682 GEOLOGY AXD PALEONTOLOGY OF SOIXIE OP TEE [DeC. I912, 



everywhere in the Midlands conformable to the Coal Measures, 

 and contained Carboniferous plants. In the Claverley ]3oririg 

 situated near Enville, which is the tj'pical area of the Salopian 

 Permian, all the plants, of which some specimens were exhibited 

 by the Director of the Geological Survey, are Carboniferous forms ; 

 and one of them {Keuropteris lieterophylla) is a characteristic 

 Middle Coal-Measure species. He would ask Mr. Ternon to state 

 on what evidence he based the unconformity between the lime- 

 stone-conglomerate series with Permian fossils and the underlying 

 Keele Beds with Carboniferous plants. 



Baron P. jSTopcsa commented on the fact that one of the foot- 

 prints described by Mr. Hardaker seemed to indicate an animal 

 having a lizard-like body, and he suggested that such footprints 

 might be produced by a Proterosaurus-\\^% reptile. If such were 

 the case, it would point to a Permian age for the rocks under 

 consideration. 



Dr. C. A. Matley mentioned that his investigations of the 

 Keuper rocks of Warwickshire had brought him to the western edge 

 of the ground shown on Mr. Vernon's map, and enquired whether 

 that Author had been able to confirm the position of the lines shown 

 on the Geological Survey map as separating the Permian from the 

 Trias. The speaker had not found the western boundary always 

 well-defined, while the boundary-fault seemed, at Maxstoke Priory, 

 to be farther west than the Geological Survey map indicated. He 

 also enquired as to the nature and horizon of the silicified tree- 

 stems found in the Permian at Allesley, examples of which, with 

 the woody structure beautifully preserved, he had found in the 

 glacial drift of the Keuper Marl country to the south-west. 



The Presidext (Dr. A. Steahan) agreed with the opinion 

 expressed by previous speakers, that a considerable advance had 

 been made by the Authors towards determining the limit between 

 Permian and Carboniferous, and in thus removing what had long 

 been a blot upon British geology. From his own recollection of 

 the ground, he believed that there was a continuous and con- 

 formable sequence from the lowest Coal Measures of Warwickshire 

 up into the Keele Beds. He, therefore, asked for some further 

 details respecting the section in which the Haunchwood Sandstone 

 was said to rest un conformably upon upturned Middle Coal 

 Measures. 



Mr. Yeexon", in reply, pointed out that the unconformity at the 

 base of the Permian was inferred from the fact that 75 per cent, of 

 the pebbles in the Corley Conglomerates consist of Carboniferous 

 Limestone. Purther, the lowest beds of the Corley Conglomerates 

 can be shown to rest upon different horizons of the Keele Beds : 

 thiis, near Exhall, the Keele Beds are only about 650 feet thick, 

 but near Coventry, in the borehole at Whitmore Park they reach 

 977 feet, while in the Keresley borehole they attain a thickness of 

 1413 feet. 



In answer to Dr. Matley, he stated that the silicified plants from 

 Allesley occur in the Permian, and are probably allied to Cordaites. 



