Ammonoid Zonation in QZ467

This zonation is defined by FAD of Clionitites sp.

Daxatina canadensis Zone
Characteristic spesies:
?Daxatina sp.
Clionitites sp.
Zestoceras sp.
Frankites apertus

Frankites regoledanus Zone
Characteristic spesies:
Joannites sp.
Megaphyllites jarbas
Frankites regoledanus
Protrachyceras custulatum
Anolcites sp.
Asklepioceras sp.
Arcestes sp.