04179 - Superb Pyritized 1.31 Inch Goniatites Devonian Cephalopod Bone_Claw see also Martill and Unwin

see also Martill and Unwin 2011

08 Inch = 2

Impressive piece worthy of exposure

"Taxonomic Composition and Trophic Structure of the Continental Bony Fish Assemblage from the Early Late Cretaceous of Southeastern Morocco"

Mader and A

04179 - Superb Pyritized 1.31 Inch Goniatites Devonian Cephalopod Bone_Claw see also Martill and UnwinImpressive example of this Devonian cephalopod. 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. The characteristic lines of suture of this cephalopod of the Paleozoic can be perfectly observed. Nice specimen.