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History Timeline Flashcards

A simple question, when?

Born, discovered, when did or will it, etc.

Great Oxidation Event: Third Atmosphere

~2.4 Billion Years Ago

Cause: Cyanobacteria Produce Oxygen
Plants Story 
Evolution.

Redwood Lineage Emerges

~95 Million Years Ago (+/- 5 million)

Tall, fire-resistant, long-lived conifer specialization.
Plants Story 
Plant Evolution.

Ginkgo biloba — A Living Fossil in My Backyard

~270 million years ago (± 20 million years)

Increased light capture area
Plants Story 
Plant Evolution.

The P-T Extinction

251,902,000 years ago (+/- 900 years).

Cause: Massive Volcanic Eruptions in Siberia
Plants Story 
Evolution.
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