03039 - Superb Pyritized 2.16'' Phylloceras Lower Cretaceous Ammonites Fish The basin has a so

The basin has a so great continuity in its stratigraphic record that both the Upper Cretaceous as well as the two first epochs of the Paleogene (Paleocene and Eocene) can be studied

It comes from the famous sites of the Hell Creek Formation in Montana (Maastrichtian stage

west of Hamada du Guir

All the crocodylomorpha lived in this delta next to fish

We believe that it can be a specimen belonging to the Abelisauridae family

03039 - Superb Pyritized 2.16'' Phylloceras Lower Cretaceous Ammonites Fish The basin has a soIt 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.