218 W. Keeping and C. S. Middlemiss— 
List oF Drewton Ketutoway Rock Fossi1s. 
Belemnites Owenti, Pratt. Modiola pulchra, Phill. 
Ammonites modiolaris, Lind. Trigonia Rupellensis, D’ Orb. 
»»  Duneani, Sby. Cucullea, sp. 
»  Kenigi, Sby. »,  corailina, Damon. 
»,  Gowerianus, Sby. Area. 
», Marie, D’Orb. Cardium Crawfordii, Leck. 
Turbo sulcostomus, Phill. »  cognatum, Phill. 
‘ sp. Isocardia. 
Cerithium Cullent, Leck. Cyprina (2 or 3 species). 
EME SDs Astarte (small ribbed species). 
Alaria bispinosa, Phill. »  wungulata, Lyc. (°) 
Pleurotomaria. Unicardium depressum, Phill. (?) 
Gryphea bilobata, Sby. Corbicella (ovalis, Phill. ?) 
Pecten demissus, Phill. Pholadomya ovulum, F. and M. (?) 
»» lens, Sby. »  Heraultii, Ag. 
», jfibrosus, Sby. (?) Gressleya peregrina, Phill. 
5, large ribbed species. Goniomya v-scripta, Sby. 
Avicula Braamburiensis, Phiil. Anatina undulata, Sby. 
5,  meguivalvis, Sby. Myacites decurtatus, Phill. 
Perna rugosa, Goldt. »,  sp., and other doubtful bivalves. 
Pinna mitis, Phill. Rhynchonella socialis, Phill. 
Modiola (cylindrical species). Terebratula ornithocephala, Sby. 
Lying along the surface of the upper rock bed, the eastern half 
of the cutting shows a thin dark homogeneous clay about 10 ft. thick, 
the representative of the Oxford clay. Since, however, this clay 
where seen, is completely covered by surface deposits which lie with 
the dip, its original thickness may have been considerably more ; 
and it doubtless extends under the level ground to the east. Fossils 
in this clay are scarce, but we obtained Belemnites Owenii, B. abbre- 
viatus, and Gryphea dilatata, sufficient to identify the horizon of the 
rock. A Plesiosaurus paddle-bone was also found, and fossil wood 
was not infrequent. 
The surface-beds exposed in this cutting are very thick on the 
east side of the ridge. Fragments of a stiff Boulder-clay occur at 
the summit, and two beds, a coarse chalk gravel above and a fine 
yellow sand below, occupy the east end of the cutting and sink with 
it to the level of the next embankment. 
The embankment hides the junction between the Oxford and 
Kimmeridge Clays, the next exposure, after an interval of 1188 ft., 
being a dark, almost black clay slightly shaley, underlying the Red 
Chalk. After dipping away out of sight, it reappears in the cutting 
further east by a slight bend in an upward direction. It is probably 
the Kimmeridge Clay, but characteristic fossils were not obtained. 
The Red Chalk is for the most part rubbly, hard and nodular, the 
lumps being often veined with a grey-green marking. 
The following section was well exposed : feet inches 
Nodular Ged Chalk 235) or) 258) nas boa, eoaiecne an 
Fate Nodular Chalk’ 7 cos, cs. , ce Secs oagiece mmm 
Clayey Red Challe i... h6 ake a) Ba Ee 
Gray Nodular Chalk ... oes bath see Renee em 
Ried C Hallet icsin viene Den 
Nellow=ereew Clay |v. 2) cade ese che dees 0 9 
Duchiousthed Clay ce) tice een ase eins 
a> 
We) 
