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         0 mya
         20 mya
         35 mya
         50 mya
         65 mya
         90 mya
         105 mya
         120 mya
         150 mya
         170 mya
         200 mya
         220 mya
         240 mya
         260 mya
         270 mya
         300 mya
         340 mya
         370 mya
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