Eocene

System/ Period
Series/ Epoch
Stage/ Age
Age (Ma)
Age (Ma)
Neogene
Miocene
Aquitanian
younger
younger
Paleogene
Oligocene
Chattian
23.03
27.82
Paleogene
Oligocene
Rupelian
27.82
33.9
Paleogene
Eocene
Priabonian
33.9
37.8
Paleogene
Eocene
Bartonian
37.8
41.2
Paleogene
Eocene
Lutetian
41.2
47.8
Paleogene
Eocene
Ypresian
47.8
56.0
Paleogene
Paleocene
Thanetian
56.0
59.2
Paleogene
Paleocene
Selandian
59.2
61.6
Paleogene
Paleocene
Danian
61.6
66.0
Cretaceous
Upper/ Late
Maastrichtian
older
older
Subdivision of the Paleogene Period according to the ICS, as of 2017.
Subdivision of the Paleogene Period according to the ICS, as of 2017.
Subdivision of the Paleogene Period according to the ICS, as of 2017.
Subdivision of the Paleogene Period according to the ICS, as of 2017.
Subdivision of the Paleogene Period according to the ICS, as of 2017.

Question: When did the Eocene Epoch period begin and end and which period of the paleogene period was it?
Answer: The Eocene Epoch, lasting from 56 to 33.9 million years ago and the second epoch of the Paleogene Period.