06472 - Great Collection of 4 Onchopristis numidus Cretaceous Sawfish Rostral Teeth Cretaceous Tetragramma NEW TAXON HALISAURUS MARSH

NEW TAXON HALISAURUS MARSH

It can be seen how part of its thin outer layer (the enamel) has lost by erosion and has exposed the underlying layer of dentine

which occupied a lower position in the gum)

making reference to their age

Faculte des Sciences Ain Chock

06472 - Great Collection of 4 Onchopristis numidus Cretaceous Sawfish Rostral Teeth Cretaceous Tetragramma NEW TAXON HALISAURUS MARSHGreat collection of 4 specimens. Some of them have glued and tiny filled fractures. Onchopristis is a genus of extinct giant sawfish that lived in the Lower Cretaceous to Upper Cretaceous in North Africa and New Zealand. It had an elongated snout lined laterally with barbed teeth. It is a large sawfish, known from remains throughout North America, North Africa and New Zealand. It was very large, up to 8 m (26. 2 ft) long when fully grown. As with