512 F. R. Cowper Reed — Geology of Waterford. 



Ampyx rostratus, Sars, Lichns hihernieus. 



Asaphiis gigas. Jtemopleurides Colbii. 



Calymene brevicapitata. Trimtcleus concentricus. 



Cybele verrucosa. Orthis calUgramma. 



Harpes Dorani. Flectambonites sericea. 

 Illcetms Bowmani. 



The prominent feature of the fauna at Tirnaskea, as at Newtown 

 Cove, is the trilobites, but the almost complete absence of mollusca 

 at the latter place is a striking difference. 



It is the Balcletchie fauna which bears the closest resemblance. 

 Messrs. Nicholson and Etheridge ^ recoi'd the following Newtown. 

 Cove species from the Balcletchie beds : — 



Agnostus agnostiformis. Lichas hibernicus. 



Asaphus gigas. Phacops Brongniarti. 



Cheirurus gelasinosus. Remopleurides laterispinifer. 



Cybele verrucosa. Turrilepas scotica. 

 Illcenus Bowmani. 



Several species of Ampyx are also recorded. 



Professor Lapworth - mentions the following species from the 

 Balcletchie beds, all of which occur at Newtown Cove : — 



Asaphus gigas. Orthis calUgramma. 



Fhacops Brongniarti. Flectambonites quinquecostata. 



Remopleurides dorsospinifer. F. sericea. 



The genus Barrandia, which seems confined to the Lower Bala, is 

 also mentioned. Of special importance do I consider the occurrence 

 of the restricted species Asaphus gigas and Cheirurus gelasinosus. 

 The former species is only found in America in the homotaxial 

 Hudson Kiver beds and the Trenton Limestone. Glyptocystites 

 Logani ^ is also a Trenton Limestone species. The occurrence of some 

 peculiar species [Harpes Dorani, H. Flanagani, Barrandia JPortlocki, 

 Bemopleiirides platyceps, Trinucleus hibernicus) gives the fauna the 

 usual special Irish stamp. 



The presence of typical Lower Bala species and genera, and the 

 very close affinity of the fauna to that of the Balcletchie beds, 

 demonstrate unmistakably the horizon of the Newtown Cove beds ; 

 and the palseontological evidence is found to be confirmed by the 

 stratigraphical as shown in the field. 



The succession, therefore, of the fossiliferous beds near Tramore 

 is as follows : — 



(4) Shales, mudstones, and impure limestones of Newtown Cove (= greater portion 



of the Balcletchie Beds). 

 (3) Impure sandy limestones of Tramore Bay cliffs, including towards the hase 



the Quillia and Pickardstown beds ( = lower portion of the Balcletchie Beds 



and portion of the Benan Conglomerate). 

 (2) Black slates of Carrigaghalia, etc. ( = Glenkiln Shales). 

 (1) Unfossiliferous dark slates. 



The fauna and succession of the beds at Newtown Head, near 

 Passage, will be described on a subsequent occasion, as well as 

 the other fossiliferous Ordovician beds in County Waterford. 



1 Mon. Girv. Silur. Foss., 1879, pp. 228-9. 



2 Q.J.G.S., vol. xxxviii, 1882, p. 1)86. 



^ Billings, Canad. Organ. Eem., 1858, dec. iii, p. 57, pi. iv, fig. 1. 



