3-5 Time Marches On Flashcards
1
Q
the standard method used to divide the earth’s long natural history manageable parts
A
geologic time scale
2
Q
the largest division of geological time
A
eon
3
Q
a unit of geological time that includess two or more periods
A
era
4
Q
the death of every member of a species
A
extinction
5
Q
a subdivision of a geological time period
A
epoch
6
Q
a unit of geological time into which eras are divided
A
period
7
Q
age of reptiles
A
Mesozoic era is known as…
8
Q
age of mammals
A
Cenozoic era is known as…
