﻿Yol. 66.1 LIMESTONE SOUTH OE THE CRAVEN FAULT. 585 



problems that remained for solution was the relationship of the 

 Pendleside facies to the limestone massif. At the Thornton Quarry, 

 Pendleside Beds apparently succeeded limestones containing an 

 assemblage of the gens of Zaphrentis omaliusi that was only known 

 elsewhere in the C zone of the Bristol district; again, at Elbolton, 

 the Pendleside facies seemed to succeed limestones with Carcino- 

 phijllum and other corals that elsewhere characterized the I\ or 

 lower levels. Hitherto, of course, the Pendleside facies had not 

 been recorded below the top of the D 2 zone, although there seemed 

 to be no valid reason why it should not be found at lower levels. 

 He had listened to the paper with great pleasure, and congratu- 

 lated the Author on the energy and enthusiasm with which he was 

 pursuing his investigations in this remarkably interesting district. 



Mr. G. W. Lamplugh mentioned, with respect to the ' knolls/ 

 that dome-like structures were very prevalent in the Magnesian 

 Limestone between Pleasley and Langwith in Derbyshire. These 

 domes of massive limestone, bordered by flaggy beds, were clearly 

 due to conditions of deposition. They deserved notice in the dis- 

 cussion, although it would be unsafe to affirm positively that they 

 were analogous to the Carboniferous knolls. 



Prof. E. J. Garwood remarked that he had listened to the paper 

 with especial interest, as he had made extensive collections from 

 the district 20 years ago. He commented on the horizons from 

 which the Author had obtained Ghonetes cf. comoides and Caninia 

 subibicina, as these forms only occurred in Westmorland in C, and 

 M'Coy's type-specimen of the latter undoubtedly came from C 2 . 

 He expressed regret that no further light had been thrown by the 

 Author on the cause of the marked change in the character of the 

 fauna on the north and south sides of the Craven Faults. 



The Author, in reply to Prof. Garwood, pointed out that the 

 Chonetes cf. comoides mentioned was apparently the same as that 

 figured by Davidson in pi. xlv of his Monograph of the British 

 Carboniferous Brachiopoda. It accompanied Productus pustulosus 

 and Orthotetes crenistria. The Caninia subibicina ought to be 

 'cf. subibicina,' and had been identified by Mr. R. G. Carruthers. 

 He was much interested in the statement made by Prof. Garwood 

 as to the marked difference in the character of the brachiopod 

 fauna north and south of the faults, and would take care to avail 

 himself of every opportunity for comparing the faunas. 



In answer to Mr. Cosmo Johns, he held that the name ' Pendleside 

 Limestone ' should be applied to the limestone or limestones of very 

 well-marked character which occurred in the Bowland Shales of 

 Phillips and at the base of these shales. It was, however, some- 

 times used for another limestone in the Grassington District, 

 which, in his opinion, was at a different horizon. In connexion 

 with the knolls, he did not deny that there was a considerable 

 thickening of the shell and coral deposits, in fact he had called 

 special attention to that thickening as the beds were traced east- 

 wards from Eylstone and Cracoe. Owing to the lateness of the 

 hour, he asked to be excused from dealing with the other points, 

 raised and thanked the Fellows for their reception of his paper. 



