KnowraGlobal Boundary Stratotype Section and PointLinked fromLinked fromThe 7 pages that link to Global Boundary Stratotype Section and Point, each with the reason it gives.All 7Broader topic 2Related 4Narrower topic 1Geologic time scaleRelated: Many formal boundaries are anchored to a specific rock section and marker.PermianNarrower topic: The Permian’s base and top are defined through internationally ratified boundary sections.CenozoicRelated: Boundary markers make Cenozoic divisions precise and globally correlatable.International Commission on StratigraphyBroader topic: The commission uses these reference points to define many internationally standardized boundaries.ChronostratigraphyBroader topic: A GSSP anchors many chronostratigraphic boundaries to a specific rock section.Geologic timeRelated: These boundary markers anchor named divisions to specific, examinable strata.NeoproterozoicRelated: The Ediacaran base is fixed at a stratotype in South Australia.