| Liwiidae Temporal range:
| |
|---|---|
| |
| Tariccoia arrusensis, 21 mm, from Sardegna, Italy | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Order: | †Nektaspida |
| Family: | †Liwiidae Dzik et Lendzion, 1988 |
| Genera | |
|
See text. | |
Liwiidae is a family of arthropods in the order Nektaspida. Members are known from the Cambrian and Ordovician periods.