| Trigoniulidae | |
|---|---|
|   | |
| Trigoniulus corallinus | |
|  Scientific classification   | |
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Subphylum: | Myriapoda | 
| Class: | Diplopoda | 
| Order: | Spirobolida | 
| Family: |  Trigoniulidae  Cook, 1897  | 
| Diversity | |
| c. 25 genera, 171 species | |
Trigoniulidae, is a family of round-backed millipedes of the order Spirobolida. The family includes 171 species in 25 genera. [1]