Dakota Formation
E274880
The Dakota Formation is a widespread Cretaceous sedimentary rock unit in North America, noted for its sandstone deposits that record the advance of the Western Interior Seaway and preserve abundant plant and dinosaur fossils.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dakota Formation canonical | 2 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock unit ⓘ |
| age |
Early Late Cretaceous
ⓘ
Late Early Cretaceous ⓘ |
| color | typically yellowish to brown ⓘ |
| contains | coal beds in some areas ⓘ |
| containsFossilsOf |
dinosaurs
ⓘ
fish ⓘ invertebrates ⓘ plants ⓘ |
| containsResource |
groundwater
ⓘ
petroleum reservoirs ⓘ uranium deposits ⓘ |
| continent | North America ⓘ |
| country |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
|
| depositionalEnvironment |
deltaic
ⓘ
fluvial ⓘ nearshore marine ⓘ |
| fossilType |
dinosaur tracks
ⓘ
leaf impressions ⓘ pollen and spores ⓘ |
| geologicPeriod | Cretaceous ⓘ |
| geologicProvince | Western Interior Basin ⓘ |
| hasMember |
Juniata Member
ⓘ
Mesa Verde equivalent units ⓘ Tererro Member ⓘ |
| lithology |
mudstone
ⓘ
sandstone ⓘ siltstone ⓘ |
| namedAfter | Dakota Territory ⓘ |
| notedFor |
abundant plant impressions
ⓘ
high-quality sandstone aquifers ⓘ important dinosaur tracksites ⓘ |
| overlies |
Kiowa Formation
ⓘ
Morrison Formation ⓘ |
| records | advance of the Western Interior Seaway ⓘ |
| region |
Colorado Plateau
ⓘ
Great Plains ⓘ Rocky Mountain region ⓘ |
| researchField |
paleontology
ⓘ
sedimentology ⓘ stratigraphy ⓘ |
| stratigraphicUnitOf | Western Interior Seaway margin ⓘ |
| thickness | varies from a few meters to over 200 meters ⓘ |
| underlies |
Benton Group
ⓘ
Graneros Shale ⓘ |
| usedAs | building stone in some regions ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.