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Terms for subject Geochronology (83 entries)

geologic age	A geologic age is the lowest rank unit of time for the geologic time scale	Michae­lBurov
Aalenian Age	Aal	Michae­lBurov
Aalenian time	Aal	Michae­lBurov
giga annum	Ba	Michae­lBurov
gigaannum	Ba	Michae­lBurov
Boring Billion	Barren Billion	Michae­lBurov
Barren Billion	Boring Billion	Michae­lBurov
gigaannum	By	Michae­lBurov
giga annum	By	Michae­lBurov
giga annum	Byr	Michae­lBurov
gigaannum	Byr	Michae­lBurov
Bya	Bys ago	Michae­lBurov
Gya	Bys ago	Michae­lBurov
Early Llanvirnian	Early Llanvirn	Michae­lBurov
Early Llanvirnian	Early Llanvirn Age	Michae­lBurov
Early Llanvirn	Early Llanvirn Age	Michae­lBurov
Early Llanvirn	Early Llanvirnian	Michae­lBurov
Early Llanvirnian	Early Llanvirnian Age	Michae­lBurov
Early Llanvirn	Early Llanvirnian Age	Michae­lBurov
Burzyan	Early Riphean	Michae­lBurov