| Posticobia norfolkensis | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Tateidae |
| Genus: | Posticobia |
| Species: | †P. norfolkensis |
| Binomial name | |
| †Posticobia norfolkensis (Sykes, 1900) | |
Posticobia norfolkensis is an extinct species of freshwater snail, an aquatic gastropod mollusc in the family Tateidae. This species was endemic to Norfolk Island.
