| Leptolepidae Temporal range:   | |
|---|---|
|   | |
| Fossil of Leptolepis coryphaenoides | |
|  Scientific classification   | |
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | † Leptolepiformes | 
| Family: | † Leptolepidae  Nicholson & Lydekker, 1889  | 
| Genera [1] [2] | |
Leptolepidae (also Leptolepididae) [3] 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. [1]