Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:age |
approximately 252 million years ago
|
| gptkbp:alsoKnownAs |
gptkb:P-T_boundary
P/Tr boundary |
| gptkbp:associatedWith |
gptkb:Permian-Triassic_extinction_event
|
| gptkbp:category |
gptkb:geochronology
stratigraphy |
| gptkbp:definedIn |
first appearance of conodont Hindeodus parvus
|
| gptkbp:followedBy |
Induan age
|
| gptkbp:GSSP_location |
Meishan, Zhejiang Province, China
|
| https://www.w3.org/2000/01/rdf-schema#label |
Permian-Triassic boundary
|
| gptkbp:marking |
end of the Permian period
beginning of the Triassic period |
| gptkbp:precededBy |
gptkb:Lopingian_epoch
|
| gptkbp:recognizedBy |
global stratotype section and point (GSSP)
|
| gptkbp:significance |
largest mass extinction in Earth's history
|
| gptkbp:bfsParent |
gptkb:Karoo_Supergroup
gptkb:Dr._B._S._Rubidge gptkb:Permian-Triassic_extinction |
| gptkbp:bfsLayer |
7
|