|
gptkbp:instanceOf
|
gptkb:geological_formation
|
|
gptkbp:characterizedBy
|
gptkb:Antarctic_glaciation
expansion of grasslands
global cooling
evolution of early mammals
|
|
gptkbp:climate
|
cooler and drier than Eocene
|
|
gptkbp:contains
|
gptkb:Chattian_Age
gptkb:Rupelian_Age
|
|
gptkbp:continent
|
further drift toward modern positions
|
|
gptkbp:duration
|
about 11 million years
|
|
gptkbp:endDate
|
23.03 million years ago
|
|
gptkbp:etymology
|
from Greek 'oligos' (few) and 'kainos' (new)
|
|
gptkbp:followedBy
|
gptkb:Miocene_Epoch
|
|
gptkbp:marineLife
|
diversification of mollusks
evolution of modern whales
|
|
gptkbp:namedFor
|
gptkb:Heinrich_Beyrich
|
|
gptkbp:notableSite
|
early elephants
early horses
anthropoid primates
|
|
gptkbp:partOf
|
gptkb:Paleogene_Period
|
|
gptkbp:precededBy
|
gptkb:Eocene_Epoch
|
|
gptkbp:significance
|
marks transition to modern ecosystems
|
|
gptkbp:significantEvent
|
formation of Antarctic ice sheet
separation of South America and Antarctica
|
|
gptkbp:startDate
|
33.9 million years ago
|
|
gptkbp:terrestrialLife
|
decline of archaic mammals
expansion of mammals
|
|
gptkbp:yearNamed
|
1854
|
|
gptkbp:bfsParent
|
gptkb:Eocene_Epoch
gptkb:Paleogene_Period
gptkb:Miocene_Epoch
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Oligocene Epoch
|