| 
Suborder:
 | 
Tornoceratina 
 | 
| 
Superfamily:
 | 
Prionoceratoidea 
 | 
| 
Family:
 | 
Pseudarietitidae 
 | 
| 
Subfamily:
 | 
Pseudarietitinae 
 | 
| 
Genus:
 | 
Paralytoceras 
 | 
| 
Species:
 | 
serratum cf. | 
| 
Qualifier:
 | 
cf | 
| 
Author:
 | 
	Korn 1988,p.217	 
 | 
| 
Lower Boundary:
 | 
DER Ps. westfalicus--Paragattend. patens, 358 million years
 
 | 
| 
Upper Boundary:
 | 
low.Tournais.--mid.Tournais.  [Tn1--Tn2], 357.5 million years
 
 |