Yol. 60.] IGNEOUS ROCKS OF THE BRISTOL DISTRICT. 140 



(2) At Spring Cove, Weston-super-Mare. 



In a red ashy bed, which marks the earliest stage of the volcanic 

 phase, large examples of Campophyllum cylwdricum, Scouler, 

 indicative of the upper part of Group B are conspicuous. In the 

 lowest bed on the foreshore cornute Zaphrentids occur 



'together with a coral which exhibits characters transitional between those of 

 the Cyathophyllum- (Strephodes) and Campopkylhim-types.' 



Again, about 100 feet above the lava, in a mural face below the 

 western end of Worlebury Camp, occur in abundance the cha- 

 racteristic fossils of Group C. Commenting on the fossils obtained 

 thence, Mr. Vaughan says 



' Streptorhynchus crenistria, Leptana analoga, Productus Martini, Pr. elcgans, 

 and Spirifer cuspidatus leave no possible doubt of tbe horizon.' 



The Spring-Cove volcanics, therefore, occupy approximately the 



same position as those at Middle Hope. It may be mentioned, 



however, that on the road through Kewstoke Woods, in a position 



which seems to be well below the volcanic series, occur fossils 



which unquestionably indicate a much higher level — that marked 



' Higher Beds ' in the foregoing table (p. 148). There is some 



faulting which brings these beds down to their present position. 



(3) Above Kewstoke, Milton Hill. 



Here, again, faulting has complicated the problem. At Kewstoke 

 Steps the limestones are well displayed. There can be no question 

 that they belong to the higher beds. Producti belonging to the 

 giganteus-grou]), Athyrids of the ambigua-type, and abundant 

 Liihostrotion beautifully weathered-out, are conclusive. But shortly 

 below these rocks — assuming that the stratigraphical sequence is 

 unbroken — come the volcanic ash (noted in 1894) and the scattered 

 fragments of lava and breccia. On the southern side of Milton 

 Hill, however, there are two quarries, the beds in which should, 

 taking dips and distances into consideration, overlie the volcanic 

 series. In one of these, a disused quarry, lying to the right of the 

 road from Milton to Kewstoke, just below the crest of the hill 

 on its southern side, the fossils indicate that the beds lie on the 

 same level as those of the mural escarpment above Spring Cove. 

 Chonetes, Streptorhynchus, and Spirifer laminosus, M ; Coy, occur, 

 and a typical Productus Martini, Sow., as also above Spring Cove. 

 The other quarry, which lies farther west, and is now being exten- 

 sively worked, does not afford conclusive evidence. But at the top 

 occurs a coral of the same transitional type as that noted at Spring 

 Cove, which, in Mr. Vaughan's opinion, cannot occur below the 

 very top of the Black-Rock Quarry. In the lower beds of the quarrv 

 occur 



' Streptorhynchus (large resupinate var.), Spirifer cuspidatus, Martin, a small 

 Athyris of the serai n id a-group, and a rather characteristic Athyrids of a transverse 

 Boyssii type.' 



