Leptolepidae
| Leptolepidae Temporal range:  | |
|---|---|
| Fossil of Leptolepis coryphaenoides | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | †Leptolepiformes | 
| Family: | †Leptolepidae Nicholson & Lydekker, 1889 | 
| Genera | |
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Leptolepidae (also spelt as Leptolepididae) is an extinct family of herring-like stem-teleost fish found throughout the world during the Jurassic. They were among the first fish to possess certain teleost synapomorphies, such as cycloid scales and fully ossified vertebrae.