07522 - Stunning Pyritized 0.96 Inch Olcostephanus sp Lower Cretaceous Ammonites Mosasaur 27 in) It has a

27 in) It has a series of fractures which have been restored via the filling method

from the study of coprolites

Homalonotidae is a family of trilobites that lived from the Ordovician to the Devonian

Although in their alveoli

07522 - Stunning Pyritized 0.96 Inch Olcostephanus sp Lower Cretaceous Ammonites Mosasaur 27 in) It has aOlcostephanus sp, Neumayr (1875) Ammonite Cephalopoda Ammonoidea Olcostephanidae 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.