| Cyrtoneritimorpha Temporal range: Early Ordovician–Late Permian | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Gastropoda | 
| Clade: | Neritimorpha | 
| Clade: | †Cyrtoneritimorpha | 
| Families | |
Cyrtoneritimorpha is a clade of fossil sea snails, marine gastropod mollusks within the clade Neritimorpha.
This order contains two extinct families: Orthonychiidae and Vltaviellidae.