05029 - Beautiful Pyritized 1.69 Inch Unidentified Lower Cretaceous Ammonites Ceratodus humei It has some fractures that

It has some fractures that have been glued and restored

Top quality specimen

The remains of this species of coelacanth in the North Africa Cretaceous are very rare

K/T Boundary Glass Rich Burn Layer Hell Creek Fm Latest Cretaceous Carter Country Montana

Awesome pyritized specimen

05029 - Beautiful Pyritized 1.69 Inch Unidentified Lower Cretaceous Ammonites Ceratodus humei It has some fractures thatSpecimen of extreme quality. Unidentified species. His suture lines are wonderfully well detailed. 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.