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Found 37 results

  1. 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
  2. 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?
  3. 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.
  4. The fossil record of Antarctic land mammals

    Gelfo, J.N., Goin, F.J., Bauza, N., and Reguero, M., 2019. The fossil record of Antarctic land mammals: commented review and hypotheses for future research. Advances in Polar Science. 30(3): 251-273 doi: 10.13679/j.advps.2019.0021 (open access) http://www.aps-polar.org/paper/2019/30/03/A190814000002 PDF: http://www.aps-polar.org/paper/2019/30/03/A190814000002/full Gelfo, J.N., López, G.M. and Santillana, S.N., 2017. Eocene ungulate mammals from West Antarctica: implications from their fossil record and a new species. Antarctic Science, 29(5), pp.445-455. (open access) https://www.researchgate.net/publication/318350360_Eocene_ungulate_mammals_from_West_Antarctica_implications_from_their_fossil_record_and_a_new_species https://www.researchgate.net/profile/Javier_N_Gelfo Yours, Paul H.
  5. San Sebastian Limestone

    So I went to this river thinking i was going to have a blast cannon balling into the deepest areas except I found an excellent specimen and spent the rest of my day collecting amazing fossils.
  6. GMR find that has me clueless

    Hey-oh! I found this while at GMR and I'm clueless as to what (if anything) it is. I've been though my fossil books and online but the curvature and the indention marks have me puzzled. I've not found something like this before. My luck it is a weird curious rock.. if it is, I'm just going to imagine it's a meg eye lid or something hahaha As always, I welcome your thoughts and appreciate you all Steve
  7. something in the way it moved

    ajslocomeigenshmathemaquantmethodrose93.11Macleod.pdf Norman Macleod and Kenneth D.Rose: Inferring locomotor behavior in Paleogene mammals via eigenshape analysis American Journal of Science,v.293-A,1993 Given that the Paleogene was a time of incipient mammal diversification...
  8. Please help to identify lizard osteoderm

    Dear Guys, Few months ago when I still was in Varena town I found this tiny osteoderm (probably lizard) in dolomite erratic with some other remains. By rough surface texture the fossil looks similar to Helodermatid but lizards consist of many families... Please help to identify this remain to know the age for sure, I would think it should be from Paleogene. Any help will be appreciated! Best Regards Domas
  9. Before These Parasitic Wasps Finished Devouring Live Flies, They Became Fossils. In fly pupae that turned to stone, scientists found evidence that wasps have been infesting other insects for tens of millions of years. By Nicholas St. Fleur, Aug. 28, 2018 https://www.nytimes.com/2018/08/28/science/wasps-parasites-fossils.html Digitally Resurrected: Parasitic Wasp Xenomorphia resurrecta Deposits An Egg in a Fly Pupa (IMAGE) https://www.eurekalert.org/multimedia/pub/179216.php The paper is: Thomas van de Kamp, Achim H. Schwermann, Tomy dos Santos Rolo, Philipp D. Lösel, Thomas Engler, Walter Etter, Tomáš Faragó, Jörg Göttlicher, Vincent Heuveline, Andreas Kopmann, Bastian Mähler, Thomas Mörs, Janes Odar, Jes Rust, Nicholas Tan Jerome, Matthias Vogelgesang, Tilo Baumbach and Lars Krogmann, 2018, Parasitoid biology preserved in mineralized fossils. Nature Communications 9, Article number: 3325. Article | Open | Published: 28 August 2018 https://www.nature.com/articles/s41467-018-05654-y Yours, Paul H.
  10. In the current (July-August 2018) issue of American Scientist magazine there's an article on champsosaurs. Anyone who's collected Late Cretaceous fossils in Montana, the Dakotas, Wyoming, or southern Canada has probably found a few. You tend to get just a paragraph or two about the group in mainstream science articles about animals that survived the K/T extinctions but there's a whole article about them. Check out your local Barnes & Noble if you don't have online access.
  11. unknown fossil

    A Late Cretaceous - Early Paleogene flint from southern Poland, full of fossils - mainly dasyclad algae and forams, I think, possibly some bryozoans too, and... a sun-shaped object. Any ideas?
  12. Hi, I've just got back from one of my collecting trips to Bouldnor Cliff and picked up an odd mammal tooth crown that I was hoping I may be able to get some help with. The specimen constitutes part of the crown and the roots of an as of yet unidentified tooth (possibly molar?). What struck me about it upon picking it up is that the morphology of the tooth and it's roots do not resemble the usual (and common) dental material from Bothriodont anthracotheres which constitute the vast majority of mammal finds from the upper Hamstead Mbr. I've compared it to the Bothriodon teeth and jaws in my collection and can't find a match with either upper, lower or anterior dentition. The specimen (although partial) is also considerably bigger than the anthracothere teeth, so all in all I feel fairly secure in eliminating them as a possibility. I was wondering if it's possible this may be a piece of entelodont tooth. The Entelodontidae are represented in the upper Hamstead Mbr. by Entelodon magnum, although the material is restricted to isolated teeth and very rare. Unfortunately the occlusal surface is missing which makes it impossible to determine whether the tooth was bunodont or not, however the crown does seem to be quite "bulbous" at it's boundary with the roots, which is a feature I've seen in some entelodont teeth before. That said I don't want to rush to conclusions. If anyone has an experience with entelodont teeth or material and is able to help it would be much appreciated, as this would be a particularly exciting find! Thank you, Theo 1. Lateral view showing contact between crown and roots 2. Lateral view showing the surface where the tooth has been broken revealing inner dentine 3. Occlusal view 4. View of the partial roots on the underside of the specimen 4.
  13. I am planning to head over to Green Mill Run in North Carolina this coming weekend (6/16/18) to do some hunting. I have done a little research but haven't come across too much. I know there are lots of shark teeth, as well cretaceous, paleogene, and neogene fossils. I was curious if anyone has been, and if so what some of the hot spots might be. Not sure if I should head closer to the main river, or stay within the smaller channels to search. Will probably do some visual hunting as well as sifting. Any information would be greatly appreciated!
  14. NICE!!http://journals.plos.org/plosbiology/article/file?id=10.1371/journal.pbio.2001663&type=printable 51 Mb,highly recommended, first description of a new species,Alcione. A cladistic analysis is included,BTW. Very ,very solid documentation of the material
  15. Mole Tooth Fragment

    Fragment of M3 from a talpid (cf. Myxomygale sp.) collected through screen washing of matrix from the White Band.
  16. Hi, I headed out for a full day of collecting at Hamstead on Saturday, and thought I'd share how it went. I reached the beach at Hamstead Duver around 9am and began searching the foreshore. The finds on this part of the coast are washed round by longshore drift, but it can be a productive section. This was definitely the case on Saturday, within the first 20 odd metres I picked up various pieces of trionychid carapace, Emys fragments, and the worn trochlea of an anthracothere humerus. I continued west along the coast before reaching the slipway (a disused boat launching ramp, apparently used by the US military in preparation for the Normandy Landings) the point where Hamstead Cliffs begin. Having not been able to visit in nearly a month, and after weeks of pretty violent storms over Christmas and the New Year, the coast at Hamstead Ledge has now completely changed. Most of the sand and gravel has been taken off the beach leaving large exposed areas of Bembridge Marls strata on the foreshore. The junction bed between the underlying Bembridge Limestone and Bembridge Marls is also now visible (usually obscured by sand and gravel). The Bembridge Limestone Fm. lays beneath the Bouldnor Fm. and was laid down in a series of large carbonate lakes on a heavily forested sub-tropical coastal plain stretching across what is now the northern Island. At 34.0 million years ago rising sea levels flooded the plain and the estuary/lagoons of the lower Bembridge Marls were deposited, which can be observed in the low cliff face. (A small normal fault can be seen in the Bembridge Marls highlighted in yellow, additionally the 'thin white horizon' is the western limits of the famous Insect Limestone. However it is un-lithified and does not produce insects at this locality) The largest change however was an enormous landslide just west of the ledge in the high cliff face. As well as several smaller falls and slips, this slip has littered the beach with clay debris and small trees. It's on the site of a large mudflow from last winter, I reckon the heavy rain saturated the already weakened area and triggered a large scale failure of the cliff face. I checked through the debris (and the exposed strata) and found some very nice pieces, including a huge piece of trionychid hypoplastron (the largest turtle piece I've ever found), a fragment of alligator jaw, a large fish vertebra, and two large baso-occipital bones from Bowfins (Amia sp.). As the beach was covered with clay blocks the foreshore wasn't very productive for ex-situ finds. As the tide dropped I moved further west towards Cranmore and beach conditions returned to normal with shingle, sand, and gravel, and a nice variety of finds. The best finds were a couple of anthracothere teeth, including a very nice canine. Coprolites were also very common as usual, most, if not all, are likely crocodilian. Further west there are exposures of the Upper Hamstead Member on the foreshore which if you're lucky turn up in-situ finds. The Upper Hamstead Member dates from approximately 33.2 - 32.4 million years ago. This time I was in luck, I spotted a large bone fragment and a piece of Emys weathering out of the clay. I checked the areas adjacent in case there was anymore associated material but unfortunately not. The bone fragment appears to be a rib. I reached Cranmore and collected some matrix for micro-sieving from the cliff face, and after collecting a few more bone fragments and coprolites, and with the tide now rising I called it a day and headed up to the main road. Overall it was a good collecting trip, with some good finds. Hopefully as the winter goes on the landslide debris is eroded away and some nice vertebrate remains are produced. Hope this was interesting, Theo 1. Huge piece of trionychid hypoplastron 2. 'Interior' view of the hypoplastron
  17. Radiolarians Record Shifting Currents

    Tiny Fossils Record Big Shifts in Ocean Currents Minerals stored in microscopic fossils hint at the subtle ways ocean currents link far-flung food webs. by K. N. Smith, Hakai Magazine, January 3, 2018 https://www..com/news/tiny-fossils-record-big-shifts-in-ocean-currents/ Yours, Paul H.
  18. Hi, For people interested in plant fossils, there is an open access 2017 eBook about the paleobotany of Australia online. It is; History of the Australian Vegetation: Cretaceous to Recent Edited by Robert S. Hill, 2017, University of Adelaide Press http://www.oapen.org/search?identifier=628112 http://www.oapen.org/search?keyword=History+of+the+Australian+Vegetation http://www.oapen.org/home Yours, Paul H.
  19. Rodent Incisor

    Lower incisor from the theridmoyid rodent Isoptychus. Collected from a thin lacustrine horizon in the Lower Hamstead Member of the Bouldnor Fm. at Bouldnor Cliff, an early Oligocene locality on the northwest coast of the Isle Of Wight, UK. Identified by mammal specialist Jerry hooker from the Natural History Museum.
  20. University researchers comb Big Horn Basin for tiny fossils by Tracie Mitchell, Northern Wyoming Daily News, July 5, 2017 http://www.gillettenewsrecord.com/news/wyoming/article_66b4b8d4-1390-578c-8e36-ffe6b51bf123.html Yours, Paul H.
  21. How Frogs Benefited From The Dinosaurs' Extinction Facebook. The two-Way, NPR, July 3, 2017 http://www.npr.org/sections/thetwo-way/2017/07/03/535383841/how-frogs-benefited-from-the-dinosaurs-extinction Extinction event that wiped out dinosaurs cleared way for frogs, Florida Museum of Natural History, July 3, 2017 https://phys.org/news/2017-07-extinction-event-dinosaurs-frogs.html The paper is: Yan-Jie Feng, David C. Blackburn, Dan Liang, David M. Hillis, David B. Wake, David C. Cannatella, and Peng Zhang, 2017, Phylogenomics reveals rapid, simultaneous diversification of three major clades of Gondwanan frogs at the Cretaceous –Paleogene boundary PNAS 2017 : 1704632114v1-201704632. http://www.pnas.org/content/early/2017/06/26/1704632114 Yours, Paul H.
  22. Hi, I officially finished school forever on Monday so to celebrate my new fangled freedom I decided to spend an afternoon and evening collecting along the Hamstead to Bouldnor coast, so I thought I'd show some of the highlights from the trip. We had very strong winds and some rain here last week so I figured that the beach conditions would be good for collecting, and the Bouldnor Fm. didn't disappoint. I reached the beach at Hamstead point around 1:30pm, and the spring tide was the highest I'd ever seen it. The tide was technically going out but along this coast the tide doesn't actually fall until two hours prior to low tide, which meant that only a small area of beach was exposed and I'd have to wait a few hours until I was able to make a lot of progress along the coast. I decided to sift through the small patches of shingle exposed to kill the time, which can often produce a lot of smaller bone fragments and teeth, especially those of crocodiles. After a few minutes I'd collected a handful of fish vertebrae from Bowfins and Unidentifiable teleosts, turtle limb bones, some sections of crocodilian or mammalian ribs, and a worn centrum from a crocodilian cervical vertebra (most likely Diplocynodon, the genus to which crocodilian material from the Bouldnor Fm. is referred). I moved on to a new patch further along the still very narrow beach and again turned up fish vertebrae, mammalian tooth roots, small fragments of crocodilian scutes, and excitingly a large distal portion of a mammal phalanx (presumably Bothriodon). The tide still hadn't moved so I hedged by bets and moved as far as I possibly could hugging the cliff edge. The base of the cliff at Hamstead Point exposes the boundary between the Bembridge Limestone Fm. and Bembridge Marls Mbr. of the Bouldnor Fm. Just above the junction are the Insect Limestone (world famous for it's insect fossils) and the Oyster Bed (a marine in-raid deposit that can produce fish remains) so I gave these beds a look over but unfortunately nothing was weathering out (Hamstead is an SSSI therefore hammering into the cliff is illegal). Finally the tide started to move out, and when it does it moves out very quick, so there was soon a large area of beach to survey and I could begin making my way down the coast. The finds started coming in thick and fast after that, scores of turtle carapace and plastron fragments (more than 100 in total), crocodilian scutes, mammal teeth, fragments of mammal bones, and much more. The best finds of the trip were by far a large crocodilian cervical vertebra, pre-molars from the anthracothere Bothriodon, and a fragment of crocodilian jaw, again Diplocynodon. But the best by far was a large distal portion of a mammal tibia found lying in the mud a few metres along from the 'Black Band'. As of yet I don't have an ID for the tibia as it is larger than would be expected for Bothriodon. There are numerous other candidates it could be, so I'll research further (if anyone has any suggestions, even if just to an order level, then that would appreciated). It also seems to have provided quite a nice home for a lot marine colonial species and plants which are currently being removed. I wrapped up the trip at 7pm and headed home, with a nice haul of finds. Now I've got a few months off before I start university I should be hunting much more regularly, all over the Island, so hopefully the summer will turn up some good finds! I'll attach images below, including of the tibia fragment. Thanks, Theo The distal portion of mammal tibia, covered in seaweeds etc. A large cervical vertebra from a crocodilian (Diplocynodon s.p) A section of trionychid turtle carapace (Trionyx s.p)
  23. Found these last weekend in a marine layer (I believe Paleogene) in Northwest Colorado. There were also numerous shells and turtle scutes laying around. They are a porcelain-like (on one side), navy blue and all diamond shaped. They were all found within 15 feet of each other and I saw nothing else like it out there. There were also 8 other broken pieces as well. Any ideas?
  24. Unknown vert from Khouribga

    Hi all, This small vert comes from Khouribga, Morocco. At first I thought it was fish, but now I'm not sure; it could be reptile. Does anyone know what it could be? Fish/reptile/something else? Please try to be as precise as possible, though I know it's hard. I don't know whether it's Cretaceous or Paleogene either. What do you think? Just give as much info as you can about this little mystery! Best regards, Max
  25. crinoids from the cenozoic,USA

    M&V this might be useful to some of you. State:Oregon
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