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Whitneyan
185
Type
Age
Age range
32.1–29.8
Ma
International Timescale
Oligocene
Rupelian
North American Land Mammal Ages
Arikareean
Whitneyan
Orellan
North American Regional
Arikareean
Whitneyan
Orellan
32.2
32.1
32.0
31.9
31.8
31.7
31.6
31.5
31.4
31.3
31.2
31.1
31.0
30.9
30.8
30.7
30.6
30.5
30.4
30.3
30.2
30.1
30.0
29.9
29.8
29.7
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