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.CenozoicRelated: Boundary markers make Cenozoic divisions precise and globally correlatable.Geologic timeRelated: These boundary markers anchor named divisions to specific, examinable strata.NeoproterozoicRelated: The Ediacaran base is fixed at a stratotype in South Australia.