07522 - Stunning Pyritized 0.96 Inch Olcostephanus sp Lower Cretaceous Ammonites Mosasaur abundant in the Devonian of
Yard notes & kiln story
Description
abundant in the Devonian of North Africa
J Kloc 1997
Oriented meteorites are quite rare and can differ widely in shape and size
8 mm // 1
It is a magnificent example of the Moroccan Acanthopyge and Phacops
07522 - Stunning Pyritized 0.96 Inch Olcostephanus sp Lower Cretaceous Ammonites Mosasaur abundant in the Devonian ofOlcostephanus 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.