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Found 24 results

  1. I just came across this article and thought it was very interesting. I hope it's okay to post the link. I also realize it's old. I had never given much thought to what a grain of sand looks like. Some of it looks like the specimens I've seen on here, only microscopic. Makes me want to check out my local beach and find a high powered microscope. http://www.boredpanda.com/magnified-sand-grains-microscope-photography-dr-gary-greenberg/?media_id=sand-grains-under-microscope-gary-greenberg-4
  2. Hello again, Last year I found this chunck of dinosaur leg bone in the Boulonnais, North of France. Jurassic sediments. See this topic: I just polished a small piece and I am very happy with the result. I made a comparison with a picture from the internet of a duck-billed dinosaur on the left and my piece on the right. You can see the growth lines! source: http://scienceblogs.com/notrocketscience/2008/08/06/duckbilled-dinosaur-defended-itself-by-outgrowing-predators/
  3. A fellow TFF member gave me some micro material from the Eocene, Meridian Mississippi . I don't know much about micro fossils so was hoping to get some info on the following? Which were all photographed next to a US nickel. photos 1 and 2
  4. hey guys, found this interesting little tooth while sorting some STH matrix. Any clue who it belongs to? Or what tooth it is?
  5. I have some rattlesnake creek micro matrix for trade( 1/4" and smaller). I am open to any trades of something I can't get here in Gainesville. I have a bunch about a gallon worth and some to dry still. The pics are from 1 cup worth. I quickly went through. I know I left some was getting tired and my kids helped. Sorry US only international cost to much. Also willing to trade for rocks and minerals, for my daughter she got a small set at school and looks threw them daily trying to ID them. lol
  6. I was shopping at Menards this morning and found this nice plastic / portable / collapsible strainer with appr. 3 mm holes. This strainer is light weight, has handles and appears that it would work nice for Micros- and at $6.99, you can't beat it.
  7. Any ideas on what this is? It comes from an estuarine upper Cretaceous formation in Eastern Mississippi. The first photo shows the tip of a needle. I'm new to micro paleo and finding it fascinating.
  8. Hey all, here are four different examples of what I believe to be teeth from the same species. To me they appear to be herbivore grinding teeth or omnivore molars. Any ideas? thanks!!
  9. My kids and I sorted through some gravel that had been given to us by a friend, from a creek that is south of the North Sulphur on private land. Here is a video of some of the finds: And here are some photos, verts first:
  10. Examining a piece of slate that I had split, I came across what I thought were some crystal formation & veins. Checked it out under a low power stereo dissecting microscope & I started thinking that this might be fossil remains of pollen & small stem or some other plant parts. Put the sample under my compound microscope with a digital camera. Attached are some photos. All are at 100x with overhead oblique lighting. To make this more interesting, I don't recall where I "captured" this rock. I would thing somewhere relatively local, central Maryland, south central Pennsylvania. Sure would appreciate some thoughts & comments.
  11. I spent a few days hunting teeth at the Ernst Quarries of Sharktooth Hill. The hunting was plentiful for the standard Miocene fossils, but I also brought home a few bags of sediment for micro. It took a while to go through, catalog and photograph, but I have the results. There is such a wonderful variety in this sediment! Here are a few of my favorites. All are shown on a millimeter scale. I will be presenting the fossils from this hunt and a previous hunt at the April meeting of the Dallas Paleontological Society, along with tools and techniques for hunting at Sharktooth Hill. Pics below include: Galeorhinus Triakis Dermal Denticles Catshark Heterodont Anterior Heterodont Posterior Triakidae (Smooth Hound Shark) Bony Fish Teeth
  12. This specimen was found in Sacha's Peace River matrix. Any ideas?
  13. I had saved a cup or so of the dregs off the bottom of a gallon bag of Peace River matrix a while ago. I wanted to see if the really tiny stuff had any more of the 'cats paw' denticles like the one I found here. ; Peace River Find For I D Please - Fossil ID - The Fossil Forum I went thru it today, and found another! This one is better preserved on the dorsal side, but doesn't have the detail on the base like the first. It is really worth checking the tiny, sandy stuff at the bottom of a batch of matrix.
  14. I found this tiny, micro sized regular echinoid in some matrix I collected at a site near my home. 2.92 millimeter across. It is from the comfort Member of the Castle Hayne Formation, Late Eocene here in eastern North Carolina. I have been attempting to ID it, but have really come up empty. It does not help that it is coated in a calcite? matrix. I have looked at it under a loupe and my digital scope. I have taken pics with a camera on the macro setting and with my scope. Very very hard to focus in sharply on it. Anyways, according to Porter Kier's "The Echinoids of the Middle Eocene Warley Hill Formation, Santee Limestone, and Castle Hayne Limestone of North and South Carolina" and the NC Fossil Club publication "Volume 1 Fossil Invertebrates and Plants" (Which I highly Recommend and is available to non-members also on the website) there are several species of regulars known from the Castle Hayne. Coelopleurus carolinensis; which has pretty much been ruled out. Immature ones are pentagonal in shape, mine is round. Coelopleurus inflatus, maybe? Cidaris pratti, which I am sure it is not. Phyllacanthus mitchellii and P. carolinensis, which I am sure it is not. Acanthechinus (Dixieus) dixie which I think is a possibility Any and all thoughts, comments or ideas are welcome as I am open to any thoughts or suggestions on this. I know my pictures are not the very best, but they are the best of what I took, over 100 total.
  15. Here is another tooth from Sacha's Gainesville matrix. It's only the crown, but I'm hoping someone will recognize it's previous owner. I'm guessing a carnivore... Thanks for looking. Julianna
  16. I found this little mammal tooth in Sacha's matrix from Rattlesnake Creek.The top most images are of the root base and the occlusal view. Can anyone tell me which critter it belonged to? Thanks, Julianna
  17. Hi, Just thought I would show some examples of the micro gastropds that are found in the Caloosahatchee fm of Florida. They all come from sieving the contents of larger shells and are between 2 and 8mm. Caecum coronellum Caecum floridanum Caecum imbricatum Cyclostremiscus dartschi Cyclostemiscus sp. Solariorbis funiculus Mioceras sp Kurtziella limonitella margaritifera Cadulus quadridentatus
  18. So I have been playing around with taking pictures through my microscopes over the last year or so and so far I have not bee terribly impressed by the quality of the images. I purchased a Celestron 2MP digital imager (http://www.amazon.com/Celestron-Digital-Microscope-Imager-44421/dp/B003DVP7CE/ref=sr_1_1?ie=UTF8&qid=1385480943&sr=8-1&keywords=digital+imager) which was quite cheap ($35) last year and the picture quality is pretty poor, which is about what I expect for 2MP. I have a DSLR camera and a mount that I have used, but I have an older DSLR without live view which makes focusing and otherwise seeing whats going on very difficult. I like being able to hook the microscope imager up to my laptop and see exactly what I am doing as I take pictures and video, or just use it as a more comfortable way to view whats going on under the scope. I want something higher quality, but the price for digital imagers over the 2MP range jumps up substantially and I want to know if anyone has used them and can speak to the quality. The one I am specifically looking at is a 5MP unit from Amscope (http://www.amazon.com/dp/B005N9ZJOU/ref=wl_it_dp_o_pC_S_ttl?_encoding=UTF8&colid=2LCNHN559KS87&coliid=I25GSNC3PICTTK). I just want to make sure I am not having quality issues from something else, as I look at the sample pictures from the Celestron adverts and they look a lot sharper than the ones I have taken (which might just be typically over optimistic advertising). I have also noticed when using my DSLR setup that the depth of field is incredibly shallow so only a small slice of the fossil is in focus. Is there anything that can be done about this other than using stacking software? I have included some photos from my Celestron unit to give an idea of the quality I am currently dealing with.
  19. I recently received some Blue Hill Shale matrix from a fellow forum member to break down and search for micro and mini teeth. After the second break down cycle I found this tooth that I am trying to get a positive ID for. It has been suggested Psuedocorax or possibly a symphyseal by another forum member. Any thoughts?
  20. I have a tooth I found in some Lee Creek matrix a couple of weeks ago that is stumping me. As soon as I found it my first thought was Anomotodon, what the heck. Then while doing some research I found where a specimen labeled as Anomotodon cravenensis was ID'd by Case (1980) Here are a few pictures, any thoughts on this. Is this what I have? Any other thoughts on ID? EDIT ... the scale is in mm
  21. All of these teeth have been pulled from reject material taken from the PCS Mine in Aurora, NC. In one of the pictures are a bunch of slender, pointy fish(?) teeth that I keep finding in my micro material. These teeth range anywhere from just a few mm long to about 10 mm. I cannot find anything remotely close to a close match. I have even searched the elasmo site with no luck. The other tooth was found in the same material. At first I thought it was whale shark, but upon comparing them to this tooth the profile just looks too different. I think I got a positive ID when I searched the elasmo site once again and reviewed pics of a basking shark tooth. I have never actually found one or seen one in person, so I guess I'm just looking for confirmation on this one. Any ideas?
  22. I started seiving again last week and found this amoungst the bits and pieces. It is from central australia and is albian in age . Found in a marine sediment. I will appoligise for the photo in advance but I havent got a macro camera so I have used the macro setting and added some shots from a digital microscope to show some detail. The scale on the grid paper is 1mm and the fossil is symetrical in shape. Thanks Mike
  23. Greetings All; Thanks in no small part to the help I've gotten here on the forums, I managed to get my fossil dig / identification class off the ground. So far we've had around 400 kids sorting through gravel from Florida and North Carolina, identifying and keeping what they find. I've been stumped by a recent find, however -- a bilatterally symetrical, roughly t-shaped thing about 4mm X 4mm. It's from the Aurora Mine in North Carolina. To me the material looks a little like urchin test, but as the shape is so peculiar I am by no means sure. The scale in the background is 5mm X 5mm. Any ideas? Regards, Don Esker
  24. Ok, I have posted this tooth in the past, but I am still wanting to be sure. I believe this is a Galeocerdo aduncus, It was found in Lee Creek spoil material. The thing is it is only 4cm wide at the root and 3cm slant length. Common sense for that size would say Tope shark, however the mesial side of the crown has fine serrations and the nutrient groove while there is not large and pronounced, and it does not divide the root. Please everyone, weigh in on this. The tooth in question, I believe Tiger Shark (Galeocerdo aduncus) : lingual view labial view A definite Tope Shark (Galeorhinus aff galeus) : lingual view labial view