Hirnantian

URI: https://gptkb.org/entity/Hirnantian
GPTKB entity
Statements (14)
Predicate Object
gptkbp:instanceOf gptkb:geological_formation
gptkbp:endDate 443.8 million years ago
gptkbp:followedBy gptkb:Katian
gptkbp:hasEvent gptkb:Late_Ordovician_mass_extinction
gptkb:Hirnantian_glaciation
gptkbp:isFinalStageOf gptkb:Ordovician_period
gptkbp:namedAfter gptkb:Hirnant,_Wales
gptkbp:partOf gptkb:Ordovician_period
gptkbp:precededBy Rhuddanian
gptkbp:startDate 445.2 million years ago
gptkbp:stratotypeLocation gptkb:Wales
gptkbp:bfsParent gptkb:Late_Ordovician
gptkbp:bfsLayer 7
https://www.w3.org/2000/01/rdf-schema#label Hirnantian