104 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Julie 17, 



so that their true nature is concealed. At the same time, if these 

 Ammonites are thus to be brought as witnesses for the new Liassic 

 theory, what is to prevent the whole of the Upper Lias fossils from 

 being added to the same category ? 



But whatever tale may be told by the Ammonites, the following 

 shells, taken from Dr. Wright's own list, are those which I should 

 consider as characteristic of the Oolite ; yet many of these are from 

 the bottom of the sands ; and, while none of them are Liassic, many 

 of them range through the Great Oolite into the Cornbrash. 



List of Conchifera: (F) Frocester Hill; (N) Nailsworth*. 



Lima bellula, Lycett. F., N., also Great Oolite. 



Pholadomya fidicula, Sow. F., N., Inferior Oolite. 



Gervillia Hartmanni, Miinst. F., N., Inferior Oolite. 



Modiola plicata, Sow. F., N., ranges as high as Cornbrash. 



Trigonia striata, Sow. F., N., Inferior Oolite. 



Perna rugosa, Gold. N., Inferior Oolite. 



Hinnites abjectus, Phil. F., N., Great Oolite. 



Pecten articulatus, Gold. F., Coral Rag. 



Gresslya adducta, Phil. F., N., ) , ,, ; « * , 

 n ,* ,. . j v, xt r both in Cornbrash. 



Gresslya coniormis, Ayass. t ., N., ) 



Myacites tenuistriatus, Ayass, F., N., Inferior Oolite. 



Goniomya angulifera, Sow. F., Great Oolite. 



Astarte excavata, Sow. F., N., Great Oolite. 



Myoconcha crassa, Sow. N., Great Oolite. 



Astarte modiolaris, Desh. N., Inferior Oolite. 



Cypricardia cordiformis, Desh. F., Great Oolite, 



Cardium Hullii, Wright (C. Buckmani, Lycett). F., N., Great 

 Oolite. 



Now as regards this list, it is not a little curious that so many of 

 the species should take so wide a range above, but not one below the 

 disputed ground ; and yet it is on this very account that Dr. Wright 

 prefers, in his metaphorical language, to consider them as " witnesses 

 of no character." At the same time we see how inconvenient it 

 was to have so decidedly a Great Oolite fossil as the Cardium Buck- 

 mani, Lycett, founded on Minchinhampton specimens, in the new 

 Lias list ; and so it is made a new species. f 



Again, on referring to my Cornbrash fossils, I find that out of 7 1 

 species, 45 are common to the Inferior Oolite, and amongst them no 

 less than five forms of Ammonites, as follow : — 



Ammonites Herveyi, Sow Fairford and Siddington. 



„ Brochii, Sow Fairford and Dry Lease. 



„ subradiatus, Sow Fairford. 



* This section of Nailsworth and its fossils were unknown to Dr. Wright when 

 his paper was read before our Society, but they are incorporated in his general 

 list at p. 305, and thus their particular hearing is, as it were, stifled. They 

 were commented upon at the Meeting of the British Association ; after which 

 the list referred to appears to have been altered. 



f In the above list this shell is quoted just as in Dr. Wright's list he. cit. 



