Time Marches on Section5 Flashcards
1
Q
the standard method used to divide the Earth’s long natural history into manageable parts
A
Geologic time scale
2
Q
a unit of geologic time into which eras are divided
A
period
3
Q
the largest division of geologic time
A
eon
4
Q
a subdivision of geologic period
A
epoch
5
Q
a unit of geologic time that includes two or more peridods
A
era
6
Q
the death of every member of a species
A
extinction
