The Global Stratotype Section and Point (GSSP) is a reference point used to define geological time boundaries. It does not have a traditional ‘world ranking’ as it is not an entity or institution but a scientific designation. GSSPs are ratified by the International Commission on Stratigraphy (ICS) and represent specific rock sections marking time divisions in Earth’s history. Over 70 GSSPs have been established worldwide, each critical for correlating geological timelines. Their importance lies in standardization, not competition, making rankings irrelevant. Researchers prioritize accuracy and global consensus when designating GSSPs.
