Ashgillian
preferred label: آشگیلین @fa
type: Concept
narrower: Hirnantian

Bighorn Dolomite
preferred label: دولومیت بیگورن @fa
type: Concept
narrower: Hirnantian

Hirnantian
broader: Ashgillian
broader: Bighorn Dolomite
preferred label: هیرنانسین @fa
type: Concept