Epoch

Late Ordovician

458.2000 – 443.1000 Ma

The Late Ordovician is the third and final epoch of the Ordovician period, lasting 15.1 million years and spanning from around 458.2 to 443.1 million years ago. The rocks associated with this epoch are referred to as the Upper Ordovician Series.

← Geological time scale
Late Ordovician
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© Scotese, Christopher R.; Vérard, Christian; Burgener, Landon; Elling, Reece P.; Kocsis, Ádám T. · CC BY 4.0
Parent interval
Ordovician Period
Sub-intervals 3
Sandbian
458.2000 – 452.8000
Katian
452.8000 – 445.2000
Hirnantian
445.2000 – 443.1000