Diademodontidae
| Diademodontids Temporal range: Middle Triassic,   | |
|---|---|
| Skull of the diademodontid Diademodon tetragonus | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Clade: | Synapsida | 
| Clade: | Therapsida | 
| Clade: | Cynodontia | 
| Clade: | †Gomphodontia | 
| Family: | †Diademodontidae Haughton, 1925  | 
| Genera | |
Diademodontidae is an extinct family of Triassic gomphodonts. The best-known genus is Diademodon from South Africa. Titanogomphodon from Namibia may also be a member of Diademodontidae. The Chinese genera Hazhenia and Ordosiodon have also been included in the family, but were more recently identified as baurioid therocephalians. Remains of a diademodontid were reported in the Early-Middle Triassic Fremouw Formation in Antarctica, but that specimen was later referred to the trirachodontid Impidens.