Early Oligocene subepoch

33.9 - 27.82 Ma

The definition of this interval in the timescale Cenozoic Subepochs is taken from the following source:

  • W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view

There are intervals in 7 timescales which overlap this one. show

This interval is used in the definition of 771 collections

A total of 2804 collections with 23105 occurrences lie within this time span

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International Chronostratigraphic TimescaleCenozoic SubepochsPaleogene Mammal Ages of Asia
QuaternaryHoloceneMeghalayan0
Northgrippian0.0042
Greenlandian0.0082
PleistoceneLate PleistoceneLate Pleistocene0.0117
ChibanianMiddle Pleistocene0.129
CalabrianEarly Pleistocene0.774
Gelasian1.8
NeogenePliocenePiacenzianLate Pliocene2.58
ZancleanEarly Pliocene3.6
MioceneMessinianLate Miocene5.333
Tortonian7.246
SerravallianMiddle Miocene11.63
Langhian13.82
BurdigalianEarly Miocene15.98
Aquitanian20.44
PaleogeneOligoceneChattianLate OligoceneTabenbulakianHsandagolian23.03
RupelianEarly OligoceneKekeamuan27.82
EocenePriabonianLate EoceneHouldjinian/Ergilian/Ulangochuian33.9
BartonianMiddle EoceneSharamurunian/Irdinmanhan/Arshantan37.71
Lutetian41.2
YpresianEarly EoceneBumbanian47.8
PaleoceneThanetianLate PaleoceneGashatan56
SelandianMiddle Paleocene59.2
DanianEarly Paleocene61.6
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