Geological Column Flashcards
1
Q
Eons from oldest to youngest
A
Precambrian, Phanerozoic
2
Q
Precambrian Eras from oldest to youngest
A
Hadean, Archean, Proterozoic
3
Q
Phanerozoic eras from oldest to youngest
A
Lower Palaeozoic, Upper palaeozoic, Mesozoic, Cenozoic
4
Q
Lower Palaeozoic periods from oldest to youngest
A
Cambrian, Ordovician, Silurian
5
Q
Upper palaeozoic periods from oldest to youngest
A
Devonian, Carboniferous, Permian
6
Q
Mesozoic periods from oldest to youngest
A
Triassic, Jurassic, Cretaceous
7
Q
Cenozoic periods from oldest to youngest
A
Palaeogene, Neogene, Quaternary
8
Q
Hadean age
A
4.56 billion years
9
Q
Archean age
A
4 billion years
10
Q
Proterozoic age
A
2.5 billion years
11
Q
Cambrian explosion age
A
541 million years
12
Q
Permian-Triassic extinction (the great dying) age
A
252 million years
13
Q
KT extinction age
A
66 million years
