RNames - Scheme: Eons (3)

Scheme: Eons (3)

Structed Name Sequence
Archean - Eon / Chronostratigraphy - 1 - Global 0
Proterozoic - Eon / Chronostratigraphy - 1 - Global 1
Phanerozoic - Eon / Chronostratigraphy - 1 - Global 2