SYSTEMATIC LIST OF LOWER PALAZOZOIC FOSSILS. 
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142 
143 
144 
145 
145 
* See note at foot of page 336. 
Genera and Species, with the localities represented by the 
numbers of the preceding List, under each 
Geological Group. 
CERATIOCARIS (continued). 
— solenoides (M°Coy). 
Upper Ludlow, 18. 
— tumbonata (Salt. Sp.) 
Lower Ludlow, (147). 
Wenlock shale, (147). 
Upper Bala, 103—63. 
Bala Group, 82. 
TRINODUS. 
— agnostiformis (M°Coy). 
Upper Bala, 220. 
— tarda (Bar. Sp.) 
Upper Bala, 220. 
DIPLORHINA. 
— triplicata (Hawle and Corda). 
Upper Bala, 197. 
HARPES. 
— parvulus (M°Coy). 
Bala Group, 266. 
HARPIDELLA. 
— megalops (M°Coy). 
Wenlock limestone, 91. 
Upper Bala, 182. 
TRINUCLEUS. 
Caractacit (Murch.) 
Caradoc sandstone, 120—118. 
Caradoc shale, 52. 
Upper Bala, 7—156—146—217—70 
—242—1058—219—154—1538—76. 
— — Var. elongatus (Port.) 
Upper Bala, 217. 
— gibbifrons (M°Coy). 
Caradoc sandstone, 120. 
Bala Group, 66. 
Upper Bala, 107—250—7—205—30 | 
ae ee | 
—74—85—1038—34. 
Upper Tremadoc slate, 251. 
— latus (Portk.) 
Upper Bala, 2830—103—1 67—160— | 
27—220—197. 
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337 
Genera and Species, with the localities represented by the 
numbers of the preceding List, under each 
Geological Group. 
TRINUCLEUS (continued). 
— radiatus (Murch.) 
Upper Bala, 85. 
Upper Tremadoce slate, 251. 
TRETASPIS. 
— fimbriata (Murch. Sp.) 
Upper Bala, 197—30—28. 
— seticornis (His. Sp.) 
Upper Bala, 7—76—220. 
Lower Bala, 180. 
AMPYX. 
— latus (M°Coy). 
Upper Bala, 30. 
— nudus (Murch. Sp.) 
Upper Bala, 30—260—250—197. 
— parvulust (Forbes). 
Bala Group, 47. 
OGYGIA. 
— Buchi (Brong. Sp.) 
Upper Bala, 30—197—260—141— 
164. 
— radians (M°Coy). 
Upper Bala, 197. 
BARRANDIA. 
— Cordai (M°Coy). 
Upper Bala, 30. 
LICHAS. 
— subpropinqua (M°Coy). 
Upper Bala, 62. 
— laxata ? (M°Coy). 
Upper Bala, 220. 
ACANTHOPYGE. 
— Anglica (Bey. Sp.) 
Wenlock limestone, 91. 
TROCHURUS. 
— nodulosus (Salt. Sp.) 
Upper Bala, 211. 
ACIDASPIS. 
— Brighti (Murch ) 
Wenlock limestone, 91. 
Upper Bala, 19a. 
[rasc. 11.] 
+ Not described owing to the imperfection of the specimen. 
x 
