Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:alsoKnownAs |
gptkb:Pennsylvanian
|
| gptkbp:beganIn |
approximately 323 million years ago
|
| gptkbp:characterizedBy |
coal-forming swamps
high oxygen levels appearance of first reptiles diversification of amphibians large arthropods |
| gptkbp:correspondsTo |
gptkb:Pennsylvanian_in_North_America
|
| gptkbp:dividedInto |
gptkb:Bashkirian
gptkb:Gzhelian gptkb:Kasimovian gptkb:Moscovian |
| gptkbp:endDate |
approximately 299 million years ago
|
| gptkbp:followedBy |
gptkb:Permian
|
| https://www.w3.org/2000/01/rdf-schema#label |
late Carboniferous
|
| gptkbp:partOf |
gptkb:Carboniferous_period
|
| gptkbp:precededBy |
Mississippian
|
| gptkbp:usedIn |
North American stratigraphy
|
| gptkbp:bfsParent |
gptkb:Pinophyta
|
| gptkbp:bfsLayer |
6
|