| 
Suborder:
 | 
Tornoceratina 
 | 
| 
Superfamily:
 | 
Prionoceratoidea 
 | 
| 
Family:
 | 
Prionoceratidae 
 | 
| 
Subfamily:
 | 
Prionoceratinae 
 | 
| 
Genus:
 | 
Balvia 
 | 
| 
Subgenus:
 | 
Kenseyoceras | 
| 
Qualifier:
 | 
gy | 
| 
Author:
 | 
	Selwood 1960,p.171	 
 | 
| 
Valid:
 | 
Balvia Lange,1929   [TAX3005 ] | 
| 
Lower Boundary:
 | 
UD6B--UD6C1 Kamptoclym. endogona base, 362.4 million years
 
 | 
| 
Upper Boundary:
 | 
UD6E--UD6F:Cym.nigra--A.prorsum  [19,40], 360 million years
 
 |