lowerBoundaryDefinition

7 triples
GPTKB property

Random triples
Subject Object
gptkb:Cambrian_Stage_2 not formally defined
gptkb:Greenlandian NGRIP1 ice core
gptkb:Maastrichtian_stage first appearance of ammonite Pachydiscus neubergicus
gptkb:Gelasian_Age base of the Matuyama chronozone
gptkb:Zanclean_Stage base of the Thvera magnetic event (C3n.4n)
gptkb:Northgrippian_Age climate event in Greenland ice core
gptkb:Lochkovian_Stage First appearance of graptolite Monograptus uniformis