Name of Stratigraphic unit and correlation with Stage Slices:

Normalograptus extraordinarius
Hi1
Hi1
1

Name refers to the following Stratigraphic units:

Opinion Reference

Husinec, A. & Bergström, S. M.
2014
Stable carbon-isotope record of shallow-marine evaporative epicratonic basin carbonates, Ordovician Williston Basin, North America

 

Opinion is based on (if other than Stage Slice: