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Cryptocarpium azyx
1649
Type
Zone
Age range
37.7–36.4
Ma
International Timescale
Eocene
Priabonian
Bartonian
Low Latitude Radiolarian Zonation
Calocyclas bandyca
Cryptocarpium azyx
Podocyrtis goetheana
37.7
37.6
37.5
37.4
37.3
37.2
37.1
37.0
36.9
36.8
36.7
36.6
36.5
36.4
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