Family Austrobalanidae Newman and Ross 1976 (barnacle)
Thecostraca - Balanomorpha - Austrobalanidae
Parent taxon: Coronuloidea according to B. K. K. Chan et al. 2021
Sister taxa: Bathylasmatidae, Chelonibiidae, Coronulidae, Tetraclitidae
Subtaxa: Austrobalanus
Ecology: stationary epifaunal suspension feeder
Distribution: found only at Eocene Erratics: Mt. Discovery, McMurdo Sound (Eocene of Antarctica)