Type	Region
	Layer	1,90 m above Actinopteria Shales
	Layer	12,60 m above "first greywacke"
	Layer	15,50 m above "first greywacke"
	Layer	17,90 m above Actinopteria Shales
	Layer	2,20 m above Actinopteria Shales
	Layer	27,40 m above Actinopteria Shales
	Layer	28,20 m above Actinopteria Shales
	Layer	4,50 m below Actinopteria Shales
	Layer	4,70 m above Actinopteria Shales
	Layer	8,40 m above Actinopteria Shales
	Layer	U.Visé-L.Namur. Section