Balanomorpha

The Balanomorpha are an order of barnacles, containing familiar sessile shelled acorn barnacles of the seashore. The order contains these families:^[3][2]

• Austrobalanidae Newman & Ross, 1976
• Balanidae Leach, 1817 (acorn barnacles)
• Bathylasmatidae Newman & Ross, 1971
• Catophragmidae Utinomi, 1968
• Chelonibiidae Pilsbry, 1916 (turtle barnacles)
• Chionelasmatidae Buckeridge, 1983
• Chthamalidae Darwin, 1854 (star barnacles)
• Coronulidae Leach, 1817 (whale barnacles)
• Elminiidae Foster, 1982^[4]
• Pachylasmatidae Utinomi, 1968
• Pyrgomatidae Gray, 1825 (coral barnacle)
• Tetraclitidae Gruvel, 1903
• Waikalasmatidae Ross & Newman, 2001
• † Pachydiadematidae Chan et al., 2021

Balanomorpha
Semibalanus balanoides
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Thecostraca
Subclass:	Cirripedia
Infraclass:	Thoracica
Superorder:	Thoracicalcarea
(unranked):	Sessilia
Order:	Balanomorpha Pilsbry, 1916 [1]
Superfamilies[2]
Balanoidea Leach, 1817 Chthamaloidea Darwin, 1854 Coronuloidea Leach, 1817 Elminioidea Chan et al., 2021 † Pachydiadematoidea Chan et al., 2021