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Cultural Objects Names Authority
Hierarchy Display
Cultural Objects Names Authority
®
Iconography Hierarchy
Click the
icon to view the hierarchy.
Top of the IA Hierarchies
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Named Events
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<Named natural events>
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Triassic-Jurassic extinction event (global, 201.3 million years ago)
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Tools Cultural Objects Names Authority
Cultural Objects Names Authority® Iconography Hierarchy
icon to view the hierarchy.
