Type
Zone
Age range
6.13–5.72 Ma
Miocene
Messinian
G. tumida/G. nepenthes CRZ - Atlantic
G. extremus PRZ - Atlantic
N. acostaensis/G. lenguaensis CRZ
G. tumida/G. nepenthes CRZ - Atlantic
G. extremus PRZ - Atlantic
G. plesiotumida/G. lenguaensis CRSZ
6.146.126.106.086.066.046.026.005.985.965.945.925.905.885.865.845.825.805.785.765.745.72