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Bekoma bidartensis
1659
Type
Zone
Age range
56.9–52.85
Ma
International Timescale
Eocene
Ypresian
Paleocene
Thanetian
Low Latitude Radiolarian Zonation
Buryella clinata
Bekoma bidartensis
Bekoma campechensis
57.0
56.8
56.6
56.4
56.2
56.0
55.8
55.6
55.4
55.2
55.0
54.8
54.6
54.4
54.2
54.0
53.8
53.6
53.4
53.2
53.0
52.8
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