Vocab Words10 cards

Tagged as: earth, algebra, math

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1

Pangaea

a great landmass or super continent formed about 260 million years ago.

2

mass extinction

occurs when a large proportion of the earth's species go extinct in a relatively short period of time.

3

Paleozoic era

began about 544 mya and lasted for almost 300 million years ago.

4

Mesozoic era

began about 245 mya known as the age of dinosaurs.

5

Cenozoic era

are that began about 66 mya known as the age of the mammals.

6

Eon

the largest division of geologic time.

7

Era

a unit of the geologic time that includes two or more periods.

8

Period

a subdivision of the eras in geologic period.

9

Epoch

a subdivision of a geologic period

10

Order: Greatest to Least

Eon > Era > Period > Epoch