FAUNAL SUCCESSION OF THE UPPER BERNICIAN 597 



V. 



FAUNAL SUCCESSION, AND COMPARISON OF THE SAME 



WITH THAT OF THE SOUTH-WEST PROVINCE. 



The fauna throughout the Calcareous Group closely agrees 

 with the fauna of the Dibunophyllum-Zone, the highest of the 

 palaeontological divisions into which the Carboniferous Lime- 

 stone series of the South-West Province (Bristol area) has 

 been divided by Dr. Vaughan.* 



The Bernician sequence yields a faunal succession which is 

 capable of being divided into several marked horizons by 

 means of corals and brachiopods, whilst a number of these 

 horizons can be grouped together as characterised by the 

 presence or abundance of some particular form or forms. 



* A. Vaug-han, "Tlie Carboniferous Limestone Series of the Avon Gorge." Proc. 

 Bristol Nat. Soc, 1906, ser. 4,, vol. i, pt. ii, p. 74. 



(See Table 2, p. 598). 



