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UP5-09
This fossilized mako shark tooth has a broad, blade-like crown, and many still keep a surprisingly sharp edge. Teeth measure about 1.25 to 1.5 inches long and 0.7 to 1.2 inches wide.
Add it to a fossil collection, give it to a young shark fan or ocean lover, or wrap it with wire as a pendant. It makes a memorable gift for birthdays and science lovers. Edges can be sharp, so supervise children when handling.
Most fossil teeth sold as mako come from an extinct broad-toothed shark labeled Isurus, Cosmopolitodus or Carcharodon hastalis, which lived from the Eocene through the Pleistocene. Teeth are often the only part of a shark that fossilizes, and minerals from the surrounding sediment give them their dark or tan color.