INFERIOR OOLITE SERIES : CREWKERNE. 67 
Crewkerne to Stoford, near Yeovil. 
IN the neighbourhood of Crewkerne there are many opportuni- 
ties of studying the Inferior Oolite, in cuttings and quarries near 
the railway-station, and in quarries at Misterton and Haselbury.* 
The beds are frequently displaced by faults, but we find the 
general stratigraphical sequence to compare well with that noted 
near Bridport and Beaminster (p. 59). Each section, however, 
presents some differences in the lithological details and in the 
assemblages of fossils ; and it is difficult to define the limits of the 
zones. The upper beds, from 12 to 20 feet thick, consist of pale 
shelly and oolitic limestones with Ammonites Parkinsoni, and 
among the more characteristic fossils are Echinoderms. 
The lower beds comprise brown shelly and more or less iron- 
shot limestones, resting on pale-grey sandy and hard shelly lime- 
stones, with occasional iron-shot grains. These are altogether 
little more than 5 feet thick ; but they are very fossiliferous in 
places, and yield Ammonites Murchisonce and many Lamelli- 
branchs. These beds are more variable in character and in their 
fossil contents than the overlying beds, which belong to the zone 
of A. Parkinsoni, The iron-shot beds here, as further south, 
sometimes yield fossils that would assign them to the Upper 
Division of the Inferior Oolite ; and it would appear that these 
beds, while belonging mainly to the zone of A. Murchisonce, may 
locally include representatives of the zone of A. humphriesianus 
as well as of A. Parkinsoni. Long continued collecting of fossils 
from each individual bed is needful before we can state fully their 
palfeontological contents : for there is undoubtedly some com- 
mingling of species, elsewhere assigned to different zones, in these 
attenuated portions of the Inferior Oolite. 
The Midford Sand (Yeovil Sand) comprises, in its upper 
part, sands and loamy beds that are more or less indurated ; and 
they contain Khynchonella cynocephala, Terebratula infra-oolitica , 
T. maxillata (young forms ?), and Serpula tricarinata, as at Stoke 
Knap, near Beaminster. These fossiliferous beds are well seen in 
the top 6 feet of the formation. The higher portions of the 
Sand, for a thickness of about 90 feet, consist mainly of sands, 
with indurated bands of calcareous sandstone, and layers of 
comminuted-shell-limestone. Lower down, for nearly 100 feet, 
we find sands, that become bluish and shaly towards the base, 
where they merge into the shales of the Upper Lias. 
The railway-cutting west of Crewkerne railway-station, exposed 
a good section of these fossiliferous sandy beds (zone of Ammonites 
opalmvs), overlaid by the limestones previously described (see 
Fig. 34). These beds are faulted obliquely across the railway, 
against the Fuller's Earth. 
The Midford Sand, with bands of sandy limestone, was 
exposed in Mr. Lye's brickyard, south-east of the brewery at 
Crewkerne, The beds were opened up to a depth of 15 feet, and 
* H. B. W., Proc. Somerset Arch. Soc., vol. xxxvii, p. 60. 
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