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Found 11 results

  1. I took a break from Lee Creek and Bone Valley matrix and worked on some Waurika matrix. This matrix was so much fun to go through. Every was a first for my collection! I believe that I identified everything correctly but if you see anything that is wrong please let me know. I will be adding more to this post in the near future.... @sharkdoctor Thought you would enjoy the pictures! Dimetrodon limbatus claw 5MM: @Bobby Rico @dinodigger From previous posts I have read, this is right up your alley. Diplocaulus Jaw 2MM: Shark tooth I have not found anything that shows this type of tooth for this location. I think it might be a contaminant? @Al Dente How cool is this 2MM piece of matrix with a Barbclabornia luederensis tooth in it: Orthocanthus platypternus: Tons of different shaped Orthocanth shark denticles: This one looks like two that are still attached together More variety of teeth pictures to come!
  2. denticles

    From the album Devonian Shark Fossils

    I found quite a few denticles and other bits of these cool early sharks. The distinct denticles associated with Omalodus are present as are denticles that are associated with Phoebodus and Antarticlamna like sharks.
  3. Shark-like denticles (1)

    From the album Harding Sandstone

    Possible early shark or shark-like denticles. Magnification 40x.
  4. Shark-like denticles (2)

    From the album Harding Sandstone

    Possible early shark or shark-like denticles. Magnification 40x + iPhone zoom.
  5. Ostracoderm tubercles/denticles

    From the album Harding Sandstone

    Magnification 40x.
  6. denticles

    From the album Post Oak Creek

    A collection of denticles from sawfishes and possibly sharks.
  7. DSDI between 0.8 and 1.2

    Hi I have a question, I went back since I had some time and re measured my Tyrannosaur tooth denticles. But there both the same size, the Mesial and Distal are both 6. And the DSDI is 1, what would this mean? Thank you!! @Omnomosaurus, @Troodon
  8. much to my shagreen

    HERE Diversity of dermal denticle structure in sharks: Skin surface roughness and three-dimensional morphology Madeleine V. Ankhelyi , Dylan K. Wainwright , George V. Lauder Journal of Morphology. 2018-00;1–23 recommended,and then some size: about 7,1 Mb
  9. Nanotyrannus or Dakotaraptor?

    Hi all, I am new to the forum and new to collecting =) I recently obtained this nice tooth labeled as Dromaeosaur sp. premax. tooth - I would like to get a more refined ID if possible. It was found in the Hell Creek Fm., Powder River Co., Montana and measures 15/16". Denticle count per 5mm is distal 18, mesial 24 (not many denticles visible mesial though). I found a thread here stating it is possible to distinguish Nanotyrannus from Dakotaraptor teeth by the shape of the denticles - however I find this very hard as rookie. Any help is appreciated!
  10. Microfossils From Shark Tooth Hill, Ca

    Not to long ago, forum member Caldigger sent me a box of Shark Tooth Hill bonebed material. I finally finished going through it and photographing them today. I only took pictures of the best ones, and I have a lot of other partials. I managed to take these pictures with an extremely simple setup: I cut a hole in the bottom of a clear plastic cup, stuck the bottom of my microscope's lens through it, and voila Feel free to correct me in any wrong identifications. Here are some Squalus to start us off: I think they are S. occidentalis. Here are some basking shark teeth, Cetorhinus: Carcharhinus sp.: Some dermal denticles: Tiger shark tooth, Galeocerdo aduncus: Continued in next post.
  11. Some More New Lee Creek Micro's

    Here are some more of my Lee Creek Micro Teeth from the last week or so. Hope you enjoy and feel free to correct my ID if you do not agree. A few denticles Ray Teeth Nice little Tope, Galeorhinus sp. Galeocerdo aduncus? Cat Shark, probably Scyliorhinus Odontaspis sp? and a Very Nice little Carcharias cuspidata
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