Name of Stratigraphic unit and correlation with Stage Slices:

Phragmodus polonicus
Dw2
Dw3
2

Name refers to the following Stratigraphic units:

Opinion Reference

Edwards, C. T. & Saltzman, M. R.
2014
Carbon isotope (δ13C carb) stratigraphy of the Lower-Middle Ordovician (Tremadocian-Darriwilian) in the Great Basin, western United States: Implications for global correlation

 

Opinion is based on (if other than Stage Slice: