Timeline earth and sciences
Review assignment – Timeline of Earth’s Major Events
Separate out the following events into: 1) life/extinction events and 2) tectonic/climatic events.
Place each set of events in order from oldest to youngest on a timeline.
Include the dates that you are responsible for knowing.
Highlight the eons, eras, periods and epochs you are meant to memorize.
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
