| Suborder: | Paraceltitina   | 
| Superfamily: | Xenodiscoidea   | 
| Family: | Xenodiscidae | 
| Qualifier: | fa | 
| Author: | Frech 1902,p.   | 
| Lower Boundary: | Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years   | 
| Upper Boundary: | Griesbachian--Dienerian       [GRI--DIE], 250.3 million years   |