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Ordovician–Silurian true polar wander as a mechanism for mass extinction
- bediger4000 2y agoLong, original title: Ordovician–Silurian true polar wander as a mechanism for severe glaciation and mass extinction Not to counter the recent burst of "A supernova did it" posts, but rather to give some context on what kind of theories exist to explain the end Ordovician extinction.