Early Jurassic

E38609

The Early Jurassic was the first epoch of the Jurassic Period, marked by the recovery of life after the end-Triassic extinction and the early diversification of dinosaurs and marine reptiles.

AI illustration

How this image was made

AI-generated illustration of Early Jurassic

This AI-generated illustration was produced by black-forest-labs/FLUX.2-dev (1024x1024) from a prompt written by openai/gpt-oss-120b from the entity's label + description.

Prompt

Generate an image of the Early Jurassic (The Early Jurassic was the first epoch of the Jurassic Period, marked by the recovery of life after the end-Triassic extinction and the early diversification of dinosaurs and marine reptiles.)

All labels observed (6)

How this entity was disambiguated

Statements (50)

Predicate Object
instanceOf geologic epoch ⓘ
subdivision of the Jurassic Period ⓘ
associatedWith initial breakup of Pangaea ⓘ
intense volcanic activity in large igneous provinces ⓘ
opening of the Central Atlantic Ocean ⓘ
beganAfter end-Triassic mass extinction ⓘ
carbonDioxideLevel higher than present atmospheric level ⓘ
characterizedBy diversification of marine reptiles ⓘ
dominance of gymnosperm floras ⓘ
early diversification of dinosaurs ⓘ
expansion of ammonites ⓘ
high sea levels ⓘ
radiation of bivalves ⓘ
recovery of marine ecosystems ⓘ
recovery of terrestrial ecosystems ⓘ
warm greenhouse climate ⓘ
widespread shallow epicontinental seas ⓘ
climate generally warm and humid ⓘ
contains Hettangian ⓘ
Pliensbachian ⓘ
Sinemurian ⓘ
Toarcian ⓘ
duration about 27 million years ⓘ
endTime approximately 174.1 million years ago ⓘ
firstStage Hettangian ⓘ
floraIncludes conifers ⓘ
cycads ⓘ
ginkgophytes ⓘ
seed ferns ⓘ
follows Late Triassic ⓘ
Rhaetian Age ⓘ
includesEvent Toarcian Oceanic Anoxic Event ⓘ
lastStage Toarcian ⓘ
marineFaunaIncludes ammonites ⓘ
belemnites ⓘ
brachiopods ⓘ
ichthyosaurs ⓘ
plesiosaurs ⓘ
oxygenLevel near or slightly below present atmospheric level ⓘ
partOf Jurassic Period ⓘ
precedes Middle Jurassic ⓘ
recognizedBy International Commission on Stratigraphy ⓘ
startTime approximately 201.3 million years ago ⓘ
stratotypeDefinedBy Global Boundary Stratotype Section and Point for base of Hettangian ⓘ
terrestrialFaunaIncludes early mammals ⓘ
early sauropod dinosaurs ⓘ
ornithischian dinosaurs ⓘ
pterosaurs ⓘ
theropod dinosaurs ⓘ
usedIn geologic time scale ⓘ

How these facts were elicited

Referenced by (25)

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

Jurassic → subdividedInto → Early Jurassic ⓘ
Jurassic Period → subdividedInto → Early Jurassic ⓘ
Watchung Mountains → geologicalPeriod → Early Jurassic ⓘ
breakup of Gondwana → startTime → Early Jurassic ⓘ
New Jersey Palisades → geologicalAge → Early Jurassic ⓘ
Tetanurae → timeOfFirstAppearance → Early Jurassic ⓘ
Late Triassic → precedes → Early Jurassic ⓘ
Pliensbachian → partOf → Early Jurassic ⓘ
Pliensbachian → subdivisionOf → Lower Jurassic Series ⓘ
linked to: Early Jurassic
Toarcian Oceanic Anoxic Event → partOf → Early Jurassic ⓘ
Global Boundary Stratotype Section and Point for base of Hettangian → marksBaseOf → Lower Jurassic Series ⓘ
linked to: Early Jurassic
Toarcian → partOf → Early Jurassic ⓘ
Toarcian → partOf → Lower Jurassic Series ⓘ
linked to: Early Jurassic
Hettangian stage → partOf → Early Jurassic epoch ⓘ
linked to: Early Jurassic
Hettangian stage → partOf → Lower Jurassic series ⓘ
linked to: Early Jurassic
Hettangian stage → startOf → Lower Jurassic series ⓘ
linked to: Early Jurassic
Jamesoni Zone → partOf → Early Jurassic ⓘ
Jamesoni Zone → temporalPosition → Early Jurassic Period ⓘ
linked to: Early Jurassic
Margaritatus Zone → partOf → Early Jurassic ⓘ
Spinatum Zone → partOf → Early Jurassic ⓘ
Spinatum Zone → belongsToEpoch → Early Jurassic Epoch ⓘ
linked to: Early Jurassic
T-OAE → occursIn → Early Jurassic ⓘ
Rhaetian Stage → precedes → Early Jurassic ⓘ