| 
Suborder:
 | 
Goniatitina 
 | 
| 
Superfamily:
 | 
Dimorphoceratoidea 
 | 
| 
Family:
 | 
Dimorphoceratidae 
 | 
| 
Subfamily:
 | 
Glyphiolobinae | 
| 
Qualifier:
 | 
fs | 
| 
Author:
 | 
	Ruzhencev & Bog. 1969,p.61	 
 | 
| 
Lower Boundary:
 | 
DER Go alpha 2--Go alpha 3  [11.60], 332.3 million years
 
 | 
| 
Upper Boundary:
 | 
U   Halian--Bloydian, Brentwood base, 313 million years
 
 |