05614 - Great Collection of 5 Onchopristis numidus Cretaceous Sawfish Rostral Teeth Cretaceous Dinosaur The scanning electron microscopy reveals

The scanning electron microscopy reveals that the chemical composition of the sample is mostly homogenous native iron (Fig

anomalocaridids had been reconstructed with just one row of flaps along each side of the trunk (e

preserved in part of its natural jaw bone

The mineralization is produced in agate

This type of fossil can extract important information about the diet of these huge reptiles and piscivorous dinosaurs of the Cretaceous

05614 - Great Collection of 5 Onchopristis numidus Cretaceous Sawfish Rostral Teeth Cretaceous Dinosaur The scanning electron microscopy revealsGreat collection of 5 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