IN THE ANGLO-PARIS BASIN 31 



their correlation is shown in text -fig. 3. The sequence is, however, thinner than at 

 Brasted. 



The 9 feet 2 inches (2794 m.) of Division 2, excluding bed (i), contains a typical 

 spathi Subzone fauna, the ' upper dentatus-spathi nodule bed ' being represented in 

 2 (vii). Bed (i) is the highest level in which Protanisoceras (P.) moreanum (Buvignier) 

 occurs, and this is taken to mark the top of the lyelli Subzone sediments. The under- 

 lying 11 feet (3-353 m.) of Division 1 represents the uppermost part of the lyelli 

 Subzone as developed at Horton Hall, Sussex (p. 35). However, the typical develop- 

 ment of this Subzone occurs within beds 13-15 of the Gault-Lower Greensand 

 Junction. Bed 15 has yielded the following ammonites : 



Protanisoceras (P.) moreanum (Buvignier), Beudanticeras laevigatum (J. de C. 

 Sowerby), B. sanctaecrucis (Bonarelli), B. albense Breistroffer, Hopiites (H.) dentatus 

 (J. Sowerby), H. (H.) bullatus Spath, H. (H.) baylei Spath, Lyelliceras lyelli (d'Or- 

 bigny), Brancoceras versicostatum (Michelin non d'Orbigny, nee Douville), ' Oxytropi- 

 doceras ' cf. evansi (Spath). 



Bed 13 has yielded Beudanticeras laevigatum, Hopiites (H.) spp., ? Otohoplites sp. 

 ind., Lyelliceras sp. Beds 10-12 contain Hopiites (1 sohoplites) spp., including H. (I.) 

 eodentatus (Casey 1961a ; 543). 



(b) Tandridge 



The Coney Hill Sand-pit, Barrow Green (TQ 37755250), situated about 3^ miles 

 WSW. from Squerryes, has already been described by the author (1963a ; 39). It is 

 apparent that the sequence has become thinner (text-fig. 3). Between Tandridge 

 and Buckland, a distance of 9 miles, there is no information concerning the sequence 

 at the outcrop. 



(c) Buckland 



The Buckland Sand & Silica Co's pit at Buckland (TQ 231512) was described by 

 the author in 1958 (1958 ; 149-152), however, a certain amount of revision is now 

 necessary. The sequence (text-fig. 13) is not unlike that of Ford Place, a fact already 

 recognised in the Gault-Lower Greensand Junction Beds by Casey (1961a ; 552). 

 Whether the eodentatus and lyelli Subzones are present in the upper part of the 

 Gault-Lower Greensand Junction as at Ford Place is at present unknown (p. 20). 

 The spathi Subzone is represented within beds 2-6. Bed 2, tentatively classified 

 with the benettianus Subzone in 1958, was later included in the spathi Subzone (Owen 

 1963a ; 47-48). It contains the same ammonites as Division 1 (ii) at Ford Place. 

 Bed 3 is the obvious correlative of 1 (iii), and Bed 4 is the equivalent of Division 2, 

 the ' upper dentatus-spathi nodule bed '. Bed 4 has yielded the best preserved fauna 

 yet known from this horizon, and the effect of strong erosive currents on the sea- 

 bottom is demonstrated by the effaced nature of the upper surface of the nodules. 



Beds 5-1 1 probably represent Division 3 at Ford Place but the character of the clay 

 is very different. In general the sediments are gritty clays with intercalated beds of 

 ferruginous marlstone, and the fossils have shells replaced by pyrite. Beds 5 and 6 



