Now if we wish to find all 12 periods, i.e., the complete column, it is hardly found anywhere on earth! Only a few places, as emphasized by the red dashed ellipses.
J. Woodmorappe, The Essential Nonexistence of the Evolutionary-Uniformitarian Geologic Column: A Quantitative Assessment, Creation Research Quarterly, Volume 18, Number 1, June 1981, pg.62