Vol. 68.] StrCCrSSION" IN THE j^rOETH-WEST OF ENGLAND. 507 



doubt that these beds may be correctly correlated with the Semimda- 

 (jregaina Sub-zone of the type-districts. The new forms of cup- 

 corals included in the foregoing list, though occasionally met with at 

 the same horizon in other portions of the Western Districts, occur 

 here in much greater abundance than elsewhere. The occurrence 

 of a few specimens of Camaroj^Jwria isorhynclia below the Spirifer- 

 furcatus Band on the east side of the outlier, is of interest, since the 

 horizon coincides with that at which this species is first met wath 

 in the Shap District, namely the Brownber Pebble-Bed. 



The Spirifer-furcatiis Band lies at the top of the quarries,, 

 and the fossils which it contains are somewhat rolled and frag- 

 mentary. The fauna has been tabulated above (p. 465), and, as 

 already pointed out,^ resembles very closely that of the Oatmeal Bed 

 near the summit of the Atliyri^-glahri stria Zone in the Docker- 

 Beck section at Shap. The bed forms the surface of the ground at 

 the southern end of Meathop Fell, and dips at about 5° south- 

 eastwards (that is, towards Arnside). At Meathop-Marsh Farm, 

 on the south-eastern side of the outlier, the beds are more bitu- 

 minous, and include a thin parting of black shale crowded Avith the 

 remains of Lo2:)Jwp7tj/Jhim meatJwjoense. East of the quarry this 

 shale-band disappears under the alluvium of the Kent estuary, and 

 has not been met with in the quarry-sections on the west. 



The Miclielinia Zone : its lowest portion, the Cama- 

 roj?horia-isorhynclia Sub-zone, is present in the Meathop 

 outlier, and, Avith the possible exception of a small block of fault- 

 breccia which comes to the surface in Arnside Moss, no other 

 exposure of this sub-zone is met with in the Arnside District. The- 

 base of the zone on Meathop Pell appears to lie immediately 

 above the Spirifer-furcatus Band at the southern end of the 

 Fell, and this corresponds with its position in the Docker-Beck 

 section at Shap, where it overlies the Oatmeal Bed. The beds 

 consist of a grey and purple, somewhat bituminous limestone 

 containing C. isorhynclia and Cyatliopliylhon cf. multilameUatum,. 

 overlain by a compact dolomite which forms the top of the Fell 

 (172 feet), and can be traced round to the summit of Meathop- 

 Marsh Quarry. Xo specimen of Miclielhua has been obtained in 

 situ on Meathop Fell, but the walls encircling the western end of 

 Limegarth Wood and the southern edge of the Fell contain numerous 

 specimens of that large form of M. grandis which is charac- 

 teristic of the sub-zone in Docker Beck, Elliscales and elsewhere. 

 Examples of C. isorJiyneJia and Zaphreiitis konincJci also occur 

 associated with JSlidielinia in these blocks. The blocks evidently 

 once formed portions of the dip-slope at the top of the Fell, and 

 this supposition is confirmed by the statement of the present 

 tenant, who informed the writer that the above-mentioned walls 

 were made from the rocks cropping out on the surface of the 

 Fell. 



1 Geol. Mag. dec. 5, vol. vii (1910) p. 118. 



