Thecostraca - Balanomorpha - Balanidae
Parent taxon: Balanidae according to B. K. K. Chan et al. 2021
Sister taxa: Acastinae, Amphibalaninae, Archaeobalaninae, Balaninae, Cetolepas, Concavinae, Creusiinae, Emersoninae, Semibalaninae, Wanellinae
Subtaxa: Austromegabalanus Fosterella Megabalanus Notomegabalanus Tasmanobalanus
Type: Megabalanus
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Cape Verde (2 collections), Chile (1), Mexico (6), Peru (3), United States (5: California)
• Pliocene of Chile (2), Mexico (3), New Zealand (2), Peru (1), Portugal (1), United States (1: Florida)
• Miocene of Belgium (1), Brazil (3), French Southern Territories (1), Indonesia (1), Mexico (2), New Zealand (4), United States (2: California)
• Oligocene of New Zealand (1), Slovenia (1)
• Eocene of Indonesia (1)
Total: 44 collections including 45 occurrences