Geological Time Exercise
Terms in this set (16)
Which era is the age of the mammals?
Which era is the age of the dinosaurs?
Which era is the age of the trilobites?
What eon do we live in?
What does the eon name phanerozoic mean?
When was the Cambrian Explosion?
570 to 505 mya
In which eon did the sun and earth form?
In which eon did life originate?
From which eon come the earliest known fossils?
Photosynthesis began how many mya?
Photosynthesis marks the beginning of what eon?
Multicellular organisms appeared in which eon?
The Cambrian period is part of which era?
When did most of the phyla we study first appear?
The Great Dying/Extinction was ____ mya, and separates these two eras, the _______ and ______
245 mya, Paleozoic and Mesozoic
The "K-T Event/Extinction" was ____ mya and separates these two eras, the ______ and ______
66 mya, Mesozoic and Cenozoic
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