190 
CARBONIFEROUS LIMESTONE SERIES. 
out in making a small pond about 300 yards W.S.W. of Yew 
Tree Cottage. The Bryozoa-bed resting on a thick band of 
compact, largely oolitic limestone, gritty in places, is exposed 
at two points near Funny Row, W. of Failand Farm, and thick 
shales are seen at the western end of the footpath leading W. 
from Funny Row. Several exposures of thin-bedded limestones 
of K-type are seen in the neighbourhood of Ox House Bottom. 
The old trial shaft of the Portishead Water Works, Lower 
Failand, penetrated the lower part of the K-beds before entering 
the Old Red Sandstone, as is seen from the debris thrown out. 
The quarry at the bend of the road near Failand Hill House 
was determined by Vaughan (Bristol paper, p. 215) as hor. /3, 
the rock contains much chert. The K-beds are fairly well seen 
in the Failand road section (described by Vaughan 1 ) for some 
300 yards to the S. of Racecourse Farm. The Bryozoa-bed is 
exposed in the farmyard. The zonal fossil Cleistopora 
geometrica has been found in this section. 
An excellent section of part of K, including the Bryozoa-bed, 
is seen in an old quarry 300 yards E. of Charlton House. The 
section is as follows : — 
ft. ins. 
4. Bryozoa-bed, red crinoidal limestone 4 6 
3. Shale parting ... ... ... ... ... ... 3 
2. Limestone interbedded with thin-bedded flaggy 
bands 2 6 
1. Limestone compact at the top, but in the main 
coarsely oolitic and crinoidal, including also 
gritty bands and coarsely crinoidal non-oolitic 
bands 6 6 
13 9 
Band 1 in the above section is also well exposed in a small 
quarry S.E. of Combe Cottage, a small farm lying W. of the 
Portbury road and \ mile N.W. of Racecourse Farm. The 
upper beds here are strongly oolitic, the grains being partly 
ironshot, the lower crinoidal and less markedly oolitic. The 
coarse oolite seen here and at Abbot's Leigh is closely similar 
to a band of rock occurring at the same level in the Burrington 
Combe section, but not hitherto met with anywhere else in the 
Bristol area. 
Passing westward no exposures of K-beds were met with till 
the Bryozoa-bed was found at the southern end of Bullock's 
bottom, a wooded valley J mile N.N.E. of Moat House Farm. 
A highly fossiliferous development of K 2 is seen by a little pond 
about the same distance N.W. of Moat House Farm. Before 
the Clapton road is reached near Nash House the K-beds are 
faulted against the Pennant Sandstone, and are seen no more 
in the area which is the subject of this oaper. 
1 Bristol Paper, pp. 214-5. 
