VOL. XIX. (2) 
THE STUJRI,\N INUER OF USK 
M3 
therefore, the summit of the Limestone is not the summit of 
tlie Wenlock beds. The decision on this point must, however, 
be left till more exposures are made in the beds just above the 
limestone. In these beds were found : — 
Favositella i>iter punctata ? Chonetes ceratoides Wilsoyiia Davidsoni 
Styopheodonta filosa Chonetes sp. Rhynchotreta ciineata ? 
Leptcena rhomboidalis Orthis elegantida Atrypa reticularis 
Plectamhonites transversalis Pentamerus [Sieberella) Spirifer crispus 
Strophonella fiiniculata galeatus ,, elevatus 
,, euglypha Wilsonia U^ilsoni ,, plicatellus 
Orthothetes pecten 
Above the Glascoed mass of Limestone, sandy shales, 
with calcareous nodules about 150 feet above the Limestone, 
are seen at (90), and here occurred 
Crinoid remains Chonetes striatella Wilsonia Davidsoni 
Leptcena rhomboidalis Orthis lunata Atrypa reticularis 
In a quarry to the West of the Sor brook, by the side of the 
road near Cwm Bwrwch, is seen sandstone, in which are layers 
of corals {Favosites) and similar sandy beds with coral layers 
occur at the same horizon, about 840 feet above the Wenlock 
Limestone, in Pantau Bushes close to Trostra Common. 
The highest beds of Ludlow age are exposed along the 
Western and Southern margins of the Coed-y-paen Anticline. 
The Old Red Sandstone and underlying Ludlow beds along 
the Western margin both dip at low angles to the South-West 
or South-South-West. The Old Red Sandstone generally 
forms high-ground with a steep slope leading down to the Lud- 
low beds, and it is not very often that there is an exposure of 
either rock. The Silurian beds are to be seen in the road 
about 300 yards south of Trostra Farm, in a streamlet half a 
mile further to the south and by the roadside near Brook Farm, 
to the east of Llanthewy Court. The rock is a brown or green 
sandstone and fossiliferous. Further to the South a stream 
has cut back near Granary Wood into the Old Red Sandstone 
scarp, and, though no actual exposure of Ludlow sandstones 
is seen, there are plenty of fossiliferous blocks in the wood. 
Continuing along the margin of the Inlier, we pass Llan- 
thewy Vach Church, and round the nose of the Anticline up to 
Llandegveth Church. There is an old quarry close to the 
Farmers ’Arms, near the latter Church, where the rock is a brown 
sandstone, with some sandy shales, and is very fossiliferous. 
L 
