Aquitanian Stage of the Oligocene-Miocene transition
E905198
The Aquitanian Stage of the Oligocene-Miocene transition is a geologic time interval marking the earliest part of the Miocene Epoch, characterized by significant climatic shifts and faunal turnovers following the late Oligocene.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Aquitanian Stage of the Oligocene-Miociene transition | 0 |
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Miocene age
ⓘ
chronostratigraphic unit ⓘ geologic time interval ⓘ |
| associatedWith |
changes in global carbon cycle
ⓘ
evolution of modern-type marine plankton communities ⓘ reorganization of ocean circulation patterns ⓘ |
| boundaryType | chronostratigraphic boundary ⓘ |
| characterizedBy |
changes in marine invertebrate assemblages
ⓘ
changes in terrestrial mammal faunas ⓘ climatic shifts following the late Oligocene ⓘ early Miocene marine transgressions in some basins ⓘ faunal turnovers following the late Oligocene ⓘ |
| climateContext | transition from late Oligocene conditions to early Miocene conditions ⓘ |
| contains | earliest Miocene sediments in many marine basins ⓘ |
| correlatesWith |
earliest Miocene global climatic reorganization
ⓘ
early Neogene biotic turnover ⓘ |
| definedBy | International Commission on Stratigraphy NERFINISHED ⓘ |
| endTime_ma | 20.44 ⓘ |
| faunalContext |
turnover in marine foraminifera
ⓘ
turnover in marine mollusks ⓘ turnover in terrestrial mammals ⓘ |
| follows | Chattian Stage NERFINISHED ⓘ |
| geochronologicScale | international geologic time scale NERFINISHED ⓘ |
| linkedTo |
marine microfossil zonations
ⓘ
terrestrial mammal biozones ⓘ |
| lowerBoundary | Oligocene–Miocene boundary ⓘ |
| overlies | upper Oligocene strata ⓘ |
| paleogeographicSignificance | associated with changes in regional sea levels ⓘ |
| paleontologicalSignificance | used to date early Miocene fossil assemblages ⓘ |
| partOf |
Cenozoic Era
NERFINISHED
ⓘ
Miocene Epoch NERFINISHED ⓘ Neogene Period NERFINISHED ⓘ |
| positionInTimeScale | earliest part of the Miocene Epoch ⓘ |
| precedes | Burdigalian Stage NERFINISHED ⓘ |
| rank | stage ⓘ |
| startsIn | Neogene Period NERFINISHED ⓘ |
| startTime_ma | 23.03 ⓘ |
| stratigraphicSignificance | defines base of the Miocene in many stratigraphic sections ⓘ |
| temporalRelation |
immediately follows the late Oligocene
ⓘ
marks onset of the Miocene Epoch ⓘ |
| timeEquivalentOf | Aquitanian Age NERFINISHED ⓘ |
| underlies | Burdigalian Stage strata ⓘ |
| usedIn |
global stratigraphic correlation
ⓘ
paleobiogeographic studies ⓘ paleoclimatic reconstructions ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.