Name of Stratigraphic unit and correlation with Stage Slices:

Vitrival-Bruyere
Darriwilian
Katian
3


Name refers to the following Stratigraphic units:



Opinion Reference

Owens, R. M. & Servais, T.
2007
The Ordovician of the Chondroz Inlier, Belgium: Trilobites from the southeastern margin of Avalonia


Opinion is based on (if other than Time Slice):