The atlas · Fossils and extinction · Mass extinctions
Outline · being written
The end-Ordovician extinction
The first of the five great extinctions, and its link to a short ice age.
- Page type
- An encyclopaedia entry
- Collection
- Fossils and extinction, mass extinctions
- When
- About 445 million years ago to 443 million years ago, in the Ordovician and Silurian. The finished piece will give dates from its sources.
- Status
- Planned and outlined. Every fact in it will be checked against a named source and listed on Sources before it goes up.
Read alongside
- Mass extinctions Lesson
- The Late Devonian extinction Encyclopaedia · outline
- The end-Permian extinction Encyclopaedia · outline
- The end-Triassic extinction Encyclopaedia · outline
- The end-Cretaceous extinction Encyclopaedia · outline