Subfamily Petrobiinae Kaplin 1985 (jumping bristletail)
Insecta - Archaeognatha - Machilidae
Parent taxon: Machilidae according to W. T. Zhang et al. 2018
See also Hädicke et al. 2014
Sister taxa: Gigamachilis, Lepismachilis, Machilinae, Machilis chlamydophora, Onychomachilis, Praemachilis
Subtaxa: Petrobius
Type: Petrobius
Ecology:
Distribution:
• Eocene of Poland (1 collection), the Russian Federation (1)
Total: 2 collections each including a single occurrence