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This tooth is by far one of the best Paleozoic crusher shark teeth that I have found. It measures nearly 2 inches across and is in perfect condition. It was found in the Borden Formation of Southeast Kentucky on a slab that have broken off from a currently unknown layer in the formation. It is amazing that other collectors did not see it sitting in plain site on the ground, but that's not my loss! I deliberated for a long time on two things, its ID and whether or not to prep more of it out. After a good bit of literature review and looking at my other specimens, I settled on an ID of Sandalodus sp., which is one of the larger sharks of this time period. This tooth is also unique because it comes from the Early Mississippian, which I do not get to collect very often. The tooth sat in storage for several months until I acquired a new pneumatic scribe for Paleontological use. This tooth is also the only Paleozoic vertebrate material I have ever found in sandstone, which is very odd because the Borden Formation is almost completely composed of limestone and shale. Anyways, here is the final result. It was a very quick prep due to how soft the matrix was. Sandalodus sp. Shark tooth Borden Formation, SE Kentucky Early Mississippian BEFORE PREP AFTER PREP