation outcrop. I had found the one and only productive area there just before I had to leave last time, so wanted to explore it better. Rain threatened the entire time I was there Tuesday, but it didn't really rain hard until I had gotten back home. Unlike my last time there, I found very little soft matrix on top of the limestone this time. At first, I wondered if it was just because our dry spell lately had hardened everything, but the more I explored, the
  10. I just got back from an amazing and very fruitful week of fossil collecting on the White River Formation in northeastern Colorado. The White River Formation is a very easy and fun rock unit to collect vertebrate fossils on. The White River Formation was deposited during the very latest Eocene and the early Oligocene, though the faunal diversity in the areas I was collecting on suggest it was laid down during the Orellan North American Land Mammal Age, which centers on around 33 million years ago during the Rupelian age of the Oligocene Epoch. I am very lucky to have a grand uncle
  11. The dinosaurs didn’t go out the way you think they did — study The paper is: Pickersgill, A.E., Mark, D.F., Lee, M.R., Kelley, S.P. and Jolley, D.W., 2021. The Boltysh impact structure: An early Danian impact event during recovery from the K-Pg mass extinction. Science Advances. Vol. 7, no. 25, eabe6530 DOI: 10.1126/sciadv.abe6530 Yours, Paul H.
  12. There is a new publication on fossil peccaries from North America now available online, if anyone is aware: Prothero, D.R., 2021. The systematics of North American peccaries (Mammalia: Artiodactyla: Tayassuidae). New Mexico Museum of Natural History and Science Bulletin 85: 1–76. https://books.google.com/books?id=fJcwEAAAQBAJ&newbks=0&hl=en&source=newbks_fb This publication provides a comprehensive overview of fossil peccaries from North America, and also erects three new genera, of which two were assigned to Prosthennops.
  13. How the Dinosaur-Killing Asteroid Spurred the Evolution of the Modern Rainforest New evidence from fossil plants shows today’s South American rainforests arose in the wake of Earth’s fifth mass extinction. Smithsonian Magazine Prior to the Chicxulub impact, rainforests looked very different Plant fossils from Colombia show a turnover from conifers to today's forests. by Doug Johnson, Ars Technica, April 1, 2021 Paper Carvalho, M.R., Jaramillo, C., de la Parra, F. et al. 2021. Extinction at the end-Cretaceous and the origin of modern
  14. I found this on online and am considering on getting it. Also, I'm new to online and don't know much about it.
  15. Svetlana

    Paleogene-bone id

    Good evening. I need your help. This bone was found in Paleogene sandstones (not redeposition, bedrock) next to a petrified opalized tree. Replacement is visible on the break. Who do you think it could belong to? Thanks! Have a nice evening
  16. Praefectus

    Otodus sokolovi

    L1: 7.6 cm L2: 6.2 cm W: 6.0 cm
  17. I propose to show us your Cenozoic corals. It is not necessary that it are identified although it would be better. What is necessary is that it are dated. Ok? Come on, I'll start. Cyathoseris castroi (Mallada, 1887) Lutetian South Pyrenean basin
  18. 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
  19. Link: Two new species of Mennerotodus Zhelezko, 1994 (Chondrichthyes: Lamniformes: Odontaspididae), from the Paleogene of the southeastern United States Abstract Mennerotodus Zhelezko, 1994, is an extinct lamniform shark known to occur in Paleogene strata of the Tethyan region of Asia and Europe. Although only a single species has been named, multiple subspecies have been erected and used as biostratigraphic tools in Asia. The genus has not been reported with confidence outside of the Tethyan region, but we have identified two new species of Mennerotodus from Paleogene deposi
  20. Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to com
  21. KingSepron

    What are these shells?

    It was found in South East London, in a fossily area. Found 3 days ago and cleaned today.
  22. KingSepron

    Some sort of Gastropod

    Found at a paleogene site in South East London
  23. I found this bone in the san sebastian limestone, in Puerto Rico. I always find interesting fossils there, but this is the first bone I collect. There have been skeletons of extinct sirenia found in this exact same place, so maybe it could actually a fossilized bone from an extinct species. I have no clue when it comes to bones though, so an expert is highly apreciated.
  24. will stevenson

    Abbey wood microfossils

    Hi guys I found all this stuff searching through abbey wood micro matrix I collected last Wednesday and I was wondering if you could help me ID any of it thanks in advance location:Lesnes abbey wood, london age:paleogene formation: blackheath member, Thanet formation 1. Some type of fish jaw? 2.reptile or fish vert? 3.coral? 4.fish bone? 5.fish vert? 6.coprolite? 7.fishvert?
  25. will stevenson

    Mammal microfossils

    Hi guys I’ve posted this in a separate thread as I am hoping to get an ID on them in time for fossil of the month, any ideas? (Second one might not be a mammal just checking) also is the bone avian? from abbey wood paleogene blackheath member Thanet formation
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