This catalog contains exceptional lower jaw teeth from the king of the Makos - Isurus hastalis, the Big-tooth Mako shark. These teeth are noted for their slender crowns and long roots. Complete, large I. hastalis lowers are very difficult to find due to their narrow crowns and very fragile roots. The Sharktooth Hill site produces extraordinary I. hastalis teeth. We are offering some the largest and highest quality teeth available. Excellent teeth from the Sharktooth Hill (north) side of the river . These are the highest quality teeth from my old inventory!