Sheinwoodian
E790784
The Sheinwoodian is an early subdivision of the Silurian Period’s Wenlock epoch, used in geology and paleontology to date and correlate rock layers and fossils.
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf | geologic age ⓘ |
| approximateEnd | 430.5 million years ago ⓘ |
| approximateStart | 433.4 million years ago ⓘ |
| associatedWith |
brachiopod faunas
ⓘ
graptolite biozones ⓘ reefal carbonate development in some regions ⓘ |
| chronologicalPosition |
early Wenlock
ⓘ
post-Llandovery ⓘ pre-Ludlow ⓘ |
| correlates |
regional Silurian stages in Asia
ⓘ
regional Silurian stages in Europe ⓘ regional Silurian stages in North America ⓘ |
| definedBy | Global Boundary Stratotype Section and Point (GSSP) NERFINISHED ⓘ |
| discipline |
historical geology
ⓘ
stratigraphy ⓘ |
| endBoundaryDefinedBy | first appearance datum of the graptolite Cyrtograptus lundgreni ⓘ |
| follows | Telychian ⓘ |
| globalScope | used as a global standard stage ⓘ |
| lithostratigraphicUse | correlation of marine sedimentary sequences ⓘ |
| lowerBoundaryTypeSection | Ludlow, Shropshire, England NERFINISHED ⓘ |
| namedAfter | Sheinwood, near Ludlow, England NERFINISHED ⓘ |
| partOf |
Paleozoic Era
NERFINISHED
ⓘ
Silurian Period NERFINISHED ⓘ Wenlock Epoch NERFINISHED ⓘ |
| precedes | Homerian ⓘ |
| rank |
age
ⓘ
stage ⓘ |
| startBoundaryDefinedBy | first appearance datum of the graptolite Cyrtograptus centrifugus ⓘ |
| subdivisionOf | Silurian System NERFINISHED ⓘ |
| timeScaleFramework | International Commission on Stratigraphy time scale ⓘ |
| usedFor |
correlating fossil assemblages
ⓘ
correlating rock strata ⓘ dating fossils ⓘ dating rock layers ⓘ |
| usedIn |
geology
ⓘ
paleontology ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.