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Intervals
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Orellan
184
Type
Age
Age range
33.9–32.1
Ma
International Timescale
Oligocene
Rupelian
Eocene
Priabonian
North American Land Mammal Ages
Whitneyan
Orellan
Chadronian
North American Regional
Whitneyan
Orellan
Chadronian
33.9
33.8
33.7
33.6
33.5
33.4
33.3
33.2
33.1
33.0
32.9
32.8
32.7
32.6
32.5
32.4
32.3
32.2
32.1
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