This is a real bonnethead shark ( Sphyrna tiburo) skull, a member of the hammerhead family distinguished by its shovel-shaped cephalofoil. The specimen, composed of cartilage rather than bone, is mounted on a display base and presents the characteristic jaw structure with multiple tooth rows intact. Suitable for ichthyology study, marine science collections, or natural history display.nBonnethead sharks are the only sharks known to exhibit sexual dimorphism in the morphology of the head. Adult females have a broadly rounded head, whereas males possess a distinct bulge along the anterior margin of the cephalofoil. This bulge is formed by the elongation of the rostral cartilages of the males at the onset of sexual maturity and corresponds temporally with the elongation of the clasper cartilages.Class: Chondrichthyes Order: Carcharhiniformes Family: Sphyrnidae Genus: Sphyrna Species: S. tiburonSpecifications:nnBase Diameter 12.4 cm (4.9 in)nSkull Length 12.7 cm (5 in)nSkull Width 15.5 cm (6.1 in)nSkull Height 10.8 cm (4.3 in)