Prognathodon.sp.
Mosasaurs were a group of large predatory marine reptiles. They were th apex predators in the late Cretaceous oceans. There are several different Mosasaurs recorded from the late Cretaceous of the Oulad Abdoun phosphate pits. Prognathodon was amongst the largest and was therefore the apex predator. It used to be called Mosasaurus ( Leiodon) anceps Owen 1851 but is now assigned to a different genus. Pert of the maxilla bone ( upper jaw) of the skull. Shows one huge tooth in position with the socket of another. Lying beneath the tooth in the jaw bone is a germ tooth waiting to erupt when the tooth above it is lost or shed. They would have had to have teeth replacement constantly throughout life.
Late Cretaceous, Maastrichtian.
Oulad Abdoun, Morocco.
Specimen : 11 x 6.5 c 9.5 cm.
