04181 - Superb Pyritized 0.93 Inch Goniatites Devonian Cephalopod Crocodile Skulls 59 Inch = 15

59 Inch = 15

and apart from being widely used in jewelry

They preserve the structures with amazing detail

Fantastic and very rare teeth of this North African sauropod species

04181 - Superb Pyritized 0.93 Inch Goniatites Devonian Cephalopod Crocodile Skulls 59 Inch = 15Impressive 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.