MOOEE — A33XOEirAL SECOXDAEY DEPOSITS. 531 



A comparison of the foregoing list with that of Brocastle Tvill 

 show that there are only 18 species common to the two locahiies^ 

 although at Brocastle there are in the whole nearly 200. Five of 

 the above are corals. This very marked distinction is sufficient to 

 show that the deposits must occupy different horizons. 



At Sutton as well as at Brocastle the organic remains are most 

 abundant where the Liassic deposits come in more immediate contact 

 ■with the Carboniferous Limestone. Thus the corals at Sutton are 

 chiefly found at the base of the series, and with some of the other 

 remains become rare or entirely absent in the higher portion of the 

 series. 



An examination of the great thickness of the beds above the Sutton 

 Stone prcper will show the peculiar conglomeratic and lithological 

 characters they present at their outcrop, to which allusion has been 

 made. This condition disappears in their passage to the east. The 

 stone is very dense and intractable, and the organisms very difficult 

 to extract. From immediately above the Sutton Stone I obtained 

 the following : — 



Ammonites angulatus, rather abun- 

 dant. 

 Grjplipea incm'va, rather abmidant. 

 Cypricardia, sp. 

 Cardita multicostata. 

 Lima gigantea. 



duplicata. 



Ostrea arietis. 



Osti'ea Hassica. 



Pholadomya ambigua« 



Pecten dispar ? 



Phasianella. 



Cerithium nodulosum, 3Ioori 



Trochus. 



ThecosmiHa Michehni. 



Following the coast-line from Sutton, under the Southerndown 

 chffs, the presence of multitudes of Gryplicm incurva, at about high- 

 water-mark, sufficiently attests the Liassic age of the beds in this 

 direction. Beneath them are very pecuhar, grittj", thickly bedded 

 limestones, on the top of which, though rarely, and in the beds 

 below them seaward, Liassic remains are still found. 



On the Dunraven side, above the gritty beds just referred to, are 

 some very ragged or cavernous beds, from which were obtained the 

 following : — 



Ammonites angulatus. 

 Belemnites acutus. 

 Grjphaa incurva. 

 Lima gigantea. 



duplicata. 



Astarte, small. 

 Caixhnia, sp. 

 Modiola producta, Terq. 

 Gervilha? 



Pecten ThiolHeri ?, Martin. 

 Plicatula Hettangiensis. 

 Cardita multicostata. 

 Melania crassilabrata, Terq. 

 Duuravenensis, Moore. 

 Littorina clathrata, Desk. 

 Tun'itella Desbayesii, Terq. 

 Pleurotomaria, cast. 

 Elvsastrasa Moorei, Duncan. 



The Ehjsastrcea Moorei is found also under the Sutton Stone. 

 Below the beds with the above remains, to the east, is a very fine 

 Liassic section, at the base of which, at low water, great numbers of 

 Montlivaltice may be noticed on the waterworn surfaces of the beds, 

 and also sections of large Cerhldadce. The Lias in this direction 

 has fewer fossils than towards Southerndown and Sutton. 



c. Tlie Ammonites -Bucklandi heels. — Leading down to the beach 



2o2 



