190 PROCEEDINGS COTTESWOLD CLUB 1908 
Zigzagiceras claustprocerum (S. Buckman),” which would 
suggest a zzgzag date. If so, then the Axorrz-Clays are 
zigzag or a little later. The occurrence of Zigzagiceras 
procerum (Seebach) in the Fullers’ Earth of the neigh- 
bourhood of Bath, brings that portion of the deposit 
in which it occurs into line with bed 8 of Munier-Chalmas, 
and about completes the correlation which was initiated 
on the echinoid evidence. 
Stomechinus bigranularis gives its name to an “assise” 
in Normandy, but in the Cote d’Or it is Collyrites ringens 
that is sufficiently abundant to attract attention and cause 
its name to be utilized as a designation for the beds. 
Collyrites ringens and Collyrites ovalis are common 
fossils in the “ Top-Beds” of Dorset, but unfortunately as 
yet neither their mutual stratigraphical relationships nor 
the precise hemerz in which they lived have been ascer- 
tained. Further correlation is therefore inadvisable, but 
it may be taken for certain that the Collyrites-ringens- 
Beds of the Céte d’Or correspond either to our inter- 
Truellet-zigzag or Zigzag-Beds. 
21 AUG. 1908 
1 See Proc. Cotteswold Nat. F. C., vol. v., pt. 2 (1869), p. 172. 
