Mesozoic Era
E8188
The Mesozoic Era was a major geological era, often called the "Age of Reptiles," during which dinosaurs dominated the land and the supercontinent Pangaea broke apart into modern continents.
Aliases (5)
- Mesozoic ×12
- Mesozoic era ×5
- Age of Dinosaurs ×1
- Age of Reptiles ×1
- MesozoicEra ×1
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
eon subdivision
→
geological era → |
| biologicalInnovation |
diversification of reptiles
→
early diversification of mammals → evolution of true birds from theropod dinosaurs → origin of flowering plants → |
| characterizedBy |
breakup of supercontinent Pangaea
→
dominance of dinosaurs on land → high sea levels for much of the era → warm global climate → |
| climate |
generally greenhouse conditions
→
little to no polar ice for much of the era → |
| duration |
about 186 million years
→
|
| endedByEvent |
Cretaceous–Paleogene mass extinction
→
|
| endTime |
about 66 million years ago
→
|
| followedBy |
Cenozoic Era
→
|
| follows |
Paleozoic Era
→
|
| hasPart |
Cretaceous Period
→
Jurassic Period → Triassic Period → |
| majorLifeForm |
ammonites
→
early angiosperms → early birds → early mammals → gymnosperms → marine reptiles → non-avian dinosaurs → pterosaurs → |
| massExtinctionCount |
two major mass extinctions at its boundaries
→
|
| nicknamed |
Age of Dinosaurs
→
Age of Reptiles → |
| notableEvent |
appearance of the first flowering plants
→
extinction of non-avian dinosaurs at its end → rise and radiation of dinosaurs → |
| oceanLife |
abundant ammonites and belemnites
→
diverse marine reptiles such as ichthyosaurs and plesiosaurs → |
| paleogeography |
continents initially united as Pangaea
→
further fragmentation into modern continents → progressive separation into Laurasia and Gondwana → |
| partOf |
Phanerozoic Eon
→
|
| precededByEvent |
Permian–Triassic mass extinction
→
|
| startTime |
about 252 million years ago
→
|
| stratigraphicUnit |
middle era of the Phanerozoic Eon
→
|
| tectonicProcess |
formation of modern continental configurations
→
opening of the Atlantic Ocean → rifting of Pangaea → |
| timeScalePosition |
between 252 and 66 million years ago
→
|