Lesser Extinctions
Lesser extinction events include:
| Period | Start Date | Extinction | Date | Cause |
|---|---|---|---|---|
| Quaternary extinction event | 50 ka to now | |||
| Pliocene | Pliocene–Pleistocene boundary marine extinction | 2 Ma |
Supernova in the Scorpius-Centaurus OB association |
|
| Neogene | 23.03 | Middle Miocene disruption | 14.5 Ma | Nördlinger Ries bolide impact? Volcanoes in African Rift Valley |
| Eocene–Oligocene extinction event | 33.9 Ma | Volcanoes? Chesapeake Bay and Popigai crater bolide impacts? | ||
| Cretaceous | 145 | Aptian extinction | 117 Ma | Rahjamal Traps volcanism episode in Bengal? |
| End-Jurassic extinction | 145.5 Ma | |||
| Jurassic | 201.3 | Toarcian turnover | 183 Ma | |
| Permian | 298.9 | Olson's Extinction | 270 Ma | |
| Carboniferous | 358.9 | Carboniferous Rainforest Collapse | 318 Ma | Climate change |
| End-Silurian extinction event | 416 Ma | |||
| Lau event | 420 Ma | |||
| Mulde event | 424 Ma | Global drop in sea level? | ||
| Silurian | 443.4 | Ireviken event | 428 Ma | Deep-ocean anoxia? |
| Cambrian–Ordovician extinction event | 488 Ma | Glaciation? Depletion of oxygen in marine waters? | ||
| Dresbachian extinction | 502 Ma | |||
| Cambrian | 541 | End-Botomian extinction event | 517 Ma | |
| Precambrian | 4567.17 | End-Ediacaran extinction | 542 Ma | Ocean anoxia? |
Read more about this topic: Extinction Event
Famous quotes containing the word lesser:
“I think there’s never a man in Christendom
Can lesser hide his love or hate than he,
For by his face straight shall you know his heart.”
—William Shakespeare (1564–1616)