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Geologic Time Flashcards | StudBud
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Geologic Time
Pangaea formed
This has been called the age of fishes.
Geologic Time
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1
This has been called the age of fishes.
Cenozoic Era
Mesozoic Era
Precambrian Era
Paleozoic Era
2
Pangaea formed
Mesozoic Era
Paleozoic Era
Cenozoic Era
Precambrian Era
3
The formation of Earth began by circling gases
False
True
4
The first reptiles were found during what era?
Cenozoic Era
Put the Era’s in order from earliest to today’s era Era
Mesozoic Era
Paleozoic Era
5
The largest subdivision of geologic time, based on large amounts of fossils.
Periods
Eras
Epochs
Eons
6
This era closed with two great events: the rise of the Rocky Mountains and the extinction of the dinosaurs.
Paleozoic Era
Mesozoic Era
Cenozoic Era
Precambrian Era
7
Scientists hypothesize that Earth formed about
4.5 BYA
6000 TYA
5.5 BYA
2.5 BYA
8
Era’s in order from earliest to today’s era
Cenozoic, Paleozoic, Mesozoic, Precambrian
Precambrian, Paleozoic, Mesozoic, Cenozoic
Cenozoic, Precambrian, Paleozoic, Mesozoic,
Precambrian, Paleozoic, Cenozoic, Mesozoic
9
Eras are based on rock strata, with the oldest layer being on the top, and the youngest layer on the bottom.
True
False
10
More than 600 million years ago. This period is thought to be when complex forms of life evolved.
Precambrian Era
Paleozoic Era
Cenozoic Era
Mesozoic Era
11
This era is best known as the age of dinosaurs.
Cenozoic Era
Precambrian Era
Mesozoic Era
Paleozoic Era
12
Homo sapiens (humans) evolved during this era, and the mountain ranges of the Himalayas and the Alps were formed.
Mesozoic Era
Paleozoic Era
Precambrian Era
Cenozoic Era
