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Found 249 results

  1. This time let's have a look in Oligocene, one of my favorite. The Oligocene in this topic includes 2 different localities with slighlty different periods of time : Stampian (-33.9 - 28.1) and Chattian (-28.1 -23). Back in time, Europe experienced a distension at the origin of a great tear of the continental crust: the Western European rift, which produces an alignment of ditches of collapse from the North Sea to the Gulf of Lion. Lakes, with locally marine connections, occupy these ditches. The best example is the series of great Oligocene lakes of Provence. The climate is cooler and drier than in the previous era. As a result, the environment is modified: extinctions and replacements occur within wildlife. Following the refreshment, the flora has a sub-temperate character. It is thus dominated by the elements of the North European flora associated with warmer species, witnesses of earlier flora that survived the cooling. Provence at this time is covered with a series of lakes (depressions of Aix, Apt and Manosque). At the bottom of these silts were deposited on large thickness, forming limestone in thin sheets, fossilizing fauna and flora. We can discover fish, leaves, insects, and exceptionally were found crocodile, birds, bats, frogs ... The sea was close and sometimes corresponded with the lakes. The climate was tropical, from where an abundant flora composed of palms, pine trees … Finally, the Pyreno-Corsican-Sardinian massif gave way and left the sea rush into Provence, covering the lands that were previously emerged. The lakes give way to a warm and shallow sea, which I invite you to discover on the previous topic: Presentation of a Miocene outcrop form Souther France The rock is made of very thin layers which have to be opened carefully to discover the fossils. Some pictures will speak better:
  2. Oligocene Nibbler?

    I want to confirm that this bone fragment has the evidence of gnawing from a rodent or other mammal on it and if it's a common occurrence or not. Found this summer in the White River fm of eastern Wyoming. Here's both sides of the fossil-
  3. A fossil named after Burke Museum curator tells whale of a tale about evolution By Alan Boyle, GreekWire, November 30, 2018 https://www.geekwire.com/2018/fossil-named-burke-museum-curator-tells-whale-tale-evolution/ Ancient whale named for UW paleontologist Elizabeth Nesbitt Hannah Hickey, University of Washington News https://www.washington.edu/news/2018/12/10/ancient-whale-named-for-uw-paleontologist-elizabeth-nesbitt/ Newly-Described Fossil Whale Named After Burke Curator Burke Museum Public Relation http://www.burkemuseum.org/press/newly-described-fossil-whale-named-after-burke-curator The paper is: Peredo, C.M., Pyenson, N.D., Marshall, C.D. and Uhen, M.D., 2018. Tooth Loss Precedes the Origin of Baleen in Whales. Current Biology. https://www.sciencedirect.com/science/article/pii/S0960982218314143 Happy New Year, Paul H.
  4. Carcharocles angustidens 16

    From the album Sharks and their prey ....

    Carcharocles angustidens Wando River Charleston, South Carolina

    © Matthew Brett Rutland

  5. Summerville November 29 2017

    From the album Summerville, SC Fossil Hunts

    Carcharocles angustidens Summerville, South Carolina

    © Matthew Brett Rutland

  6. https://gizmodo.com/toothless-33-million-year-old-whale-could-be-an-evolut-1830739126 https://www.eurekalert.org/pub_releases/2018-11/cp-3wf112118.php https://phys.org/news/2018-11-whales-lost-teeth-evolving-hair-like.html
  7. I spent a few hours fossil hunting on two separate trips on Forest Service land in Montana. The first trip was this past spring looking for Late Oligocene - Early Micoene flora about 90 minutes outside of Missoula. The second trip was during at stint over the summer at a fire lookout tower in the Flathead where I spent just a few hours one morning looking at Devonian and Mississippian marine layers. Besides the obvious, the trips were quite different. The spring trip was a drive to a road cut on a Forest Service road while the summer trip was a seven mile hike in. Additionally the medium is completely different; flakey, brittle shale compared with big, blocky limestone. You can keep non-vertebrate fossils as long as you don't plan to sell them. Prior to heading to an area, I look through publicly available research, lectures, field trips, etc. to find possible localities. I only found limited information on possible identification of the Late Oligocene - Early Micoene flora and most of if was unpublished graduate work from a nearby site with only some overlap on species. Please feel free to correct any id's or throw new ones out! I believe these are cercocarpus, a mahogany.
  8. Summerville September 14 2018

    From the album Summerville, SC Fossil Hunts

    Carcharodon hastalis Summerville, South Carolina

    © Matthew Brett Rutland

  9. Summerville September 14 2018

    From the album Summerville, SC Fossil Hunts

    Carcharocles angustidens Summerville, South Carolina

    © Matthew Brett Rutland

  10. A new paper regarding toothed mysticetes is available online: Azucena Solis-Añorve; Gerardo González-Barba; René Hernández-Rivera (2019). "Description of a new toothed mysticete from the Late Oligocene of San Juan de La Costa, B.C.S., México". Journal of South American Earth Sciences. in press. doi:10.1016/j.jsames.2018.11.015. Niparajacetus is the second Oligocene mysticete to be described from Mexico and the southernmost occurrence of an aetiocetid-like mysticete from the Pacific Coast. I wanted to see if anyone has a copy of the this paper because there's no free access at the website for this paper.
  11. Hipposyngnathus neriticus Jerzmanska, 1968

    From the album Vertebrates

    Hipposyngnathus neriticus Jerzmanska, 1968 Menilite Formation Oligocene Jamna Dolna Poland
  12. Anthracothere Phalanx (found 2017)

    From the album Fossils From Bouldnor, Isle of Wight

    Proximal phalange from an anthracothere, probably Bothriodon based on its large size (43 mm long). Collected on the coastline at Bouldnor on the Isle of Wight in the UK. Upper Hamstead Member of the Bouldnor Formation (approx. 32 Ma)
  13. Anthracothere Tooth (found 2014)

    From the album Fossils From Bouldnor, Isle of Wight

    Tooth from an anthracothere, probably Bothriodon or Elomeryx. Collected on the coastline at Bouldnor on the Isle of Wight in the UK. Upper Hamstead Member of the Bouldnor Formation (approx. 32 Ma)
  14. Anthracothere Tooth (found 2014)

    From the album Fossils From Bouldnor, Isle of Wight

    Tooth from an anthracothere, probably Bothriodon or Elomeryx. Collected on the coastline at Bouldnor on the Isle of Wight in the UK. Upper Hamstead Member of the Bouldnor Formation (approx. 32 Ma)
  15. Bothriodon Jaw (found 2014)

    From the album Fossils From Bouldnor, Isle of Wight

    A large fragment of mammalian jaw belonging to the anthracotheriid Bothriodon. Collected on the coastline at Bouldnor on the Isle of Wight in the UK. Upper Hamstead Member of the Bouldnor Formation (approx. 32 Ma)
  16. Partial skull purchased many years ago. From Dakota Buhle { ? } Fm. About 2 1/2 " long. Ideas ?? Thanks.
  17. Large Oligocene Fossil

    This fossil was found by my uncle on the beaches of Onslow county in North Carolina. The fossil is roughly 18-19 inches long and 3-4 inches in width at its base. Any help is appreciated, ty.j
  18. White River Astragalus

    I found this little astragalus with PaleoProspectors in Wyoming in late July of this past summer. It was found during the day spent on a ranch with White River Formation Oligocene exposures. I was wondering what animal it belonged to. Leptomeryx? Poebrotherium? some sort of oreodont?
  19. Parodotus cf. benedeni (Le Hon 1871)

    From the album Pisces

    32mm. Not so sure about the info and determination on this one, therefore the cf. Picked it up on an internet auction where the only information I could get was "Parotodus, South Carolina". However, with the help of the friends on the id forum I was able to narrow down the id and also am pretty certain that it was found in a river in the Oligocene.
  20. Onslow Beach find

    Good afternoon, I found this item during a during a pre Hurricane Florence visit to Onslow Beach. It seems to have some earmarks of a bone but the shape is very unusual. I am also leaning towards it being an interesting piece of nothing.Thank you in advance for any and all assistance.
  21. These toe bones were found in association with a ton of fragments. Quite a puzzle! Any idea from these tiny hooves what I might be working on?
  22. I posted a topic - Middle Devonian of Livingston County New York - recently and decided to include the other shelves in the display case. Also a fellow member requested to see more in the room so its their fault I had many more Oligocene fossils at one time and this is what I kept over the years (either I found it or it means something to me). Im sure there will be questions for me. Thanks, Mikeymig
  23. My wife and I found these small jaw fragments in W. Nebraska earlier this month. Not sure of the ID's. Each is about 3 cm long. Help is appreciated! Jaw 1 Jaw 2 Jaw 3 Jaw 4 Jaw 5
  24. Strange Marks on Shell?

    This shell was found in-situ in a late Oligocene formation. The site represents a shallow tropical near-shore environment in what is now the Gulf of Mexico. What is strange to me is the unusual marking on it that I have not been able to determine the identity of. I want to say that it is a bite mark from something, but I really have no idea as this is really not my area of expertise. Edit: I am not referring to the borehole produced by a predatory snail, but the scratch marks near it. I figured that it would at least make for an interesting conversation. The shell measures about 2" across.
  25. Dapalis minutus (Blainville, 1818)

    Lit.: Gaudant, J., et al., The uppermost Oligocene of Aix-en-Provence (Bouches-du-Rhône, Southern France): A Cenozoic brackish subtropical Konservat-Lagerstätte, with fishes, insects and plants. C. R. Palevol (2017), http://dx.doi.org/10.1016/j.crpv.2017.08.002
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