Eifelian
E538407
Eifelian is a stage of the Middle Devonian period characterized by significant marine biodiversity and the evolution of early reef ecosystems.
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | geologic age ⓘ |
| associatedWith |
diversification of marine ecosystems
ⓘ
evolution of early reef-building organisms ⓘ radiation of jawed fishes ⓘ |
| biostratigraphicMarkers |
brachiopod assemblages
ⓘ
conodont zonation ⓘ goniatite ammonoids ⓘ |
| characterizedBy |
abundant marine invertebrates
ⓘ
carbonate platform development ⓘ development of early reef ecosystems ⓘ diverse brachiopod faunas ⓘ diverse coral faunas ⓘ diverse trilobite faunas ⓘ expansion of stromatoporoid reefs ⓘ high marine biodiversity ⓘ |
| chronologicalPosition | early stage of the Middle Devonian ⓘ |
| correlatesWith |
regional Middle Devonian stages in Europe
ⓘ
regional Middle Devonian stages in North America ⓘ |
| endTime | approximately 387.7 million years ago ⓘ |
| era | Paleozoic NERFINISHED ⓘ |
| follows | Emsian NERFINISHED ⓘ |
| fossilRecordImportance |
important for brachiopod and coral zonations
ⓘ
important for conodont biostratigraphy ⓘ key interval for studying reef evolution ⓘ |
| governingBodyForDefinition | International Commission on Stratigraphy NERFINISHED ⓘ |
| lithostratigraphicExpression |
reef and peri-reef limestones
ⓘ
widespread carbonate shelf deposits ⓘ |
| locatedInTheAdministrativeTerritorialEntity | Germany NERFINISHED ⓘ |
| namedAfter | Eifel region NERFINISHED ⓘ |
| paleoclimate | generally warm climate ⓘ |
| paleogeography |
extensive epicontinental seas
ⓘ
widespread shallow marine environments ⓘ |
| partOf |
Devonian period
NERFINISHED
ⓘ
Middle Devonian NERFINISHED ⓘ |
| positionInDevonian | second stage of the Devonian after the Lochkovian and Emsian ⓘ |
| precedes | Givetian ⓘ |
| rank | stage ⓘ |
| standardGlobalStratotypeSectionAndPoint | defined near Wetteldorf in the Eifel region ⓘ |
| startTime | approximately 393.3 million years ago ⓘ |
| subdivisionOf | Devonian Series 2 (Middle Devonian) NERFINISHED ⓘ |
| system | Devonian ⓘ |
| timeScale | International Commission on Stratigraphy timescale NERFINISHED ⓘ |
| usedFor |
dating of marine sedimentary sequences
ⓘ
global correlation of Middle Devonian strata ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.