Vol. 67.] FROM THE PARADOXIDES BEDS OF COMLEY. 311 



rocks, the absence of calcareous bands being generally a feature of 

 these strata in British areas. 



Mr. J. E. N. Green thought that the Author's researches would 

 throw much light on the succession in the South Welsh Cambrian. 

 In particular, the unconformity demonstrated in Shropshire might 

 prove to be of wide extent, as some years ago the speaker had been 

 led to suspect the existence of a n on -sequence in the middle of the 

 Paradoxidian beds of Pembrokeshire. 



The Author briefly thanked the Fellows for their reception of 

 his paper. He was particularly interested to hear of the signs of 

 unconformity, mentioned by Mr. Green as occurring at the base 

 of the Menevian in South Wales. In reply to Miss Raisin, he said 

 that the lower sandstones of Comley were not absolutely barren, 

 but contained calcareous bands that were fossiliferous. He took 

 the opportunity of emphasizing the fact that these lower beds had 

 been deeply eroded prior to the deposition of the Paradoxidian 

 sediments, the trilobites of which must have inhabited a shore 

 among pebbles and boulders containing the previously fossilized 

 Protolenus-Callavia Fauna. The interval might be compared with 

 that between the Pliocene and the present time. Referring to the 

 remarks of Mr. Withers, the Author agreed that the Paradoxides 

 faunas of Comley are closely related to those of Scandinavia ; while 

 the fauna of the Lower Cambrian has stronger affinities with that 

 of North America. 



