GeochronologicEra (type)
The association of an era with a stratotype is optional. In the GSSP approach recommended by ICS for the Global Geologic Timescale, Unit Stratotypes are not used.
Rather, the association of an Era with geologic units and sections is indirect, via ...
Spesifikasjon:
INSPIRE-kopi-revision4711\Foundation Schemas\GeoSciML\GeologicTimescale\TimeScale