304 THE STRUCTURE AND SUCCESSION AT 



ft. in. 



argillaceous shale 4 



limestone . — 8 



sandstone 3 



argillaceous shale 15 



limestone — 4 



red marl 2 



green marl 5 



red arenaceous shale 6 



arenaceous shale 20 



sandstone 6 



marl 6 



clay 2 



coal — 4 



cla^^ and shale 1 3 



coal 1 



shale 8 



sandstone 6 



arenaceous shale 5 



sandstone 6 



argillaceous shale (erect trees and many 



plant remains) • 6 



clay 2 



coal (Sydney Main seam) 6 



marl 15 



sandstone 20 



arenaceous shale 3 



sandstone 8 



shale 8 



limestone 2 6 



marl and chy 3 



bituminous shale (with Naiadites) — 2 



argillaceous shale 17 



bituminous shale {with. Naiadites) — 1-5 



argillaceous shale 6 



sandstone 6 



argillaceous shale 15 



sandstone 15 



red marl 2 



shale 15 



