Family Hydrochidae Thomson 1859 (water scavenger beetle)
Insecta - Coleoptera - Hydrochidae
Parent taxon: Hydrophiloidea according to C. Y. Cai et al. 2022
Sister taxa: Cretotaenia, Epimetopidae, Georissidae, Helophoridae, Hydrophilidae, Hydrophilopsia, Laetopsia, Sinosperchopsis, Spercheidae
Subtaxa: none
Ecology:
Distribution:
• Cretaceous of the Russian Federation (2 collections)
Total: 2 collections including 3 occurrences