Sharks body is covered
with placoid scales, also called like small teeth. They have the same
structure of those of greater dimensions, that are found in the jaws.
The placoid scales, besides constituting an effectiveness protection of
the shark body, reduces also the resistance to the sea water, improving
animal capacity to swin.
The teeth that are found in the superior and inferior jaws are modified
placoid scales and they are very great.
Their form and disposition point out of what preys the sharks are usual
to feed in fact long and sharp teeth as those of the bull shark (Carcharias
taurus) are proper to pierce and to hold back small fishes and
cefalopods, while those more breadths and pieces as those of the shark
tiger (Galeocerdo cuvier) develop a greater resistance and they serve
for shattering hulls and to shear pieces of food.
The teeth of the sharks are anchored in the "derma" through fibers of
connective fabric, the external covering is constituted by enamel that
protects a layer of "dentina" to whose inside is found the pulp.
Press on the images to see them magnified.
In this page are visible the
photos of the teeth of:
Zambesi shark (Carcharhinus leucas)
Bluntnose sixgill shark (Hexanchus
Smalltooth sandtiger shark (Odontaspis
Megalodon shark (Carcharodon
Blue shark (Prionace glauca)
Tiger shark (Galeocerdo cuvier)
Grey nurse shark (Carcharias taurus)
White shark (Carcharodon carcharias)
Mako shark (Isurus oxyrinchus)
Otodus shark (Otodus obliquus)
To see more sharks teeth visit JAWS
More about shark teeth in SHARKMAP.
Grey nurse shark
Bluntnose sixgill shark