| Ischnoptygmatidae | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | incertae sedis |
| Superfamily: | †Subulitoidea |
| Family: | †Ischnoptygmatidae Erwin, 1988 |
Ischnoptygmatidae is an extinct family of fossil sea snails, marine gastropod mollusks in the clade Caenogastropoda.