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Mayan
1695
Type
Age
Age range
504.5–498.5
Ma
International Timescale
Miaolingian
Guzhangian
Drumian
Wuliuan
Siberian Regional
Ayusokanian
Mayan
Amgan
Russian Stages
Ayusokanian
Mayan
Amgan
504.5
504.0
503.5
503.0
502.5
502.0
501.5
501.0
500.5
500.0
499.5
499.0
498.5
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