03044 - Superb Pyritized 0.70'' Mimagoniatites Devonian Cephalopod Mawsonia usually destroy many interesting bone

usually destroy many interesting bone rests

with a premium quality enamel

In the Cretaceous part we can add Mosasaurs

This ceratopsid dinosaur

03044 - Superb Pyritized 0.70'' Mimagoniatites Devonian Cephalopod Mawsonia usually destroy many interesting boneImpressive 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.