Isurus Hastalis Big-Tooth Mako Shark Tooth Fossil - Collectors Grade 68mmWith excellent preservation, this Isurus Hastalis shark tooth is of the highest quality and grade A+ for the esteemed collector detailing authentic enamel from the distal to mesial side edges which are consistent from the root to the apical tip. STAT Genus: Isurus Hastalis [Big Tooth Mako Shark] Age: Pliocene 4. 5 million years Origin: Lower Yorktown formation, Hertford Co, North Carolina L: 6. 8 CM