Description: Dusky shark (Carcharhinus obscurus) upper tooth. This species is difficult to discriminate from the bull shark (C. taurus). This particular identification is based on the position of the foramina, the small hole near the center of the root, just at the thickest part of the root; in C. taurus the foramina is just below the thickest part of the root. Also the serrations on the edges of the blade are a bit coarser in C. obscurus than in C. taurus.
Age: Miocene Epoch to Pleistocene
Location Found: United States, North Carolina, Lee Creek