Balanomorpha
The Balanomorpha are an order of barnacles, containing familiar sessile shelled acorn barnacles of the seashore. The order contains these families:
- Austrobalanidae Newman & Ross, 1976
- Balanidae Leach, 1817
- Bathylasmatidae Newman & Ross, 1971
- Catophragmidae Utinomi, 1968
- Chelonibiidae Pilsbry, 1916
- Chionelasmatidae Buckeridge, 1983
- Chthamalidae Darwin, 1854
- Coronulidae Leach, 1817
- Elminiidae Foster, 1982
- Pachylasmatidae Utinomi, 1968
- Pyrgomatidae Gray, 1825
- Tetraclitidae Gruvel, 1903
- Waikalasmatidae Ross & Newman, 2001
- † Pachydiadematidae Chan et al., 2021