06105 - Well Preserved Pyritized 1.31 Inch Unidentified Lower Cretaceous Ammonites Cretolamna in matrix Cerrejonisuchus

Cerrejonisuchus

The exact taxonomic classification is complex given that there are very few published studies that refer to the claw rests of the Pterosaurs in the North African Upper Cretaceous

Asteropyginae

Halisaurus and prognatodon

06105 - Well Preserved Pyritized 1.31 Inch Unidentified Lower Cretaceous Ammonites Cretolamna in matrix CerrejonisuchusSpecimen of extreme quality. Unidentified species. His suture lines are wonderfully well detailed. It is naturally pyritized. It has undergone a taphonomic process of permineralization in Iron Sulfide (Pyrite). Permineralization is a process of fossilization in which mineral deposits form internal casts of organisms.