Alligators and CrocodilesSkullParietal BoneCraniotomyDura MaterBone and BonesReptilesSkull BaseMauritaniaSuperstitionsChadSkull NeoplasmsSkull Base NeoplasmsBone RemodelingDinosaursAnimals, ZooSkull FracturesTurtlesBone DensitySkeletonHornsFossilsBoidaeAnatomy, ComparativeBone ResorptionBone MarrowAfrica, Northern