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Where is the official Silurian-Devonian boundary stratotype located?
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Silurian Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the middle part of the Silurian Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
The official Silurian-Devonian boundary stratotype is located at a cliff section near Klonk, near Suchomasty, approximately 35 kilometers (22 miles) southwest of Prague in the Czech Republic.12
This site serves as the Global Stratotype Section and Point (GSSP) for the base of the Lochkovian Stage, which marks the beginning of the Devonian Period and the end of the Silurian System. The boundary is defined by the first occurrence of the graptolite Monograptus uniformis and represents the first international application of the "golden spike" concept in stratigraphy.321