386 
LOWER OOLITIC EOCKS OF ENGLAND : 
These strata rest on the Northampton Beds, in which term the 
Lower Estuarine Series and Northampton Sand may be included. 
The divisions I. and II. will be noted in some of the sections 
to be described : they may to a certain extent correspond with the 
Upper and Lower Divisions of the Great Oolite elsewhere 
noticed. 
In the neighbourhood of Aynho we meet with very fossiliferous 
beds of the Great Oolite. The white limestones have been 
quarried in Aynho Park, at Souldern, and Croughton. To the 
north-east of Aynho, the following section was noted* : 
FT. 
2 
Great Oolite 
Limestone. 
IN. 


Brown Clay .... 
"~II. Hubby oolite ... 
Whitish, marl, in placea crowded 
with fossils. Cardium siibtrigo- 
num, Isocardia minima, Modiola, 
imbricata, Hyacites, Ostrea 
acuminata, 0. Sowerbyi, and 
Rhynchonella concinna - -40 
I. Brown fissile and false-bedded shelly 
oolite, with clayey galls ; spines 
of Echini - - -12 
Grey marl, with indurated and shelly 
bands - --43 
Brown shelly oolites, current-bedded, 
with spines of Echini and commi- 
nuted shells - -44 
Many other fossils from Aynho have been obtained by Mr. 
Beesley. The beds may be compared with those noted at 
Tadmarton, and again at Kirtlington. 
South-west of Hinton-in-the-Hedges the upper beds of the 
Great Oolite Limestone are worked for road-metal, in a shallow 
quarry which showed the following section : 
Great Oolite 
Limestone. 
"II. White limestone (like White Lias) 
resting on hard grey shelly lime- 
stone, compact and oolitic, with 
Trigonia, Myacites, and Phola- 
domya .... 
FT. IK. 
North-west of Plowmans Furze the beds have been better 
exposed, and the following section was shown : 
Great Oolite 
Limestone. 
II. Bubbly white oolite 
White limestone, 
oolitic : Nerincea, 
Spongiform bodies 
Grey marl - 
FT. 
- about 3 
imperfectly 
Corals, and 
- 2 
- 10 to 1 
_I. Brown shelly oolitic limestone 

IN. 

At Hethe the following section was recorded by Prof. 
Green : t 
See also section by T. R. Polwhele, in Green's Geol. Banbury, p. 18. 
| Geol. Banbury, p. 18. 
