Lepadomorpha

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Crustacea
Superclassis: Multicrustacea
Classis: Thecostraca
Subclassis: Cirripedia
Superordo: Thoracica
Superordine: Thoracicalcarea
Subordo: Lepadomorpha
Familiae: Lepadidae - Oxynaspididae - Poecilasmatidae
References

Briggs, D.E.G., Sutton, M.D., Siveter, D.J. & Siveter, D.J. 2005. Metamorphosis in a Silurian barnacle. Proceedings of the Royal Society (B), 272: 2365–2369. DOI: 10.1098/rspb.2005.3224 Reference page.

Vernacular names
беларуская: Марскія качачкі
magyar: Kacsakagylók
中文: 茗荷亚目