Cambrian Period, Boundaries and subdivisions
The lower boundary of the Cambrian System is defined at a formal global stratotype section and point (GSSP), which was ratified by the International Union of Geological Sciences (IUGS) in 1992. The stratotype section is located at Fortune Head on the Burin Peninsula of southeastern Newfoundland in Canada. It contains a thick and continuous marine succession of mostly
posted by EqualPocket @ 4:51 PM
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