Thecostraca - Balanomorpha - Balanidae
Parent taxon: Balanidae according to B. K. K. Chan et al. 2021
Sister taxa: Acastinae, Amphibalaninae, Archaeobalaninae, Balaninae, Bryozobiinae, Cetolepas, Concavinae, Creusiinae, Emersoninae, Hexacreusiinae, Semibalaninae, Wanellinae
Subtaxa: Austromegabalanus Fosterella Megabalanus Notomegabalanus Paractinobalanus Pseudoacasta Tasmanobalanus
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Chile (1 collection), Mexico (5), United States (1: California)
• Pliocene of Chile (2), Mexico (2), New Zealand (2), Peru (1), Portugal (1), United States (4: California)
• Miocene of Algeria (1), Brazil (1), France (1), French Southern Territories (1), Mexico (2), New Zealand (4)
• Oligocene of New Zealand (1)
Total: 30 collections including 31 occurrences