| 
Suborder:
 | 
Paraceltitina 
 | 
| 
Superfamily:
 | 
Xenodiscoidea 
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| 
Family:
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Pseudotirolitidae 
 | 
| 
Genus:
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Pseudotirolites 
 | 
| 
Species:
 | 
multinodosus | 
| 
Qualifier:
 | 
ss | 
| 
Author:
 | 
	Zhao et al. 1978,p.141	 
 | 
| 
Lower Boundary:
 | 
Pseudosteph./Tap.--Pseudotir./Pleuron., 252.5 million years
 
 | 
| 
Upper Boundary:
 | 
Pseudotir./Pleuron.--Rotodiscoceras beds, 252 million years
 
 |