| Country: | Germany   | 
| Province: | Rhenish Mountains   | 
| Locality: | Suttrop, Kattensiepen quarry   | 
| Layer: | annulata Black Shales | 
| Lower Boundary: | P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years   | 
| Upper Boundary: | UD4A--UD4B: dunkeri Zone base    [15,55], 366.8 million years   | 
| Georeference: |  |