You are going to construct a time line of the major events of Earth’s history concerning the evolution of life. On this timeline, you should list the events that we discuss in class AS WELL AS information about each of these events. This timeline will serve as a very helpful study guide for you. Please do not use use quotation marks.
Format: The format for this is free form! You may: write a scene of a play, write a rap or song, make a video, write a short story, make it using craft supplies or drawings, Prezzi, PowerPoint, a website, whatever you want. If you are unsure of a format, please feel free to talk to your instructor. Creativity is part of your grade
All of the events must have the following information: name of event, geologic time AND the name of the unit (e.g., Cambrian Period (542 million years ago). What happened during the event. How do we know (i.e., the evidence for the event). The time line MUST be in chronological order
Here is an example: The Great Oxygenation Event: 2.5bya. Initiation of oxygen rise in Earth’s atmosphere. Evidence includes: lack of pyrite deposits; presence of gypsum (mineral that can only form in oxygen); disappearing of Banded Iron Formations, rise of multicellular life. Basic information such as this is the minimum that you should have.
Special note: for events that happened BEFORE 542 million years ago, you do not need to go smaller than eons. Please refer to the geologic time scales provided in Canvas Modules so that you have easy access to geologic time scale terms!
Minimum events that should be put into your assignment :
-Origin of Earth
-Iron Catastrophe (there isn’t an official “date” for this event-you may give a range of time for when this event likely happened)
-First multicellular life
-Great Oxygenation Event
-First animals on land
– Devonian Extinction
-Formation of Pangea
-Origination of dinosaurs
-Cretaceous-Paleogene extinction (K-Pg)
-Paleocene-Eocene Thermal Maximum
-Great American Biotic Interchange
-First human fossils (this date might change depending on how you classify human-first Homo? First bipedal creatures? It’s up to you-but you must tell us why you chose the date that you did)
-Younger Dryas Event
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