Visean
Kasimovian
Time-equivalent reference successions
Plasma mass spectrometry
Lowermost Moscovian fusulines
Well-constrained biostratigraphic framework
Cantabrian Zone
Tonstein
Carboniferous successions
Ash-fall layers interbedded
Megaand microflora data
Carboniferous ash layers
LA-ICP-MS
Ash layers
