GREAT OOLITE : CHIPPING NORTOX. 327 
stone with Nerincea, resting on false-badded sandy and oolitic 
limestones (Chipping Norton Limestone). Dark clay occurs here 
and there in crevices of the oolite, and owing probably to the 
effects of dissolution on these sandy limestones, they appear in 
places much broken up and tumbled like some of the " broken "" 
Purbeck Beds. These basement-beds yield Ostrea acuminata and 
O. Sowerbyi ; and in the quarry near the 70th milestone on the 
road from Enstone to Chipping Norton, I obtained from them, 
Amberleya nodosa, Nerincea Eudesi, Astarte, Unicardium, and a 
Crocodilian tooth. A good section of the local basement-beds of 
the Great Oolite, with the Bift-Bed, was exposed in one of the 
quarries west of Swerford, as pointed out to me by Mr. Walford. 
(See p. 159.) 
He has also obtained evidence of slaty beds (like those in the 
railway-cutting at Langton Bridge), about 20 feet beneath the 
surface at Fulwell, south of Enstone. 
We now come to the somewhat complex region of Chipping 
Norton, to which reference has already been made in a chapter 
on the Inferior Oolite (p. 146). This locality, like Enslow 
Bridge and Glympton, has been noted as a place of sepulture of 
some of the giant-bones of Cetiosaurus. Caudal vertebrae of 
this Saurian were for the first time discovered at Chapelhouse,. 
about a mile north-east of Chipping Norton, as early as 1825, by 
John Kingdon ;* but the genus was not named and described 
until 1841, by Owen. 
One of the more noteworthy sections at Chipping Norton is 
that known as the Cetiosaurus Quarry, and Padley's Quarry,, 
where the section which I saw was as follows : 
FT. IN, 
Soil with pebbles of quartz and 
quartzite. 
False-bedded and current-bedded"] 
oolite, pale and close-grained : Tri- \ 
gonia, &c. - - - 1 - ~ 
Brown oolitic limestone, with f 
Modiola, Ostrea acuminata, Pecten, \ 
and Trigonia - j 
Grey shelly clay and yellowish marl, 
Great Oolite 
Inferior Oolite 
(Chipping Norton ( 
full of O. acuminata and 0. Sowerbyi 
Greenish grey and brown shelly clay 
with much " race " and marly layers : 
0. acuminata and 0. Sowerbyi (abun- 
dant) and Modiola . - . 
Ferruginous marly bed in which re- 
mains of Cetiosaurus have been ob- 
tainedf .... 
Brown and pale oolite : sharply jointed 
false-bedded and current-bedded, the 
the lower beds tougher and siliceous 
Limestone). | [Mr. Hudleston notes rolled spines 
(_ of Acrosalenia, fish-teeth, &c.] about 12 
* Phillips, Geol. Oxford, p. 245 ; Ann. Phil. ser. 2. vol. x. p. 229. 
t Owen, Proc. Geol. Soc., vol. iii. p. 457. Mr. Hudleston says that bones have 
been found in blue clay at a higher horizon in this series. Proc. Geol. Assoc., vol. v, 
p. 384. 
