DISTRIBUTION. 



209 



Generalised Section of the Carboniferous Formation of the West of Scotia ml. 



8. Goal Measures. — With a Spirorbis bed in upper part, Lingula mytiloides, Labyrinthodonts, 

 Crustaceans, Scorpions, Eurypterids, Myriopods and Annelids scarce ; Cyprids and Fish- 

 reinains abundant at parts ; Plants not common except in upper beds. 



Volcanic Series. — Cuts out part of Coal Measures and Millstone Grit. 



7. Millstone Grit. — Feebly developed. 



6. Upper Limestone Series. — With few Corals, Cephalopods and Fish-remains ; Gastropods, 

 Brachiopods, Polyzoa, Crinoids, Foraminifera, and Sponge-remains abundant ; Conodonts 

 rare. 



5. Goal Series. — With a Naiadites-heA. 



4. Ironstone Series. — With Fish-remains, Lingula, Naiadites and freshwater Ostracoda. 



3. Lower Limestone Series. — With abundance of Corals, Crinoids, Brachiopods, Polyzoa, Ostracoda, 

 Annelids, Foraminifera and Sponge-remains ; Fishes, Cephalopods, and Conodonts scarce. 



Great Volcanic Series. — Cuts out a large part of the Calciferous Sandstone Series and Lower Limestone 

 Series. 



Calciferous Sandstone Series : 



2. Tipper Part. — Shales and Cement stones with Cyprids, Plants, Fish-remains and Spirorbis. 

 1. Lower Part. — Sandstones with unfossiliferous Cornstones, and Footprints of a large animal. 



Notes. — No. 8 at Drumpark near Coatbridge there is a stratum containing Marine fossils. 



Nos. 6 and 3. — There is a Coal bed a short distance under each of the principal beds of 

 Limestone in both the Upper and Lower Series. A freshwater Ostracoda-bed occurs in 

 No. 3. 

 No. 5. — The Naiadites-bed in this Series contains no other kind of shells. Oolitic structure is 

 rarely seen in the Limestones. 



The Lowick Limestones, from which the Rev. E. Jenkiuson made his Collection, 

 now in the Sedgwick Museum, Cambridge, comprise limestones between the Dun 

 Limestone, or the equivalent of the Redesdale Limestone and the Dyburn Lime- 

 stone, which probably is the representative of the Main Limestone of Weardale. 





Redesdale 

 Limestone. 



Four Laws The Main 

 Limestone. Limestone. 



Lowick. 



Limatidina desquamata, M'Coy, sp 



Streblopteria Ixvhjata, M'Coy 



I'll riiiopecten (jranosus, Sow., sp 



concavus, M'Coy, sp 



,, Dumo ntianus, de Kon., sp. . 

 Aviculopecten semicostatus, Portl., sp 



X 

 X 



X 



X 



X 

 X 



; X X X X X X X 





,, interstitialis, Phill., sp 





