Family
Porcelliidae Zittel, 1895
List of species
1. Gotlandiella contraria (Lindström, 1884) | Sheinwoodian
3. Pernericirrus lindstroemi Frýda, Ebbestad et Frýdová, 2018 | Ludfordian
Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Gastropoda |
| Subclass | Archaeogastropoda |
| Superfamily | Porcelloidea |
| Family | Porcelliidae |
| Subfamily | Agnesiinae |