Template:Period start: Difference between revisions
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number updates (TPER) |
per edit request on talk page - update age of shale |
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|burgess shale|middle middle cambrian<!--Middle middle is approximate; cf. Burgess Shale-->= |
|burgess shale|middle middle cambrian<!--Middle middle is approximate; cf. Burgess Shale-->=505 |
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|chengjiang=518 |
|chengjiang=518 |
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|sirius passet=518 |
|sirius passet=518 |
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