Fig. 5. The D-C boundary correlated between low paleolatitude terrestrial (Stensiö Bjerg, Greenland) and marine shelf [Stockum II, Germany; (11)] sections with high paleolatitude (Chaguaya, Bolivia).

The LN* to VI spore boundary is the correlation tie and the interval of terrestrial extinctions. The terrestrial arid interval on Stensiö Bjerg correlates to the interval at Stockum II between the Hangenberg Black Shale and the LN* spore zone and equivalent to the glaciation. The Chaguaya composite section (note the reduced scale) includes a channel-filling sandstone of glacigenic origin that terminates immediately below the D-C boundary.