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gptkbp:instanceOf
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epicontinental sea
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gptkbp:alsoKnownAs
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gptkb:Western_Interior_Seaway
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gptkbp:causeOfDisappearance
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gptkb:Laramide_orogeny
regression of sea levels
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gptkbp:connects
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gptkb:Arctic_Ocean
gptkb:Gulf_of_Mexico
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gptkbp:disappeared
|
end of Cretaceous period
|
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gptkbp:dividedInto
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gptkb:Appalachia
gptkb:Laramidia
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gptkbp:existedDuring
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gptkb:Cretaceous_period
|
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gptkbp:existedUntil
|
gptkb:Late_Cretaceous
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gptkbp:formedBy
|
gptkb:Early_Cretaceous
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gptkbp:fossil
|
gptkb:ammonites
gptkb:mosasaurs
marine turtles
sharks
sea urchins
plesiosaurs
pterosaurs
crinoids
bony fish
dinosaurs (on landmasses)
inoceramid clams
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Cretaceous Seaway
|
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gptkbp:importantFor
|
marine fossil preservation
paleogeography of North America
|
|
gptkbp:includedPresentDay
|
gptkb:Alberta
gptkb:Colorado
gptkb:Kansas
gptkb:Manitoba
gptkb:Montana
gptkb:Nebraska
gptkb:New_Mexico
gptkb:North_Dakota
gptkb:Oklahoma
gptkb:Saskatchewan
gptkb:South_Dakota
gptkb:Texas
gptkb:Wyoming
parts of Canada
|
|
gptkbp:locatedIn
|
gptkb:North_America
|
|
gptkbp:maximumDepth
|
up to 760 meters
|
|
gptkbp:sedimentsNowForm
|
gptkb:Mancos_Shale
gptkb:Niobrara_Formation
gptkb:Pierre_Shale
gptkb:Greenhorn_Limestone
gptkb:Benton_Shale
gptkb:Carlile_Shale
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gptkbp:separates
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eastern and western North America
|
|
gptkbp:width
|
up to 1,000 km
|
|
gptkbp:bfsParent
|
gptkb:Western_Interior_Seaway
|
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gptkbp:bfsLayer
|
7
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