PROCEEDINGS COTTESWOLD CLUB 
148 
1916 
The Sandstone is a Ludlow bed containing Ortkis lunaia 
and Dayia navicula. It is well seen in a road cutting close to 
Cefn Ila Lodge. 
Near Llanbadoc there are numerous exposures in sand- 
stones and impure calcareous beds. These have been cut 
back by the Usk and Alluvium laid down, which extends to 
an old river cliff that rises to a height of 150 feet above the 
river. 
The face of this cliff has been quarried at its base, and 
its upper part is well shown in diggings near Pear Tree 
Cottage. 
In a large quarry by the roadside to the North-East of 
Llanbadoc Church there are seen about 70 feet of blue-grey 
impure limestone covered by 30 feet of sandy beds, all dipping 
Eastwards. This is the only locality where any considerable 
thickness of calcareous beds occurs in the Ludlow deposits. 
Similar beds are seen behind the Parish Room a little 
nearer Usk. At both places fossils are abundant. There 
have been obtained the following : — 
Ischadites Kcenigi. 
Cyathophyllum ? sp. 
Stropheodonta filosa. 
Leptcena rhomboidalis. 
Strophonella euglypha. 
, , funiculata. 
Chonetes cf. Piperi. 
Oythis af}. reversa. 
Wilsonia Wilsoni. 
A try pa reticularis. 
Spirifer crisp us. 
, , plicatellus. 
Meristina tumida ? 
Pterinea lineatula. 
,, pleuroptera. 
Pteronitella inexpectata. 
PalcBopecten Danbyi. 
A mbonychia striata. 
Gosseletia 2'awneyi 
Ortho not a sp. 
Pleurotoniaria Lloydi 
Eccyliomphalus Icevus. 
Craspedostoma ? sp. 
Bellerophon acutus. 
Orthoceras sp. 
Phacops caudatus. 
Proceeding Northwards, one now crosses the Usk and its 
alluvium, which stretches up to the foot of the ridge on which 
Usk Castle stands. This ridge is pierced by the railway 
tunnel, which opens at its Western end into a deep cutting in 
which the station is built. Here there is a fine exposure of 
hard Ludlow sandstones, which dip 20° S., are grey and light 
green in colour, and contain in their upper part a few calcareous 
nodules. 
Yellow sandstones are seen dipping 20° S.E. in the lanes 
to the North of the Castle near the Eastern end of the tunnel, 
but the fault line which separates these beds from the Old 
Red Sandstone to the East is not seen. Red soil in the 
