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Found 44 results

  1. For an extreme example of a wayward marine mammal, look at the below open access paper. Valenzuela-Toro, A.M., Zicos, M.H. and Pyenson, N.D., 2020. Extreme dispersal or human-transport? The enigmatic case of an extralimital freshwater occurrence of a Southern elephant seal from Indiana. PeerJ, 8, p.e9665 Yours, Paul H.
  2. Is this a fossil?

    I have here a polar bear tooth from St. Lawrence, Alaska. I was told it was fossilized, Pleistocene to be precise. The seller had other similar teeth available on offer, in darker shades, claiming they were all fossilized and simply preserved in different ways. Ultimately, I chose this one. As far as the literature goes, it has been argued that the polar bear does go back to the late Pleistocene: Ingólfsson, Ólafur; Wiig, Øystein (2009). "Late Pleistocene fossil find in Svalbard: the oldest remains of a polar bear (Ursus maritimus Phipps, 1744) ever discovered". Polar Research. 28 (3). doi:10.3402/polar.v28i3.6131 I know coloration is not the ideal determination of fossilization, and yet I also read that the burn test wouldn't work on a tooth. Is there, then, any way to confirm if this is fossilized?
  3. Partial Jaw Bovid, Cervid?

    Found on a river gravel bar in southern MN.
  4. I know bone fragment ID's are usually left at just that "bone fragments," but I've seen some pretty amazing ID's here lately and this is my favorite little puzzle. It was found on Edisto beach which harbors Pleistocene mammals mixed with Miocene and Holocene aquatic creatures. More info on the location (including a list of mammals) can be found here: https://markgelbart.wordpress.com/2010/05/25/the-edisto-beach-fossil-site/ It's completely hollow and has what appears to be healed over bite marks. Even if it can't be ID'd, if anyone can confirm or deny if the markings are really bite marks I'd be over the moon. Furthermore, the bottom is concave. I have a photo of the bottom too if you need it, but I ran out of room for this post
  5. Uvalde gravels tooth

    I found this today in a south central Texas river...the same area produced a mastodon tusk. Thanks
  6. Pleistocene-Holocene Frags

    I know this is quite a long shot but the pores/foramen are just KILLING ME, the shape is so familiar, but I just CANNOT drag it out of my brain. Location: Southern California, Mojave Desert. Quaternary alluvium/older alluvium (depth 8 ft) in an area where mammoths and camelids have been found (3 miles northwest, 5 feet below surface). Pleistocene dry lakes lie just to the east. The bones are at least somewhat mineralized, but obviously have a pretty high level of preservation. Pictured are two separate bones with very distinct shapes/pores/etc. No bones have anything particularly diagnostic nor any obvious processes etc.
  7. Ahoi dear forum members. While reading a little bit about rudists some of the structures in picture of a broken Hippurites and the shape of Lapeirusia crateriformis reminded me remotely of a still unidentified beachfind from my last big holiday. That doesn´t say much, as apparently rudist could look like anything they wanted, but still I wonder what the fragment I found may be. Found it in the pacific driftline, broken like you see it. There are some barnacles, some serpulids, maybe a little bivalve also, but I wonder what the enclosing structure is. Any ideas? Aloha, J
  8. Dead Sea dates grown from 2000-year-old seeds By Andrew Curry, Science News, Feb. 5, 2020 https://www.sciencemag.org/news/2020/02/dead-sea-dates-grown-2000-year-old-seeds Scientists Revive Ancient Trees From 2,000-Year-Old Seeds Heard on All Things Considered, February 6, 2020 https://www.npr.org/sections/thesalt/2020/02/06/803186316/dates-like-jesus-ate-scientists-revive-ancient-trees-from-2-000-year-old-seeds The open–acess paper is: Sarah Sallon, Emira Cherif, Nathalie Chabrillange, Elaine Solowey, Muriel Gros-Balthazard, Sarah Ivorra, Jean-Frédéric Terral, Markus Egli, and Frédérique Aberlenc, 2020, Origins and insights into the historic Judean date palm based on genetic analysis of germinated ancient seeds and morphometric studies Science Advances 05 Feb 2020: Vol. 6, no. 6, eaax0384 DOI: 10.1126/sciadv.aax0384 https://advances.sciencemag.org/content/6/6/eaax0384 Yours, Paul H.
  9. 'Ghost' population of humans discovered in ancient Africa By Laura Geggel, Live Science, January 22, 2020 https://www.livescience.com/ancient-dna-sub-saharan-africa.html DNA from child burials reveals ‘profoundly different’ human landscape in ancient Africa By Ann Gibbons, science News, January 22, 2020 https://www.sciencemag.org/news/2020/01/dna-child-burials-reveals-profoundly-different-human-landscape-ancient-africa Lipson, M., Ribot, I., Mallick, S., Rohland, N., Olalde, I., Adamski, N., Broomandkhoshbacht, N., Lawson, A.M., López, S., Oppenheimer, J. and Stewardson, K., 2020. Ancient West African foragers in the context of African population history. Nature, pp.1-6. https://www.nature.com/articles/s41586-020-1929-1 Yours, Paul H.
  10. Fossil Pelican horns?

    Hello again, I just read that the American white pelican ( Pelecanus erythrorhynchos ) grows a kind of horn during mating season that is shed when the eggs are laid. Has anyone ever heard of one of those being found fossil, or subfossil? I know that keratin is rarely preserved, I am just curious. Best Regards, J
  11. Barbados Fossils

    Hi, I just came back from Barbados with lots of fossils and coral. 1. Pleistocene coral 2. Nice detailed coral 3. More modern coral and some Calcite?
  12. Hello folks, I wanted to share some photos of one of the mangrove lobsters (Thalassina) I finished prepping. It's from Darwin, Northern Territory, Australia from the Holocene-Pleistocene error. The matrix on this lobster was the hardest I've ever worked with.
  13. Possible ancient bison bones

    These bones were found just above Cretaceous gravel layer at a local DFW creek today. One the leg bones measures almost 17 to 18 inches in length. Leg bone width on this one is around 3 to 4 inches. I also found vertebra bone of bison as well. They look juvenile. These are probably either adult steppe bison bones or juvenile bones. Earlier this month, at a another creek, I also found steppe bison dorsal vertebra with rib bones within similar layer. Your opinion helps.
  14. Found this partial tooth a few years ago in some Holo-Pleistocene marine sediments on Oahu, Hawaii. There is also the chance that it is more recent, as there had been some dredging in the area, though I haven't seen any evidence at this location. Approximately half of this tooth is missing. What remains is half of the crown and one root lobe. It is 17 mm in maximum dimension. My guess is carnassial. Seal? Canid? Appreciate any and all input.
  15. Ancient life awakens amid thawing ice caps and permafrost By Daniel Ackerman, The Washington Post, July 7, 2019, https://www.washingtonpost.com/science/ancient-life-awakens-amid-thawing-ice-caps-and-permafrost/2019/07/05/335281f8-7108-11e9-9f06-5fc2ee80027a_story.html Aulacomnium turgidum - Swollen Thread-moss PDF file - https://rbg-web2.rbge.org.uk/bbs/Activities/mosses/Aulacomnium turgidum.pdf Wikipedia - https://en.wikipedia.org/wiki/Aulacomnium_turgidum The papers are: Roads, E., Longton, R.E. and Convey, P., 2014. Millennial timescale regeneration in a moss from Antarctica. Current Biology, 24(6), pp.R222-R223. https://www.sciencedirect.com/science/article/pii/S0960982214000864 La Farge, C., Williams, K.H. and England, J.H., 2013. Regeneration of Little Ice Age bryophytes emerging from a polar glacier with implications of totipotency in extreme environments. Proceedings of the National Academy of Sciences, 110(24), pp.9839-9844.s https://www.pnas.org/content/110/24/9839 Yours, Paul H.
  16. Vertebra id

    Besides of the tooth and several other bones I also found some this vertebra: I am really not sure if its a mammal vert or something. Is it even fossil? I have my doubts.... Its from the area of Ijmuiden (Netherlands), so its probably from the Holocene. Can anybody help on the id? Again perhaps @LordTrilobite or @Harry Pristis ?
  17. Fossil zooplankton indicate that marine ecosystems have entered the Anthropocene. Center for Marine Environmental Sciences, University of Bremen https://www.sciencedaily.com/releases/2019/05/190528120605.htm https://www.eurekalert.org/pub_releases/2019-05/m-cf-fzi052319.php https://natureecoevocommunity.nature.com/users/260397-lukas-jonkers/posts/49174-fossil-zooplankton-shows-that-marine-ecosystems-have-entered-the-anthropocene The paper is: Lukas Jonkers, Helmut Hillebrand, Michal Kucera. 2019. Global change drives modern plankton communities away from the pre-industrial state. Nature, 2019; DOI: 10.1038/s41586-019-1230-3 http://dx.doi.org/10.1038/s41586-019-1230-3 Yours, Paul H.
  18. benthic ecology

  19. 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!
  20. Fossilized Arizona Human Footprint (?)

    Let me start this off with two disclaimers: 1- I am sorry if this post would be more appropriate on an archeology forum. I would think that it would be fine here, however, because the "footprint" impression does appear to be fossilized. And because I have yet to join any archeology forums. I anyone has a recommendation for a good archeology forum let me know. 2- Being almost entirely engulfed in learning about just the Cretaceous of my local area, paleoanthropology is a bit out of my purview. So bear with me if I sound like I don't know what I am talking about. Because I don't. I feel more comfortable with ammonites and Ptychodus. On Wednesday night my mother brought to my attention a post by a Facebook friend of her's, Kevin, who was recently out leading a group of 4-wheeler enthusiasts along some extremely remote Arizona desert trails when he happened upon what appears to be a fossilized human footprint. He really enjoys the rugged beauty of the deserts of the southwest and has been leading groups on such 4-wheeler outings for many years. Because he doesn't have a TFF account and because his Facebook page is private, I am posting this for him. I don't know if this is a real print or, even if it is, that it would be a significant find. I just thought that it wold be appropriate to check with TFF now before it eventually erodes away, just incase it is important. My mother has been friends with Kevin on Facebook for years, and his association with our family goes back to him knowing my great-grandparents at their church in Parryton, Texas decades ago. From that long association, he seems to be the type of person that has neither the inclination or time to be faking tracks. His interest is in exploring the desert, not perpetrating weird hoaxes. My concern is not that he faked it, but that perhaps some other unscrupulous person, apparently with a lot of talent, came along the trail and did it. When this fossil piqued my interest I asked him if I could post this to a fossil forum that I belong to and he gladly allowed me to, saying that he hopes to learn as much about it as he can himself. During our conversation, he also said that he found it, "out in the middle of nowhere near Quartzite, AZ." Along with the pictures of the impression he wrote, "While I've seen several dinosaur footprints this is the first human one I've seen preserved in sedimentary rock. I'm always amazed when I think of all of the circumstances that had to come together for this to occur. Of course, I have no idea how old it is. I have been under the impression that Native American tribesman that might have roamed these area were small people, partially based on the size of the doorways in dwelling I've been to in Utah. This print is an adult and looked to be about a size 10 [about 25 to 28 cm long]. Perhaps this is older or more recent. No telling. But still impressive." To my untrained eye I don't see any obvious signs that this is faked, but I would like to know what you think about it. His didn't indicate the presence of any other tracks in the area, so either he missed them, the others are already weathered away, or more are still buried. Again, my knowledge of paleoanthropology is still wanting, but from reading theses articles (here, here, here, and here), I gather that human tracks in North America are rare but, as I see from the first article, they are not unheard of in Arizona. The first article is on a multi-track site just north of Tucson. And from the pictures in the articles, Kevin's would seem to be a very well preserved specimen if it is real. Interestingly, Mancos shows that the geology around Quartzite is very similar to that just north of Tucson, even though Quartzite is about 200 miles to the northwest of Tucson. The geology around Quartzite and Tucson is mapped as Quaternary surficial, with the age range listed as from the Gelasian (1.8 Ma) to modern holocene. Here are the only two pictures of the impression that he posted, along with his pictures of the surrounding scenery of the area. I am also including pictures of the Mancos map of the areas around Quartzite and Tucson. Hopefully the pictures are enough to at least say whether or not it is worth further investigation or an obvious fake. Thank you for your time. Fig. 1 Fig. 2
  21. the paleolimnology of a Holocene lake

    here THE SUBFOSSIL ALGAL FLORA OF THE LAKE BOLLING SØ AND ITS LIMNOLOGICAL INTERPRETATION BY E. FJERDINGSTAD København 1954 Det Kongelige Danske Videnskabernes Selskab Biologisk Skrifter,Bind 7,n.6/1954 large!!!!: 37 MB I need/would appreciate help in tagging AT LEAST PeatBurns! ampersand etc.. For anyone focusing on The Bolling* interstadial,this might(should?) be interesting *diacritic omitted
  22. If You Hate Ice Ages, Thank a Farmer

    Ancient farmers spared us from glaciers but profoundly changed Earth's climate University of Wisconsin-Madison, September 6, 2018 https://www.sciencedaily.com/releases/2018/09/180906141507.htm If You Hate Ice Ages, Thank a Farmer Chopping down forests and irrigating rice paddies boosted greenhouse gases enough to prevent the onset of a new ice age Ronald Bailey|Sep. 10, 2018 2:05 pm https://reason.com/blog/2018/09/10/thank-a-farmer-if-you-hate-ice-ages The papers are: Vavrus, S.J., He, F., Kutzbach, J.E., Ruddiman, W.F. and Tzedakis, P.C., 2018. Glacial Inception in Marine Isotope Stage 19: An Orbital Analog for a Natural Holocene Climate. Scientific reports, 8(1), no.10213. (open access paper) https://www.nature.com/articles/s41598-018-28419-5 http://discovery.ucl.ac.uk/10053186/1/Vavrus_Glacial.pdf Ruddiman, W.F., 2003. The anthropogenic greenhouse era began thousands of years ago. Climatic change, 61(3), pp.261-293. http://users.clas.ufl.edu/rrusso/gly6932/ruddiman_03.pdf http://www.whoi.edu/cms/files/ruddiman03cc_68543.pdf Yours, Paul H.
  23. Thalassina anomala, Herbst, 1804

    Given to me by a member of the Australian Fossil Club. Will add more information about the formation soon.
  24. Spisula sp. (Gray 1837)

    Shell preservation.
  25. Macoma balthica (Linnaeus 1798)

    Shell preservation.