03044 - Superb Pyritized 0.70'' Mimagoniatites Devonian Cephalopod Mawsonia This ceratopsid dinosaur

This ceratopsid dinosaur

The teeth with strong and vivid fossilization colors such as red

Triceratops horridus

In the Cretaceous part we can add Mosasaurs

Under binocular loupes you can even see the small details

03044 - Superb Pyritized 0.70'' Mimagoniatites Devonian Cephalopod Mawsonia This ceratopsid dinosaurImpressive 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.