| 
Country:
 | 
USA 
 | 
| 
Province:
 | 
Pennsylvania, Erie Co. 
 | 
| 
Locality:
 | 
Howard Quarry 
 | 
| 
Layer:
 | 
lower Conewangom,unrecognized | 
| 
Lower Boundary:
 | 
UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
 
 | 
| 
Upper Boundary:
 | 
UD4A--UD4B: dunkeri Zone base    [15,55], 366.8 million years
 
 | 
| 
Georeference:
 | 
 |