The Aran Volcanic Group is a geological group in Wales. It preserves fossils dated to the Ordovician period. It is laterally equivalent with sedimentary rocks of…
The Aran Volcanic Group is a geological group in Wales. It preserves fossils dated to the Ordovician period. It is laterally equivalent with sedimentary rocks of the Ogwen Group, parts of which are interbedded with it.
See also
List of fossiliferous stratigraphic units in Wales
References
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