Cretaceous System of North America
GPTKB entity
Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:age |
145 to 66 million years ago
|
| gptkbp:contains |
fossil beds
sedimentary rocks |
| gptkbp:depositionalEnvironment |
gptkb:marine
terrestrial |
| https://www.w3.org/2000/01/rdf-schema#label |
Cretaceous System of North America
|
| gptkbp:location |
gptkb:North_America
|
| gptkbp:notableBasin |
gptkb:Western_Interior_Seaway
|
| gptkbp:notableFor |
gptkb:Dakota_Sandstone
gptkb:Niobrara_Formation gptkb:Pierre_Shale |
| gptkbp:notableSite |
gptkb:ammonites
dinosaur fossils marine reptiles |
| gptkbp:overlies |
Jurassic System of North America
|
| gptkbp:partOf |
gptkb:Cretaceous_Period
|
| gptkbp:underlies |
gptkb:Paleogene_System_of_North_America
|
| gptkbp:bfsParent |
gptkb:Apodaca_Group
|
| gptkbp:bfsLayer |
7
|