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Dorcadospyris alata
1639
Type
Zone
Age range
15.68–11.95
Ma
International Timescale
Miocene
Serravallian
Langhian
Low Latitude Radiolarian Zonation
Diartus petterssoni
Dorcadospyris alata
Calocycletta costata
15.8
15.6
15.4
15.2
15.0
14.8
14.6
14.4
14.2
14.0
13.8
13.6
13.4
13.2
13.0
12.8
12.6
12.4
12.2
12.0
11.8
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