Search the Community
Showing results for tags 'denticles'.
Found 4 results
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
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!
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.
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