Table :
table 24.2 Subdivisions of the Cenozoic Era
Period
Epoch
Onset (mya)
Quaternary
Holocene (Recent)
0.01 (~10,000 years ago)
Pleistocene
2.6
Tertiary
Pliocene
5.3
Miocene
23
Oligocene
34
Eocene
55.8
Paleocene
65.5