On the Paleontology of County Dublin. 179 
List oF Fosstz LocALITIES IN LOWER CoAL MEASURE SHALES, 
56. <A little north of the village of Garristown. 
19. Townland of Tobergreggan ; junction-beds mentioned in previous 
list. 
57. Do., one mile and a-half W.S.W. of Garristown. 
58. Townland of Westown ; quarry a little 8. of the wood. 
59. 3 of Knockbrack ; small quarry in the glen. 
60. % of Kitchenstown ; in a ditch 8S. of the road. 
61. 4 of Belgee ; quarry a little 8S. of the cross-roads. 
21. + of Balrickard ; junction-beds mentioned in previous 
list. 
62. 3 of Courtlough ; quarry close to road about three quar- 
ters of a mile N.W. of ‘ Man-of-War ;” upper part 
coal measures. 
24, " of Loughshinny ; junction-beds mentioned in previous 
lists. 
List oF Fossins FROM CoAL MEASURE SHALES AT THE ABOVE 
PLACES, 
PLANTS. 
Calamites canneformis, . ioe i} 55 
Plant stems (undetermined), SOG, Oe 
Mo tuusca : Conchifera. 
Aviculopecten papyraceus, . pe DOU DG xO a. 
a variabilis, . epee Dee Oe 
Lunulicardia (species undetermined), 58. 
Posidonomya Becher, eae Ge 02, 
os membranacea .-. OGD 58, 697 62. 
Cephalopoda. 
Goniatites sphericus, . : s | 56, DFSGB 459" 61. 
-Orthoceras Steinhauerii, . 1 06, OTe 
- (species undetermined), 56, 57, 58, 62. 
EXCHINODERMATA. 
Crinoidea (stems and joints), . 958, 59. 
CRUSTACEA. 
Dithyrocaris (species undetermined), 58. 
The Secondary and Tertiary Rocks are entirely absent from this 
district, with the exception of the Pleistocene or Glacial Drift, which 
extends over the northern portion. Southwards of Malahide this 
more ancient deposit, called the “ Lower Boulder Clay,”* “ becomes 
covered by the sand and gravel deposit which on the higher 
* Explanation to sheets 102 and 112, 2nd edition (1875), p. 67. 
