Porth-y-rhaw Group
Geology
Formations: Menevia (2)
Lithologies: mudstone (1), "shale" (1), sandstone (1)
Paleoenvironments: coastal indet. (1), deep-water indet. (1)
Age range: Menevian or 504.50000 to 499.50000 Ma
Porth-y-rhaw Group
Formations: Menevia (2)
Lithologies: mudstone (1), "shale" (1), sandstone (1)
Paleoenvironments: coastal indet. (1), deep-water indet. (1)