DISTRIBUTION. 157 
4, Coal-FIELD OF SoutH WaALEs. 


































Mynyddsllwyn Coal 
Blackband With Anthracomya (Phillipsii ?). 
Cockshute or White Rocks 
Upper Pins 
Shale with Soap Vein With Anthracomya Adamsii and plant remains; and with Carbonicola 
aquilina, C. acuta, and ? C. turgida in the Pennypieces which are sup- 
posed to be at about the horizon of the Soap Vein at Ynys-cedwin. 
Black Pins With Carbonicola acuta and plant remains. 
Shale and Ironstone | 
Plant remains. 
Ell Coal | 
Soft Clod Carbonicola turgida. 
Shale, $-Coal With Anthracomya pumila and A. subcentralis. 
Mine over Bydyllog Coal With Athyris planosulcata. 
With Anthracomya senex, A. modiolaris, Naiadites modiolaris, N. quad- 
Darrenpins 
rata, N. carinata, Carbonicola aquilina, and C, ovalis. 
Mine over Engine Coal With Spirifer bisuleatus and Productus scabriculus. 
Yard Coal 
Fire-clay or Ironstone 
Old Coal With Carbonicola acuta and C. turgida. 
Spotted Vein With Spirorbis carbonarius. 
Red Vein With Carbonicola acuta, C. turgida, and other shells. 
With Carbonicola acuta, C. turgida, Naiadites carinata, and Spirorbis 
Blue Vein Shale 4 
carbonarius. 
Bottom Vein With many fish remains. 
Farewell Rock 
Rosser Vein beds, Millstone Grit With a rich marine molluscan fauna. 
