Beckius
| Beckius Temporal range:  | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | Salmoniformes | 
| Family: | Salmonidae | 
| Subfamily: | Coregoninae | 
| Genus: | †Beckius David, 1946 | 
| Species: | †B. plicatus | 
| Binomial name | |
| †Beckius plicatus David, 1946 | |
Beckius is an extinct genus of marine whitefish known from the Early Oligocene of California. It contains a single species, B. plicatus, known only from a single fossilized scale from the Tumey Formation, a lens of the Kreyenhagen Shale. The scale was found to resemble those of Coregonus, although significantly different in many ways, leading to its classification as a new genus of Coregoninae.
The genus name was later reused in 1992 for a scarab beetle from New Guinea, until it was discovered to be preoccupied; the beetle was thus renamed Debeckius.