02 EELATIONS TO OTHER BRITISH DEPOSITS. 



(b) Next we come to the Bargate stone, and here we find this 

 fast increasing resemblance of the beds to the Upware type is 

 abruptly broken off. The Bargate series consists of sand and 

 layers of concretionary limestone very scantily furnished with fossil 

 remains, but these have been perseveringly collected by Mr Meyer 

 to the number of 84 species, 24 of which are fully named. Amongst 

 these 16 species are common to our coprolite beds, namely: — ■ 



Verticillites anastomosans, Mant. Terebratella oblonga, Sby. 



Pecten orbicularis, Sby. „ Davidsoni, Walker. 



„ Dutemplei, d'Orb. „ Fittoni, Meyer. 



,, Raulinicma, d'Orb. ,, llenardi, Lam. 



Plicatula Carteroniana, d'Orb. „ trijida, Meyer. 



Exogyra Tombeckiana, d'Orb. Waldheimia tamarindus, Sby. 



Terebratulina striata, Wahl. „ Juddii, Walker. 



Terebratula depressa, var. chrysa- „ Wanklyni, Walker. 



lis, Lam. 



It is to the Goclalming pebble bed therefore, that we must look 

 for the most exact representative of the Upware Phosphatic Nodule 

 Bed. 



Now the above lists of species require more than a mere 

 addition, and simple calculation of their proportionate numbers 

 in order to see their full meaning; and their detailed considera- 

 tion will strongly emphasise the facts gathered in our first over- 

 sight. The list from the Atherfield clay beds consists of species of 

 little value for the work of detailed correlation, consisting as it 

 does for the most part of types with wide ranges in the Lower 

 Cretaceous series. And the same remark applies, though less 

 thoroughly, to the middle sand group; still, we have here some of 

 the special Upware types such as Terebratula Meyeri and Rhyncho- 

 nella Upwarensis, and the presence of Terebratula sella and T. prce- 

 longa are to my mind important, for these species do not occur in 

 the overlying pebble series, and Bargate stone. 



With the pebble bed, the value of the fossil evidence is es- 

 pecially intensified as we take each species into consideration. 

 There is also the same preponderant development of the Brachio- 

 pods, including several of the most typical Upware forms. 



In the list from the Bargate stone the species Terebratella 

 Davidsoni and T. trijida are of importance, and my conclusion 

 from the whole is that at Upware and Brickhill we have the repre- 

 sentatives of all the Godalming beds from the Upper part of the 



