Thoracica
| Thoracica | |
|---|---|
 |
|
| Semibalanus balanoides | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Maxillopoda |
| Subclass: | Thecostraca |
| Infraclass: | Cirripedia |
| Superorder: |
Thoracica Darwin, 1854 |
| Orders | |
|
|
Thoracica is a superorder of crustaceans which contains the most familiar species of barnacles found on rocky coasts, such as Semibalanus balanoides and Chthamalus stellatus. They have six well-developed limbs, and may be either stalked or sessile. The carapace is heavily calcified. The group includes free-living and commensal species.
This article follows Martin and Davis in placing Thoracica as a superorder of Cirripedia and in the following classification of thoracicans down to the level of families:
Superorder Thoracica Darwin, 1854
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