Helochelydridae
| Helochelydridae Temporal range:  | |
|---|---|
| Helochelydra nopcsai skull | |
| Shell of Naomichelys | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Reptilia | 
| Clade: | Pantestudines | 
| Clade: | Testudinata | 
| Clade: | Perichelydia | 
| Family: | †Helochelydridae Nopsca, 1928 | 
| Genera | |
| See text | |
| Synonyms | |
| Solemydidae Lapparent and Murelaga 1997 | |
The Helochelydridae are an extinct family of stem-turtles known from fossils found in North America and Europe spanning the Early to Late Cretaceous.