FAUNAL SUCCESSION OF THE UPPER BERNICIAN 645 



Fig. 4. Koninckophyllura magnificum, Thorn, and Nich. 

 Dryburn Limestone (IVa.) 



4a. ,, ,, a less specialized variant. 



Dryburn Limestone (IVa.) 



5. Aulophj'llum sp. 



(= Cyclophyllum nr, pachyendothecum, Thom.) 

 Great Limestone, Harlow Hill (IVa.) 



6. A Clisiophylloid Cyafhophyllum. 



Robsheugh Limestone (IVb.) 



7. Diphyphyllum subibicinum (M'Coy). 



Redesdale Limestone (I.) 



8 & 8a. Diphyphyllum dianthoides (M'Coy). 



(= Koninckophyllum interruptum, Nich. and Thom.) 

 Dryburn Limestone (IVa.) 



9. Carcinophyllum Q, Vaughan. 

 Redesdale Limestone (I.) 



10. A Clisiophylloid Lithostrotion X 1.5. 



Redesdale Limestone (I.) 



11. Densiphyllum costatum (M'Coy) X 2. 



Six Yards Limestone, Snab Leazes Quarries, near Alnwick 

 (HI.) 



Plate II, 

 Upper Bernician Producti. 



Fig. I. Productus a, pedical valve X .85. 

 Fourlaws Limestone (II.) 



2. Productus /jj pedical valve X .9. 

 Fell Top Limestone (IVc.) 



Plate III. 



Fig. I. Saccanmiina carteri, Brady x .66. 



Acre Limestone, Scremerston (III.) 



2. Girvanella encrusting corals and encrinital columns x .9. 

 Oxford Limestone (II.) 



