| Suborder: | Goniatitina   | 
| Superfamily: | Neoicoceratoidea   | 
| Family: | Metalegoceratidae   | 
| Subfamily: | Metalegoceratinae   | 
| Genus: | Metalegoceras | 
| Qualifier: | ge | 
| Author: | Schindewolf 1931,p.199   | 
| Lower Boundary: | Asselian--Sakmarian           [ASS--SAK], 294.6 million years   | 
| Upper Boundary: | Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years   |