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Found 1,678 results

  1. Fungal endophytes in a 400-million-yr-old land plant:infection pathways, spatial distribution, and host responses Michael Krings, Thomas N. Taylor, Hagen Hass, Hans Kerp, Nora Dotzler and Elizabeth J. Hermsen New Phytologist (2007) 174: 648–657 nothiafungalinfepatholkringstltaylnewphytolkerpdotzl37.2007.02008.x.pdf NB .:Chytridiomycota, Glomeromycota, Ascomycota, Peronosporomycetes are known from Rhynie
  2. Spring of 2020 We took advantage of the time off and the break in weather to hunt one of our favorite streams here in Western New York. This was just a spring scouting mission to see what was exposed after the ice and snow has melted. Some of the more interesting finds were a crinoid crown (very rare for this locality) possibly Logocrinus, Spinocyrtia granulosa open with both valves, Orthospirifer marcyi, a large Megastrophia concava cleaned by nature with epibionts, and 3 small nearly complete Greenops. We also found many small Favosites coral colonies, large Heliophyllum corals, and 8 different species of brachiopods. Happy Collecting!
  3. LINK size:Approx. 4,3 MB Recognition and significance of Upper Devonian fluvial, estuarine, and mixed siliciclastic-carbonate nearshore marine facies in the San Juan Mountains (southwestern Colorado, USA): Multiple incised valleys backfilled by lowstand and transgressive systems tracts James E. Evans ; Joshua T. Maurer ; Christopher S. Holm-Denoma Geosphere (2019) 15 (5): 1479–1507.
  4. Crinoid segments or not a fossil?

    Found on blackstone river NWT Canada. Not sure what formation it is but its either devonian or cretaceous nothing between. My best guess is Fort Simpson formation so late devonian.
  5. revista espanola de Paleontologia,extra/1992 Un cas remarkable d'epigenie chez une notanopliide(chonetacea,Brachiopoda) du Devonien de Bolivie epigenieaberradevonidiagenesrevesp(biomintapho)bolivamericatapho18. bRacheboeuf.pdf First off the bat:THIS deserves to be read A:burial in the sediment B:replacement of the secondary calcite layer by silica C: dissolution of carbonate of the secondary layer(NOT recrystallized),formation of clay minerals D: final state:dissolution of the external mould of both valves Selective,rapid centripetal diagenesis NB: spiriferids in the same concretion nearby do NOT show this form of preservation morphology: the decalcified specimens are SMALL and have a thick shell
  6. Devonian cephalopod prepwork

    I have acces to a more powerfull compressor since last week, so the past few days we have been quite bussy prepping lots of fossils. Those are some of my late devonian fossils I have prepped, this is my favorite one to start with, not only does it have 2 cinds of goniatites but I found it at adifferent location than the one I usualy prospect. Manticoseras sp and Tornoceras sp. Late Devonian ( Frasnian ) Nismes ( Belgium The next pictures ar all from my usual location near Chimay ( Belgium) (can you spot the intruder in the next few pictures? )
  7. Devonian Catskill Fm unknown

    I was wondering if this is even a fossil or some kind of weird rock formation I found. It’s from NEPA in part of the catskill formation. Let me know what you guys think!! Basically all I’ve ever found there is trace fossils so I wasn’t sure if this is even anything. Thanks all!
  8. Hey everyone, Back again. Couldn’t resist lol. I figure I could offer up some positivity during these uncertain times. Unfortunately it’s getting pretty serious in New York State with C19 cases blowing up. Our family business is under some stresses and I had to make some difficult decisions today so this post is also a little therapy for me. I really love paleontology it allows my mind to wander away from the present! I got back out into the field again this past weekend on Saturday 3/14/20 and Sunday 3/15/20. This time of year I have very little to do other than go hiking/collecting on weekend. Summer activities aren’t here yet and collecting during those hot summer days can be rough. I’m itching to do more exploring for new locations in New York but I’m still drawn to the classics like Cole Hill. On Saturday 3/14/20 figured I’d check out the Middle Devonian Delphi Station Member of the Hamilton group in search of Dipleura. Still dreaming of an articulated specimen but I’m always happy with some nice cephalons. I took a couple field shots. They always look so nice fresh and wet haha. 2 nicer cephalons a nice inflated cephalon Some smaller cephalons Giving the pygidiums some love. One was big!! This looked interesting. Not sure what it is exactly. gastropods and bivalves!! A flattened cephalopod and I think that’s a branching bryozoan. Needs to be glued together. I didn’t get the complete specimen but I still enjoy the location. Does need some work to get into the bedrock. It’s getting tough to find places to work. Mother Nature helps out as time goes. up next is my Sunday 3/15/20 trip to DSR and I did really well!! Finally scored the Greenops I’ve been looking for! stay tuned
  9. Fossil from the Onondaga Formation

    Is this a fossil or geologic?
  10. devonian german translation/ clarification

    Hi guys bit of a weird request, any german members on here please could you help me translate some of these and everyone else, please could you help me confirm the id's, you can never be too sure, and add any info you know, e.g formation, thanks so much, will
  11. Having struck out over an hour, I decided to turn over “just one more” slab, and bam! Nearly had a heart attack!
  12. Devonian placoderm?

    Hi all! I pulled this fossil out of Red Hill, a Devonian site in central Pennsylvania. I thought it looks like it could possibly be part of a placoderm but I’d love to get some help with further identification. Thanks in advance!
  13. Extraction

    Spent seven hours in the field today. Not much to show for it other than the usual, but I thought I'd show the process on how I extract a big rock. I am of the belief that there is no rock so immovable that my use of persistence and force cannot dislodge it. This one has been one of many that I have flagged for future extraction. First step was to clear off the debris to get a sense of just how big this one is. You can't make out the depth on this one yet. The next step was to exploit a crack to pop off one of the upper pieces.
  14. Bone, tube, or plant?

    I found these at an Oriskany Sandstone exposure in Blair County Pennsylvania that is normally overgrown. There was abundant crinoid & shell material around. There is no internal structure, and the larger specimen seems to show some faint longitudinal striations. ID suggestions appreciated ad. I was thinking Mud tube, filled burrow, cephalopod /shell cast, or plant bits. I couldn't find any similar pictures in my resources.
  15. Hi, I am doing an emergency Fossiling trip to Western New York State. My entire family is very high risk for corona, and I am just leaving my college, where there were a few cases of it. Although I technically Do not need to quarantine, I am planning to spend at least a week alone before I go home to make sure I am asymptotic. That being said I will be spending the week hunting the shakes of New York State. I have been to deep springs and I just wanted to make sure that it is still viable. I am also possibly going to go to penn Dixie, but my main goal is to isolate and get some quality fossil hunting done. Any possible fossil hunting spots would be much appreciated in that area or the area of penn Dixie, if they are spots that are not densely populated
  16. Hello awesome people! Im finally out of hibernation . I don’t mind fossil hunting in the winter...as long as the snow isn’t deep. It’s been deep lately lol. So the winter hunts have been non existent pretty much. We finally had a good enough thaw and a warm enough weekend to make collecting possible! I went fossil collecting and fossil prospecting this past Saturday and Sunday (March 7th and 8th 2020). It was great getting back out in the field. what a sight!! The snow didn’t bother me I was happy it was well above freezing for once. South central New York tends to get more snow and it hangs around longer it seems ha. Anyway....I did a little exploring and was able to find more Eldredgeops specimens in a few different spots in the upper quarry. It seems if you want to find Eldredgeops you have to go to the upper parts of the quarry. Personally, I’ve only found 1 Eldredgeops cephalon In the bottom 2-3 meters of the quarry. Doesn’t seems to be any specific layers but more of an increased occurrence in the sequence. It would be interesting to try and track the shift in fauna to see if it correlates to a shift in lithology/environment. It’s a very noticeable thing that goniatites occur in the upper levels of the quarry as well. If I remember correct DSR has been described as having a coarsening up sequence in the literature. I bet extra analysis would support that idea. It’s a fun place to collect and get into deep thought about “how the heck did these fossils get here like this?”. It would be fun to try and collect/catalog data from DSR. It’s been a looong while since I made a detailed stratigraphic section. I always label my fossils (location+date) but maybe I need to start including elevation in the quarry....hmmm Anyway.....onto the AWESOME finds from DSR ........plus 2 small finds from a prospecting spot. scale bar used in specimen photos are all centimeter scale
  17. 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 commonly observe the item of interest; paler orange indicates times in earth history to less commonly observe the item of interest. White indicates very little to no practical probability of observing the item of interest. Please keep in mind that the listed indicators are things like “conspicuous horn corals,” purposefully declining to address rare encounters with groups of low preservation potential, low recognizability, etc. Got additions/amendments, especially for the groups mentioned above? Toss them in the comments below! Thank you..... https://docs.google.com/spreadsheets/d/1tVm_u6v573V4NACrdebb_1OsBEAz60dS1m4pCTckgyA
  18. I'll be parking all my trilobite hunts for the year in this thread. With winter ending much sooner than we are accustomed to up here, it's about time to get back into the hammer-swing of things. This year is an ambitious one, no less on account of having spent some quality time with old literature, maps (new and old), to plot out a series of areas to prospect all across the province. A significant amount of fieldwork is planned as part of a broader research project. This past weekend was the season opener for me, with temperatures hitting about 4 Celsius on Saturday, and near 12 Celsius on the Sunday. By now, almost all the snow has burned off, with just a few shadier spots remaining. This is the view as I set out through the bush around sunrise. The ground was still frozen, which was fine as it made trekking over mud much easier.
  19. Early Sea Life

    From the album My Collection

  20. Ivoites sp.

    From the album Invertebrates

    Ivoites sp. Early Devonian Emsian (early) Bundenbach Rhineland-Palatinate Germany
  21. bivalves and orthocone

    Also from @Kane, i'd like a little help to determine those devonian ones 1) From Deep Springs a) 2.4 cm hight, 3.2 cm width Grammysioidea arcuata ? b ) Modiomorpha ? Grammysia ? 4 cm hight, 2.5 cm width 2) Widder formation, Eifellian : a) 2.5 cm hight, 1.7 cm width b ) 4.7 cm hight, 2.9 cm width for the taller and 1.5 cm of thickness for the other one.
  22. Leicester Pyrite Member. This layer between the Windom and the Geneseo black shale represents a sea of death. I find very few types of fossils in this hard to process layer of solid pyrite. Well preserved cephalopods and Placoderm armor (Placodermi is a class of armored prehistoric fish) are the most common fossils found. This very thin horizon can be easily found in the outcrop if you just look for rust dripping down and staining the grey shales below this pyrite layer. Every year or two, a piece of Leicester Pyrite will fall from its position high up in the outcrop and slide down to the creeks edge. It takes a lot of work to process the pyrite for fossils. Every blow with your hammer delivers the strong smell of sulfur and a ton of sparks. The reward for all this patience and hard work are fossils preserved in brilliant fools gold. This unit is also the only rocks in my area that routinely contain the armor of Placoderm fish. Click this link for a detailed description of this unusual formation - http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.835.6976&rep=rep1&type=pdf&fbclid=IwAR0qdFymJq-Hd1_SqU3j3yDw5Trl0ih_KohTv-26Du3b1m9g9s2IYKlW0Xc
  23. Animal or mineral?

    I thought this was coral when I plucked it from the creek, but I'm not so sure now. 8 cm x 8 cm Kosciusko Co., northcentral IN.
  24. Saturday we went back to the south of Belgium to check out the quarry where I like to hunt for goniatites. The last 6 months there was litlle activity in the quarry and I was hoping that things had changed by now and the would have dug further, but alas there stil was no change. Still the bad weather and the storms of this winter cleaned out a lot of debris, we did find some nice fossils. At 1 pm we had to give up searching and ran back to the car due to heavy downpour and wind. Start of the day, gray and windy , but still dry: ptospecting the rubble , the first fossils apear: A big goniatite in the mud: Carinoceras sp. some parts of the shell missing. peeking out of the dirt: A little game for the TFF members, find the goniatite: the 2 best finds of the day: From Natalie a cute piece of placoderm: For me, I picked up a crinoid calix, I still have to remove some of the sediment around it: And we brought this one home to show to@Tidgy's Dad a large brachiopod
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