06112 - Beautiful Pyritized 0.90 Inch Phylloceras Lower Cretaceous Ammonites Concavotectum perfectly adapted to the marine
Yard notes & kiln story
Description
perfectly adapted to the marine ecosystems of the Cretaceous
They even have a groove like a claw but the other end does not have a joint where a toe phalanx bone would fit
• Silurian of Canada ( Northwest Territories
It has tiny glued or filled fractures
The vertebral body is preserved
06112 - Beautiful Pyritized 0.90 Inch Phylloceras Lower Cretaceous Ammonites Concavotectum perfectly adapted to the marineSpecimen of extreme quality. 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.