Mass extinction events read from the rock and fossil record: Permian-Triassic Extinction Event, Cretaceous-Paleogene Extinction Event, Late Ordovician Mass Extinction, Late Devonian Extinction and Triassic-Jurassic Extinction Event, the so-called Big Five. Belongs here: a mass extinction event whose primary evidence is the stratigraphic and fossil record. Does not belong here: the impact or volcanic event sometimes proposed as an extinction's cause, held under Geochronology or Volcanology where that is the phenomenon's own primary identity, such as the Chicxulub Impact.
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Field of StudyStratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification). 1 All Stratigraphy
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1. Stratigraphy (Wikipedia)
Wikimedia FoundationStratigraphy, lead section (phenomenon-discipline bucket)Quote, Stratigraphy, lead section (phenomenon-discipline bucket)
Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification).
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