Short interval of elevated extinction rate across many taxa. Big Five: Ordovician-Silurian, Late Devonian, Permian-Triassic (~96% marine species), Triassic-Jurassic, K-Pg (dinosaurs, Chicxulub impact).
Short interval of elevated extinction rate across many taxa. Big Five: Ordovician-Silurian, Late Devonian, Permian-Triassic (~96% marine species), Triassic-Jurassic, K-Pg (dinosaurs, Chicxulub impact).