05589 - Great Collection of 2 Pterosaur (Coloborhynchus) Teeth Cretaceous KemKem Beds Spinosaurus Claws It's really hard to find

It's really hard to find pieces like these

Micraster cortestudinarium

Gastropolus

Lindgren & Schulp (2010) New material of Prognathodon (Squamata: Mosasauridae)

ideas for space re-entry vehicles were designed from this natural shape which tends to dissipate the high amounts of energy better

05589 - Great Collection of 2 Pterosaur (Coloborhynchus) Teeth Cretaceous KemKem Beds Spinosaurus Claws It's really hard to findPrecious collection of two nice teeth of this species of pterosaur. The pterosaurs dentition rests in the Upper Cretaceous in North Africa are relatively common among the fauna which got preserved from those ecosystems around 100 million years ago. However, only two different pterosaur taxons have been described. Mader & Kellner (1999) (Full reference: B. J. Mader and A. W. A. Kellner. 1999. A new anhanguerid pterosaur from the Cretaceous of Morocco.