This article relies largely or entirely on a single source .(October 2025)  | 
| Legnonotus | |
|---|---|
|   | |
| †Legnonotus krambergeri from the Triassic of Bergamo, Italy. | |
|  Scientific classification   | |
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Clade: | Ginglymodi | 
| Order: | † Semionotiformes | 
| Family: | † Macrosemiidae | 
| Genus: | † Legnonotus  Egerton, 1854  | 
Legnonotus is an extinct genus of prehistoric bony fish. [1]