| Heptasaurus Temporal range:   | |
|---|---|
|   | |
| Underside of the skull of Heptasaurus cappelensis | |
|  Scientific classification   | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Order: | † Temnospondyli | 
| Suborder: | † Stereospondyli | 
| Clade: | † Capitosauria | 
| Family: | † Mastodonsauridae | 
| Genus: | † Heptasaurus  Säve-Söderbergh, 1935  | 
| Type species | |
| †Heptasaurus cappelensis (Wepfer , 1923 [originally  Mastodonsaurus cappelensis])  | |
Heptasaurus is an extinct genus of Triassic capitosaurian temnospondyl within the family Mastodonsauridae. [1] [2]