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Vocab Words10 cards
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a great landmass or super continent formed about 260 million years ago.
occurs when a large proportion of the earth's species go extinct in a relatively short period of time.
began about 544 mya and lasted for almost 300 million years ago.
began about 245 mya known as the age of dinosaurs.
are that began about 66 mya known as the age of the mammals.
the largest division of geologic time.
a unit of the geologic time that includes two or more periods.
a subdivision of the eras in geologic period.
a subdivision of a geologic period
Eon > Era > Period > Epoch
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