Middle Ordovician

E398622 UNEXPLORED

The Middle Ordovician is a subdivision of the Ordovician Period characterized by significant diversification of marine life and widespread shallow epicontinental seas.

Jump to: Surface forms Referenced by

Observed surface forms (1)

Surface form	Occurrences
Early Ordovician	1

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Ordovician Period → subdividedInto → Middle Ordovician ⓘ

Great Ordovician Biodiversification Event → temporalLocation → Middle Ordovician ⓘ

this entity surface form: Early Ordovician