04180 - Superb Pyritized 1.00 Inch Goniatites Devonian Cephalopod Cretolamna Rigorous comparative studies with other

Rigorous comparative studies with other published similar rests would be necessary to be able to perform a reliable diagnosis

24 Inch = 6 mm

Magnificent tooth of the Hadrosaurid dinosaur Edmontosaurus

From these we cannot deduct the species because they are almost completely buried in the rock

Many species of insects have been described thanks to their preservation within this precious resin of fossil tree

04180 - Superb Pyritized 1.00 Inch Goniatites Devonian Cephalopod Cretolamna Rigorous comparative studies with otherImpressive 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.