146 
PROCEEDINGS COTTESWOLD CLUB 
1916 
No Wenlock shales are to be seen in this Anticline, owing 
to the fault to the North of Cwm Dowlais, which has let down 
Ludlow beds. 
This rock is only exposed in Cwm Dowlais, and is there 
well seen in several quarries. The lowest bed seen is a com- 
pact encrinital limestone, of which five feet are visible, and 
over this come 12 feet of irregular limestone bands with shale 
partings, then 10 feet of compact encrinital limestone, and 
then more thin irregular limestone bands with shale partings. 
The fossils from these quarries have already been recorded in 
the listen p. 141, and correspond with those found in the Wen- 
lock limestone of the Coed-y-paen Anticline. 
To the East of the Cwm Dowlais Limestone, there were 
well seen in 1913 in a new road-cutting, dark green, earthy 
sandstones, which dipped 40° E. S. E., and were about 500 feet 
above the limestone. 
Similar beds with calcareous bands are exposed in an old 
quarry just by Little Cwm Dowlais Farm, and at Little Hill 
to the South, where the Old Red Sandstone is seen, very close 
to them. They are constantly exposed in the road, which 
runs Westwards towards Porth-llong, and in the stream running 
down to Little Cwm Dowlais. 
Further to the South Ludlow Sandstones occur in the 
wood to the North of Llangibby Castle, and the Castle itself 
is on sandstones and sandy shales. These are veiy fossiliferous 
at the extreme corner of the wood slightly to the West of the 
Castle. 
To the South of the fault which runs through Llangibby 
Park, Ludlow beds are seen in a quarry to the East of the 
patch of Old Red Sandstone, which occurs near Graigwith 
House. Here they dip 36° W.S.W., and contain ; — 
{a) THE WENLOCK LIMESTONE. 
[b) THE LUDLOW BEDS. 
Stropheodonta sp. 
Chonetes striatella 
Orthis lunata 
Holopella gregaria 
Holopella sp. 
Phacops caudatus 
