| Petrobius | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Archaeognatha |
| Family: | Machilidae |
| Genus: | Petrobius |
| Species | |
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See text | |
Petrobius is a genus of jumping bristletails in the family Machilidae. Many of these primitive insects are restricted to rocky shorelines.