Kellwasser events

E390129

geological event mass extinction event paleontological event

The Kellwasser events were two closely spaced Late Devonian mass extinction episodes that severely affected marine life, especially reef-building organisms and armored fishes, and contributed to a major restructuring of Paleozoic ecosystems.

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All labels observed (2)

Label	Occurrences
Kellwasser event	2
Kellwasser events canonical	1

Statements (45)

Predicate	Object
instanceOf	geological event ⓘ mass extinction event ⓘ paleontological event ⓘ
affected	marine life ⓘ
associatedWith	Frasnian–Famennian boundary ⓘ
caused	restructuring of Paleozoic ecosystems ⓘ
characterizedBy	decline of reef ecosystems ⓘ loss of biodiversity in shallow marine environments ⓘ widespread anoxia in marine basins ⓘ
environmentAffected	epicontinental seas ⓘ shallow marine environments ⓘ
followedBy	Famennian stage ⓘ
hasPart	Kellwasser horizons ⓘ surface form: Lower Kellwasser event Upper Kellwasser event ⓘ
hasUncertainCause	climate change ⓘ large igneous province volcanism ⓘ oceanic anoxia ⓘ sea-level fluctuations ⓘ
impact	extinction of many reef-building taxa ⓘ long-term decline of Devonian reef systems ⓘ turnover in fish faunas ⓘ
locatedInReferenceSection	Harz ⓘ surface form: Harz Mountains
namedAfter	Kellwasser Valley ⓘ Kellwassertal ⓘ
occurredDuring	Givetian–Frasnian boundary ⓘ surface form: Frasnian stage
occurredIn	Late Devonian ⓘ
occurredNear	Late Devonian extinction ⓘ surface form: Frasnian–Famennian mass extinction
partOf	Late Devonian extinction ⓘ Paleozoic mass extinctions ⓘ
precededBy	Givetian stage ⓘ
recordedIn	Kellwasser horizons ⓘ black shale layers ⓘ
relatedTo	Hangenberg event ⓘ
scale	global ⓘ
stronglyAffected	armored fishes ⓘ placoderms ⓘ reef-building organisms ⓘ rugose corals ⓘ stromatoporoids ⓘ tabulate corals ⓘ
studiedInDiscipline	paleoecology ⓘ paleontology ⓘ stratigraphy ⓘ
temporalPosition	approximately 372 million years ago ⓘ
temporalRelation	closely spaced extinction episodes ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Devonian Period → massExtinction → Kellwasser events ⓘ

Late Devonian extinction → includesEvent → Kellwasser events ⓘ

this entity surface form: Kellwasser event

Late Devonian → hasMajorEvent → Kellwasser events ⓘ

this entity surface form: Kellwasser event