Geocollections

Stratigraphy

Llandovery

Belongs to	Silurian
Type	chronostratigraphy
Rank	Series
Original rank	ladestik
Scope	global
Status	formal standard
Etymon	Dyfed, southern Wales
Age top (Ma)	433.4
Age base (Ma)	443.8
Age (Ma)	Silurian
Index	S₁
Alt. index	S₁
Date changed	2022-12-28

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