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Found 8 results

  1. a few Ptychodus teeth to ID

    I have a few Ptychodus teeth that have no definitive ID and I’d like to change that. I’ve been researching them. I used the great Ptychodus guide on TFF, the Oceans of Kansas website and Shawn Hamms paper. I was able to comfortably ID 2 of the unknowns. Even with all the great information available, I am still not sure on a few. First one is from the Greenhorn Limestone in Kansas. This one has me stumped. I thought it was a good match for P. polygrus but I found nothing indicating that it was present in the Greenhorn. It has been found in Kansas but I only found references for it in other formations. A small tooth, at right around 1cm wide.
  2. Cardabiodon Or Cretoxyrhina

    This was found in the upper Greenhorn Limestone of Central Kansas. It seems that there has been quite a bit of confusion between Cretoxyrhina and Cardabiodon over the years. Thought I'd post some pictures so the "shark tooth people" on here could give their opinions. Ramo The last photo is the "in-situ" photo when found.
  3. Pterosaur Limb Bone

    I've been pretty busy lately, but took the time yesterday to check out a new location I spotted a couple months ago. It is the basal Greenhorn Limestone (Central Kansas). The layer is composed of very hard limestone "plates" that vary from a few inches to nearly a foot thick. Splitting of these rock usually shows numerous tiny pieces of fish bones, and a strong oil smell. Sometimes you find a shark tooth. That's what is most commonly found, but occasionally you can find something even cooler. Yesterday I made a split, and found a nice big (about 10cm) bone with one end complete, and very thin walls. I was hoping for bird, but I'm just about as happy with a pterosaur bone. The first of my collecting career, and from what I've heard, only the third from the basal Greenhorn. Ramo
  4. I was splitting some basal Greenhorn Limestone, and came across this unusual formation. It appears about the size and shape of some of the bilvalves found here. At first I thought it was modern plant material, but it was in solid rock. Under the microscope, it looks like a crystaline structure. Probably just some mineral crystals that replaced a bivalve, but not real sure. Anyone have any other ideas? Ramo
  5. Mineral Deposit In Fossil?

    I was splitting some basal Greenhorn Limestone, and came across this unusual formation. It appears about the size and shape of some of the bilvalves found here. At first I thought it was modern plant material, but it was in solid rock. Under the microscope, it looks like a crystaline structure. Probably just some mineral crystals that replaced a bivalve, but not real sure. Anyone have any other ideas? Ramo
  6. Found this tooth today at the base of the Greenhorn limestone. Appears to have no striations, but does look like a slight "cutting edge" along the back side. Hoping reptile, but I suppose it could be fish. Any guesses? Ramo
  7. I found this "thing" today while fishing at a farm pond. It was in a crumbling concretion full of clams, which are common in the area. It looks like a large piece of bone, or drift wood that became fossilized. The close-ups show the texture of the surface. Fossilized wood is not un-heard of in this area, but I'm very unfamiliar with the structure of some wood types. The internal structure looks bone like to me, but I think the surface texture looks plant like. Ramo
  8. Found a new spot for Greenhorn Limestone shark teeth today. Possibly my last hunt before heading south to Texas next week. This rock has a ton of teeth. Can't wait to get the etcher out and start preping this one. I did a little "in-field" prepping with a pocket knife to show some of these teeth off a little better for the picture. Ramo
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