Classification
Some authorities regard Cirripedia as a full class or subclass, and the orders listed above are sometimes treated as superorders. In 2001, Martin and Davis placed Cirripedia as an infraclass of Thecostraca and divided it into six orders:
Infraclass Cirripedia
- Superorder Acrothoracica
- Order Pygophora
- Order Apygophora
- Superorder Rhizocephala
- Order Kentrogonida
- Order Akentrogonida
- Superorder Thoracica
- Order Pedunculata
- Order Sessilia
Read more about this topic: Barnacle