†unranked clade Mesonychia (mesonychian)
Alternative spelling: Mesonychoidea
Parent taxon: Acreodi according to R. Tabuce et al. 2011
Sister taxa: Andrewsarchus, Mondegodon, Oxyclaenus, Triisodontidae, Khashanagale, Prolatidens
Subtaxa: Didymoconidae, Hapalodectidae, Mesonychidae, Simidectes, Wyolestes
Ecology: scansorial omnivore