Musacaris
| Musacaris Temporal range:  | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Genus: | †Musacaris Haug et al, 2010 | 
| Species: | †M. gerdgeyeri | 
| Binomial name | |
| †Musacaris gerdgeyeri Haug et al, 2010 | |
Musacaris is an extinct genus of Cambrian arthropod from the Orsten Lagerstätte, formerly synonymous with Martinssonia. It contains only a single species, Musacaris gerdgeyeri.