| Calmoniidae | |
|---|---|
|   | |
| Metacryphaeus caffer fossil | |
|  Scientific classification   | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | † Trilobita | 
| Order: | † Phacopida | 
| Suborder: | † Phacopina | 
| Superfamily: | † Acastoidea | 
| Family: | † Calmoniidae  Delo, 1935  | 
Calmoniidae is a family of trilobites from the order Phacopida, suborder Phacopina, superfamily Acastoidea. [1]
It contains the following genera: [2]