Kimmeridgian stage

E917045

geologic time division stage

The Kimmeridgian stage is a division of the Late Jurassic period characterized by widespread marine sedimentation and important fossil-bearing strata used for global geological correlation.

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Observed surface forms (1)

Surface form	Occurrences
Kimmeridgian	8

Statements (44)

Predicate	Object
instanceOf	geologic time division ⓘ stage ⓘ
characterizedBy	black shales in some marine basins ⓘ extensive carbonate sedimentation in many basins ⓘ important fossil-bearing strata ⓘ widespread marine sedimentation ⓘ
chronologicalPosition	late phase of the Jurassic period ⓘ
contains	important ammonite biozones ⓘ important invertebrate fossils ⓘ important marine reptile fossils ⓘ
correlatesWith	Upper Jurassic marine strata worldwide ⓘ
definedBy	International Commission on Stratigraphy NERFINISHED ⓘ
economicImportance	source rocks for hydrocarbons in some basins ⓘ
endTime	approximately 152.1 million years ago ⓘ
environment	predominantly marine ⓘ
follows	Oxfordian stage NERFINISHED ⓘ
fossilContent	abundant ammonites ⓘ bivalves ⓘ marine reptiles ⓘ microfossils such as foraminifera ⓘ
geochronologicEquivalent	Kimmeridgian age ⓘ
lithostratigraphicUnitExample	Kimmeridge Clay Formation NERFINISHED ⓘ
namedAfter	Kimmeridge NERFINISHED ⓘ village of Kimmeridge in Dorset, England ⓘ
overlies	Oxfordian stage strata ⓘ
paleogeography	associated with high sea levels in many regions ⓘ
partOf	Jurassic period NERFINISHED ⓘ Late Jurassic NERFINISHED ⓘ Upper Jurassic series ⓘ
positionInJurassic	second stage of the Late Jurassic ⓘ
precedes	Tithonian stage NERFINISHED ⓘ
rank	stage ⓘ
recognizedBy	International Chronostratigraphic Chart NERFINISHED ⓘ
startTime	approximately 157.3 million years ago ⓘ
stratotypeLocatedIn	Dorset, England NERFINISHED ⓘ Kimmeridge Bay NERFINISHED ⓘ
subdividedInto	Lower Kimmeridgian ⓘ Upper Kimmeridgian ⓘ
timeSpan	about 5.2 million years ⓘ
underlies	Tithonian stage strata ⓘ
usedFor	global geological correlation ⓘ
usedIn	biostratigraphy ⓘ chronostratigraphy ⓘ sequence stratigraphy ⓘ