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Found 38 results

  1. Hi, This summer I collected a handful of microfossils from outcrops of the late cretaceous Frenchman formation in southern Saskatchewan. The Frenchman is stratigraphically equivalent to and geographically near the Hell Creek formation, and both represent a more or less equivalent terrestrial environment and time period - that is, a terminal cretaceous swampy river delta. Crocodilians were definitely the most abundant among my finds, as well as plant fossils and nondescript dinosaurian bone fragments, but I'd like to share a few oddballs, as well as a tooth, for identification. First is this thing - it's certainly a piece of a skull, but it's a little too small for me to determine if it's fossilized or not. It could very well be from a modern animal. It may be difficult to make out in the photo, but the side without the tiny holes in it actually has some skull suture lines on its surface, Secondly is this piece, which appears to be a scute of some kind. While I encountered many crocodilian scutes on this trip, this one stood out because of its small size and completeness. I don't have a photo, but the person I was collecting with found a similar one that had what looked like enamel on the smooth side, Finally is this tooth. It's the only tooth we found, and it seems to be from a crocodilian, but I'd like a confirmation and possibly more information if possible, Side view: Lingual view: Facial view: Root: Thanks for your attention. Here's some bonus photos from the trip of a metasequoia pinecone and the K-Pg boundary as seen in the field,
  2. I really like the shape to these. I have come across sites with photos of these but I can't seem to find any info about them such as what period they may be from. These microfossils are harder to research than they are to find...phewww.
  3. Cool microfossils

    Hello all, I believe that one of these is a foraminifera, not too sure if that tiny bivalve and snail would be considered one or not. Anyone have any ideal what period these may be from? Was digging some old bivalves and gastropods out of some sandstone and came across a boulder that had hundreds of microfossils mixed in it's debris. The size range from what you see here to less than 0.50mm. Some if this stuff is really cool looking.
  4. Hi folks, we bought a sample of microfossils originated from Waurika, Oklahoma. It was really fun to search through the little pile and try to ID the pieces. The result was a short video We decided to share it hoping for comments and more interesting info from the knowledgeable audience of this forum. What's really cool about microfossils is the amount of details and often stunning preservation of tiny pieces. Does anybody know a microfossil locality in Central California?
  5. Hi all. Only one of my first few posts on here as I'm primarily a collector. However, this would tie two of my hobbies together. Microscopy and fossils! I've gone through the pinned articles on prepping, cleaning, etc. The one thing I'm still not clear on is retrieval of the matrix as easy as digging a shovel full of dirt, running it through sieves, sorting, and hunting? I'm currently living in Biloxi, MS, so I assume I'll need to travel an hour or two to get out of the marine deposit area that is constantly in and out. Thanks so much! -C
  6. Texas micro shark teeth

    Micro fossils from the pecan gap right where it meets Austin chalk, shark teeth with the roots dissolved are common here, as are baculites, if you see something you know or want to know more about say.
  7. Creek was a little flooded today made it harder to navigate, started the day with 2 dead drill battery's that I had charged the night before so I decided to move father up to look at some different exposures, started by picking up some matrix for micro's from the bottom of the pecan gap, more on that later, and then some Del Rio clay for the same, (if someone has suggestions for how to wash this faster that would be great) spent the next 2 hours picking up heteromorph mariellas.
  8. Micro trilobite

    I don't know whether to laugh or cry on this one. Found an enrolled Trilobite in my micro matrix. Gave it a nice spa treatment of hydrogen peroxide & got most of the matrix off. And then took a look at it with my dino lite & found that it has almost no head. Thing is maybe 3.5 mm across and the one thing I didn't actually expect to find. No idea if it can even be identified now, but here's the pics anyway. Pics are 45 x magnification. Jasper Creek Formation. Late Pennsylvanian.
  9. Micro shell?

    I recently bought some microfossil matrix from the Jasper Creek formation in Bridgeport Texas. Found lots of crinoid stem pieces, some about as big around as the lead from a mechanical pencil, lots of sponge pieces & quite a few Girtyocoelia Sponge ball and chain sponges. I also found what I think is a complete shell, but I'm not sure. Everything else is a tan color, but this is more of a brown & black. When putting it in hydrogen peroxide to try to clean some of the left over matrix of, it floated. So I looked at it with my DinoLite & took some pics of it. Both sides have 2 shots showing different levels & the "hinge" area. It's .5 cm at the widest. 50x magnification.
  10. Campanian microfossils

    Hi everyone! It would be amazing if any of you could help with identifying some marine microfossils I sieved. The origin is campanian (might be santonian) marine sediments. The location has yielded mosasaurs, fish, and sharks in abundance. But I have a few bone fragments that I have absolutely no clue what they are... Here are some of the mysteries:
  11. So I had bought from a certain online auction site some Lee Creek mine microfossil matrix a while back... I finally got around to looking over a little bit of it this evening. Attached are what I have found so far without any magnification.
  12. What is this seed looking fossil?

    Can you help me identify this fossil? Late Miocene/Miocene, Phillipines, Camarines Norte
  13. Fish Scale?

    Is this a fish scale? It was found in the Woodbine formation south of Denton, TX. I am new to microfossils. It may also be a small clam.
  14. I was out hunting near Spring Valley, Minnesota with @Bev and @minnbuckeye the last couple of days. As always, I was looking for coprolites. Mike came across this first piece, sitting loose in a piece of weathered matrix. While we were splitting rocks, we found a virgin layer of the source matrix. When we got back to Bev's fossil barn (everyone should have one), I took a peak under the microscope at two of the loose, irregular objects but couldn't really see much because of the powdery iron oxide coating. When I lightly rinsed them, they revealed these microscopic (calcareous) jack-shaped objects. Similar inclusions were in both objects loose objects. You can see from the broken spine on the inclusion in the lower right that they are hollow. In the other loose piece and those still embedded in the matrix, I can also see random straw-like spines of the same material. I'm not sure if these are coprolites, algal masses or something else. I have seen coprolites covered in powdery iron oxide before. Eventually I would like to free more of these from the matrix so that I can sacrifice one to get a look at the interior. Can anyone identify the little jack-shaped inclusions? The spines may have been quite a bit longer. The only things I can think of are forams or perhaps diatoms. Bev and Mike - What was the name of that cliff again? Decorah Shale? @Carl
  15. Any chance someone knows what these are? They are most probably Holocene-aged (last 12,000 years). They come from a dry playa lake setting (inland) in India - the Thar Desert. Size is about 1mm wide, and 1.5+mm long... there is a funny raised hollow insert. Would love to get some tips!
  16. Microfossil finds

    Hi all, I just got the studio equipped with a digital microscope, and I've been enjoying looking through the sediments of fossil prep work. I'm finding a lot of micro crystals, and other forms that seem like pollen, or microscopic life I also found 2 insects, which I'm not sure of their origin, they could be contamination from the room, but I'm fairly certain this batch came from caked-on sediments at the bottom of my sample container.
  17. Where to buy compartment slides?

    HI all, You know those neat microscope slide sized microfossil containers with partitions inside to hold dozens of little fossils? I think they are covered with glass too and have a black background. Where would I buy such a thing? or is it easy to make them? Your thoughts?
  18. Ostracods - unshaven

    Apparently not all Ostracods shave in the morning Subrecent, Mauritanian Shelf
  19. strange markings on cylindrical object

    This came from Walnut Creek in Austin, Texas
  20. Hi I hope someone can help me with this! I found these two very small fossils when wet sieving lower lias shell bed. They are about 2mm in size and look a bit like a cross between a crinoid and a bone-like substance. They are so small they were very hard to photograph even using the super-macro function on my camera but hopefully they are good enough for somebody to perhaps recognise what these are? I'd be very grateful as I am mighty curious! Thanks in advance. Sam
  21. Most of my fossil collecting has been Invertebrate Macrofossil collecting. Very little attention has been made to the little fossils. It is always a good idea to expand your knowledge, leave your comfort zone, go somewhere you have never been before. I find that not paying much attention to Microfossils has been a mistake. So when I saw an interesting Nummulites fossil slab for sale; I chose to purchase it. The rough cut specimen looked like it could reveal more, with a little attention. What I chose to do is give it a good high luster lap polish to see the results. So much more detail was made. Where my specimen came from was Northern Spain, in or near the Pyrenees Mtns. near Aragon. The seller didn't give much info and what he did give was in Spanish. Chasing information down on the internet I found the mixed fossils were Nummulites sp. (large ones) and Alveolina sp. (smaller ones) I have some photos of my results to share. Before polishing it looked like this: After polishing the fossils clarified, here are some closeups: Apparently these fossils are common in Spain, neighboring France and other places in the world. This is an old engraving: In Spain, the Limestone the Nummulites are in, is used as building materials like blocks, steps, pavers. I will need to do more studying of these neat looking spiral tests.
  22. Pennsylvanian Foraminifera?

    I have found quite a number of these ranging from 1-4 mm or so. They are from the Kansas City Group of the Pennsylvanian Subsystem. I don't know the name of the strata, but for the locals, these come from the road cut about 1/4 mile west of I-49 on Route 150 near Belton, MO. I have found them in large (three to six inch) nodules. I will appreciate any help you can give me with identification? Russ
  23. What are these tiny fossils?

    I could use some help with the ID for these tiny fossils. I found them in the Pennsylvanian Subsystem, the Kansas City Group, at the top of the Winterset L.S. Member and at another site in the Kansas City Group that I cannot identify (I don’t know what it is). Most of the specimens I have found were in fist-size nodules of tan/yellowish limestone. These specimens are all around 1 cm in size and the tiny nodes/spines are 1 mm or so. After having seen dozens of these specimens, I have observed that most of them consist of a round disc about 1 cm in size with the tiny “spines” pointing towards the center. Picture #3, however, shows one that is elongated rather than round. In picture #2 I have circled the specimen with the "cap" still covering most of the spines in black and circled some of the exposed spines in blue. In picture #5 I circled and area that contains the "cap" under which are the "spines". I took these photos with my point and shoot camera on a tripod and my 10x loupe held against the lense. It works surprisingly well, yet as you can tell the pictures vary in quality and are hard to focus. I use a photo editor to crop the pictures so the images you see below are about 1/10 the area of the originals. Any tips you can give me on getting better pictures of tiny fossils will be appreciated. I look forward to any help you can give me. Russ
  24. its been days I am looking for a good way to make a complete image of thin section, so we can have a very big picture but very useful for some tasks. actually I need to make an image processing software then process thins sections automatically. I know pretty much about software part. but still got problems for making very good image. 1- I tried very high DPI scanner and the results were simply not acceptable as we have very small microstructures inside some microfossils. the image is below: 2- I tried making lots of images with camera on microscope then stitch images together. the result is pretty good but changing position of thin section and capture image takes lots of time still we have stitching time too. this is the result: 3- I know we have some special devices for these cases but they are very high price and mostly suitable for universities not for personal uses 4- anyway maybe the only option is making a little machine that can automatically move the thin section on the microscope stage then automatically capture photo. so any suggestions guys? if something is not clear please answer. thanks
  25. Hi all, Here is another fun find from Sacha's Merritt Island matrix. As usual, I don't have a clue as to what kind of tooth it is (or maybe it's a claw?). The area around the base of the tooth reminds me of something you'd see at the base of an antler. Sorry parts of the specimen are a little blurry in the photo. It was hard to decide what part to focus on. I looked up every carnivore I could think of and came up with nada. Any help would be greatly appreciated! As a side note, I would like to extend a special thanks to Julianna, Marco Sr, Tony, and PA Fossil Finder for posting all your wonderful photos. It is super helpful!
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