Family Sironidae Simon 1879 (harvestman)
Arachnida - Opiliones - Sironidae
Parent taxon: Cyphophthalmi according to J. A. Dunlop et al. 2013
See also Dunlop and Giribet 2003
Sister taxa: Foveacorpus, Stylocellidae
Subtaxa: Siro
Ecology:
Distribution:
• Eocene of Germany (1 collection), the Russian Federation (1)
Total: 2 collections each including a single occurrence