^ol. 55-] 



BEDDED EOCKS OF COtTNTT WATERFORD. 



■37 



yielded the following fossils, with numerous bands of MonticuUpora 

 pttropoUtana : — 



Phacops Jamesii^ Portl. 



Asaphus sp. 



Orthis calligramma, Dalm. 



Orthisina (?) crispa, M'Coy. 

 Porambonitei intercedens var. filosa 

 (M'Coy), very abundant. 



!N'earer the extremity of Dunabrattin Head, on the north side 

 of the western cove, more decomposed and softer calcareous beds 

 yielded the following fossils, which indicate the upper part of 

 the Tramore Limestones, as in Newtown Cove : — 



Asaphus sp. 



CheiruTus gelasinosus, Portl. 



Illoenus sp. 



Encrimirtis fallax, sp. no v. 



Phacops Brongniarti, Portl. 



Trinucleics concentricus, Eaton (?). 



Trinucleus hibernicus. Reed. 

 Primitia miindula, Jones. 

 Turrihpas cf. scotica, Nich. & Etli. 

 Orthis sp. 



Plectainbo7iites sericea, Don. 

 Stenopora (1) fibrosa, Goldf. 



The dip of the beds here varies from 20° to 30° south-eastward, 

 and they have suffered several small displacements by faults. 



In the Geological Survey Collection at Dublin are the following 

 fossils from Dunabrattin Head ; but, as they are not labelled according 

 to horizons, it is purely on lithological grounds that we can assign 

 them to the different stages : — 



Stage 1. (Black Argillaceous Limestone.) 



Asaphus {Ptychopyge 1) radkdiis 

 (Salter), var. 



rectifrons, Portl. 



Haughtoni, sp. nov. ? 



Amphus {Ptychopyge) sp. 

 IllcBnus Bailyi, Salt. 

 Orthisina (?) crispa, M'Coy. 



Phacops Jamesii, Portl. 



■ truncato-caudatus, Portl. 



Megalaspis sp. y. 

 Illmnus Davisi, Salt. 

 Lie has sp. 

 Plectambonites sericea, Sow. 



Ampyx sp. 



Calymene brevicapitata, Portl. 



Megalaspis sp. y. 



Stage 2. 



Plectambonites sp. 

 Orthisina (?) crispa, M'Ooy. 



sp. 



Orthis hforaia, Schloth. 

 Echznosphcera sp. 



Stage 3. 



Cheirurus gelasinosus, Portl. 

 Trinucleus hibernicus, Eeed. 



On the rocky slopes on the west side of the extreme point, the 

 beds consist of fine-grained, tough, grey calcareous slates, highly 

 cleaved, considerably faulted, and nearly devoid of organic remains. 

 Towards the eastern side of the headland, where the cliffs are per- 

 pendicular, the beds dip in some places 60° south-eastward. 



[e] Knockmahon. 



The tall cliffs along the straight coast-line in the townland of 

 Knockmahon consist of a long succession of unfossiliferous, purplish, 

 black, greyish, and mouse- coloured earthy slates and soft mudstones, 



