Timeline earth and sciences

Review assignment – Timeline of Earth’s Major Events

1. Separate out the following events into: 1) life/extinction events and 2) tectonic/climatic events.
2. Place each set of events in order from oldest to youngest on a timeline.
3. Include the dates that you are responsible for knowing.
4. Highlight the eons, eras, periods and epochs you are meant to memorize.
5. Note which eon, era and period each event is associated with.

Try your best to do this first without looking at your notes or the textbook.

Acasta gneiss

Amniotes evolve

Angiosperms appear

Banded Iron Formations appear

Basin and Range in the SW US forms

Birds evolve from therapods

Cascade continental volcanic arc forms

Coast Mountains of BC form

Colorado Plateau in the SW US starts to form/uplift

Columbia Plateau in the NW US forms/Yellowstone Hot Spot lavas erupt

Continental crust appears (oldest mineral grain).

Continental Glaciers first appear (earliest evidence)

Dinosaurs appear/true mammals appear

Eukaryotes appear (oldest molecular fossil)

Genus homo appears

Gymnosperms evolve

Himalayas start to form

Hominins appear

Homo sapiens appear

K-T mass extinction event

Land plants appear (preserved spores in fossil record)

Land vertebrates/earliest amphibians appear (Tiktaalic)

Liquid water first appears

Mammal-like synapsids appear

Placental mammals diversify

Metazoan fossils appear

Moon forms

Ocean crust appears (not oldest preserved)

Oceanic crust, oldest preserved

Pangea assembles/final formation of the Appalachian Mountains

Pangea starts to break up/Mid-Atlantic Ridge first forms

Permian mass extinction event/eruption of Siberian Trapp lavas

EAES 1121 NAME: _______________

Plate tectonics are active (first direct evidence)

Rocky Mountains of BC first form

Rodinia forms

Rodinia starts to break up

Snowball Earth ends

Snowball Earth forms

Stromatolites appear (oldest preserved prokaryotes)

Vertebrates/earliest fish appear