JOURNAL 
OF THE 
GEOLOGICAL SOCIETY OF DUBLIN. 
The Society met on the 14th of March, 1855, on which occasion 
the following Paper was read. 
ON LOCALITIES OF FOSSILS OF THE CARBONIFEROUS LIMESTONE OF 
IRELAND. BY JOHN KELLY, ESQ. 
The carboniferous limestone is perhaps the best developed and the 
best defined of the rocks of our island. The formation of which the 
limestone forms a part has a line or junction of sedimentary un- 
conformability at its base, and another at the top, where the New Red 
Sandstone overlies it. In the Carboniferous formation, between those 
two junctions, all the beds are parallel to each other, or in one bundle, 
if I may so term it. Since, therefore, there is such an opportunity, 
it appears incumbent on our Geological Society to furnish a good 
account of this division of the formation, toward which I hope the 
present paper will be of use. 
Many of the members of this Society are aware that the fossils 
of the carboniferous limestone of Ireland, including the slates which 
lie beneath it, and form a part of the formation, have been described 
by Mr. Frederick M‘Coy, late Professor of Geology at the Queen’s 
College, Belfast; and a Synopsis of them printed at the instance of 
Mr. Griffith in 1844; but all will see with regret that the usual 
practice in all such works has been departed from in this case, and 
that no locality is given in that book for any one fossil. 
As this Synopsis is now the most complete descriptive account 
of our Irish carboniferous limestone fossils, and is likely to continue 
Vol. VII. Part 1 . B 
