THE LOWER OOLITES NEAR BRISTOL 
159 
Acanthothyris spinosa. 
Aulacothyris carinata. 
Pleurotomaria Palcemon. 
Trigonia costata. 
Ostrea gr eg aria. 
Pecten spinicostatus. 
Magnotia Forhesi. 
Hemicidaris granulosa. ^ 
,, pmtulosa. 
Cidaris Fowleri. 
,, Bouchardi. 
Holectypus hemisphericus . 
Stomechinus higranularis. 
Isastrma explanata. 
Thamnastrma Defranciana, '■ -■ • 
,, Terqmmi. 
Montlivaltia lens. 
These are the highest beds at Dundry, their date is some- 
what uncertain, but there is some evidence that they were 
deposited during the hemerse indicated. 
Again travelling east, until we strike the main road which 
crosses the hill from Bishopsworth to Chewstoke, we have 
a choice of two quarries : one on the north or Bristol side 
of the ridge, and the other on the south or Chewstoke side. 
The former is the classical section from which so many 
beautiful fossils have been obtained, but it has not been 
worked for some years. We therefore choose the one on 
the south of the ridge which exhibits similar beds and is 
still occasionally used. 
The Southern Main Koad Quarry. 
ft. in. 
Coralline limestone, containing a similar suite of 
fossils to those in the top beds in our last section . 5 0 
Equivalent of Freestone . . . . .34 
