.6o8 



FAUNAL SUCCESSION OF THE UPPER BERNICIAN 



Faunal List (continued) : — 



Naticula tabulata (Phill.) 

 Pleurotomaria carinata, Sow. 

 Pleurotomaria decipiens, M'Coy. 

 Plat'yschisma zonites, M'Coy. 

 Orthoceras gesneri (Sow.) 

 Actinoceras giganteum (Mart.) 

 Ephippisceras bilobatum (Sow.) 

 Nautilus ingens (Mart.) 

 Nautilus nodiferus, Armstrong. 

 Sohenscheilus cf. crassiventer, 



de Kon. 



Thyringoceras hibernicum, Foord. 

 Vestinautilus cariniferus (Sow.) 

 Vestinautilus cf. crateriformis. 

 Phillipsia derbiensis (Mart.) 

 Phillipsia gemmulifera (Phill.) 

 Phillipsia scabra, H. Woodward. 

 Grifflthides longispinus, Portl. 

 Psammodus rugosus, Ag. 

 Petalo?lus hastingsii^ Owen. 

 Cladodus. 



Notes : — The Fourlaws Limestone is a richly fossiliferous 

 bed ; cephalopods and gasteropods are niunerous. All the 

 forms in the above list are from the Waterfalls quarry near the 

 village of Redesdale. 



The faunal lists of the Fourlaws and Redesdale Limestones 

 and the Redesdale Ironstone Shale have been considerably 

 augmented by the addition of genera and species supplied by 

 Mr. John Dunn's fine collection of Redesdale fossils. I have 

 completed the list of the lamellibranchs from the list recently 

 drawn up by Dr. Wheelton Hind. 



- The Woodend and Dun Limestone. 



The Woodend Limestone=The Hobberlaw Limestone = 

 The Redesdale Limestone. 



Geographical Distribution. 



The outcrops of the Woodend and Dun Limestones form 

 with the Carbonaceous beds a belt girdling the Cheviots on 

 the east and north, but separated from the volcanic mass by 

 the Tuedian beds. Approaching the Tweed this belt bends 

 round to the east and strikes out to sea south of Tweedmouth. 



Stratigraphical Character. 



Both compact beds; the Woodend is about lo or 12 feet in 

 thickness, the Dun about 6 feet, 



