06103 - Beautiful Pyritized 2.48 Inch Unidentified Lower Cretaceous Ammonites Hexanchus the anterior end of which
Yard notes & kiln story
Description
the anterior end of which is located half its length from the frontal suture
Rare species
they were extracted from the same stratigraphic level
8 mm // 1
The age of these correspond to the Maastrichtian stage
06103 - Beautiful Pyritized 2.48 Inch Unidentified Lower Cretaceous Ammonites Hexanchus the anterior end of whichSpecimen 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.