﻿42 MR. T. F. SIBLY OlS THE FATJNAL SUCCESSION IN THE [Feb. I908, 



side of the railway, below MillerVDale Lime- Works. The base 

 of the upper toadstone and the fossiliferous uppermost beds of D^ 

 are here exposed. (2) The large quarries, north of the railway, west 

 of Miller's-Dale Station. The base of the upper toadstone is again 

 exposed and the underlying limestones are well seen. (3) The 

 cutting at the eastern entrance to Chee-Tor Tunnel. The lower 

 toadstone and the limestones overlying it are here exposed. 



The massive white limestones which underlie the lower toadstone 

 form the magnificent precipice of Chee Tor. The uppermost beds 

 of this series are poorly exposed on the hill over Chee-Tor Tunnel, 

 while the lower beds are exposed in cuttings west of that tunnel. 



Farther westward, on the Buxton branch of the railway, lower 

 beds, comprising much dark-grey or black limestone, less thickly 

 bedded, are seen in the cuttings. Topleypike Quarry affords a good 

 exposure of these beds. 



The low^est beds seen are exposed in cuttings between Topleypike 

 Quarry and Pig-Tor Tunnel. These are grey limestones, thickly or 

 thinly bedded. The exposures are separated by considerable gaps. 

 The beds undulate to within a short distance of the tunnel, where a 

 persistent westerly dip sets in. 



A large quarry, opened up on the north side of the Manchester 

 branch of the railway, shows a fine, if somewhat inaccessible, section 

 of a considerable thickness of limestones which lie below the white 

 limestones of Chee Tor. 



The duplicate section of this subzone, afforded by the cuttings 

 and adjacent quarries between Pig-Tor Tunnel and Buxton, in the 

 western limb of the anticline, does not present any features of 

 special interest. The section extends up to the limestones im- 

 mediately overlying the lower toadstone. The thick series of 

 massive white limestones, underlying this toadstone, is exposed in 

 the Ashwood-Dale quarries and in the cuttings farther west. At 

 Ashwood-Dale Tunnel the lower toadstone is seen : west of this 

 point the limestones are considerably disturbed, and the end of the 

 section is soon reached. 



III. The Faunal Succession. 



DiBUNOFRYLLUM-TiOne. 



Di= Subzone of Dibunophyllum 6. 



Faunal list: — 



Corals : 



Syringopora cf. distans, Fischer. | (?) Petalaxis TortlocJci, Ed. & H. 



Syringapora cf. genicidata, Phil. i Biphyphyllum, including B. laiesep- 



Syringopora cf. reticulata, Goldf. j tatuon, M'Coy, and Cyathophylloid 

 Alveolites septosa (Flem.) and var. forms. 



depressa (Flem.). i CyathopJiyllum aff. MurcMsoni (?) 



Lithostrotion aff. irregulare (Phil.), j Ed. & H. 



Lithostrotion junceum (Flem.). I Bihunophyllum (cf. D. 0,Vaughan). 



Lithostrotion Martini, Ed. «& H, I Carcinophyllum aff. 9, Vaughan. 



