Klonk Section

E538411

The Klonk Section is a globally significant stratigraphic site in the Czech Republic that serves as the formal reference point for the base of the Devonian System.

All labels observed (1)

Label Occurrences
Klonk Section canonical 2

How this entity was disambiguated

Statements (43)

Predicate Object
instanceOf Global Boundary Stratotype Section and Point
geological heritage site
stratigraphic section
access exposed in a small quarry face
approximateAgeMa 419.2 million years ago
contains continuous Silurian–Devonian sedimentary record
country Czech Republic
defines Silurian–Devonian boundary
base of the Devonian System
geologicSetting marine sedimentary succession
geologicTimeBoundary Pridoli–Lochkovian boundary
linked to: Pridoli Epoch
governingBody Czech nature conservation authorities
GSSPStatus first formally ratified GSSP
hasProtectionStatus national nature monument
heritageSignificance global stratigraphic standard
lithology limestone
shale
locatedIn Beroun District
Central Bohemian Region
near the village of Suchomasty
marksBaseOf Lochkovian Stage
linked to: Lochkovian Epoch

Lower Devonian Series
linked to: Early Devonian
nearbyCity Beroun
nextSystem Devonian System
linked to: Devonian Period
notableFor clear definition of the Devonian base
excellent fossil preservation
previousSystem Silurian System
linked to: Silurian
primaryMarkerFossil Monograptus uniformis
Monograptus uniformis uniformis
ratificationYear 1972
ratifiedBy International Commission on Stratigraphy
International Union of Geological Sciences
recognizedBy International Commission on Stratigraphy
regionGeology Barrandian area
scientificDiscipline geochronology
paleontology
stratigraphy
stratigraphicRole global stratotype for the base of the Devonian
timeScaleUnit Devonian Period
Paleozoic Era
Silurian Period
linked to: Silurian
usedFor calibration of the geologic time scale
global correlation of Silurian–Devonian boundary strata

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Lochkovian lowerBoundaryDefinedAt Klonk Section