Difference between revisions 1725627 and 1725629 on cywiki

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Llinell amser ddaearegol
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<tr>
<th style="background:#efefef;">Blynyddoedd CP<sup>3,6</sup></th>
<th style="background:#efefef;">[[Cyfres (stratigraffeg)|Epoc]] /<br/>Cyfres</th>
<th style="background:#efefef;" colspan="2">Cyfnod Daearegol<sup>4,5</sup></th>
<th style="background:#efefef;">Gorgyfnod</th>
(contracted; show full)4.57 biliwn- ffurfiad y [[Ddaear]]
</td>
</tr>
</table>

[[Categori:Cyfnodau daearegol| ]]
[[Categori:Daeareg]]
[[Categori:Gwyddorau daear]]