| Thoracica | |
|---|---|
| |
| Semibalanus balanoides | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Thecostraca |
| Subclass: | Cirripedia |
| Infraclass: | Thoracica Darwin, 1854 |
| Orders[1] | |
| |
Thoracica is an infraclass 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.[2]
- ^ WoRMS (2019). Thoracica. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1107 on 2019-01-16
- ^ Robert D. Barnes (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 706. ISBN 978-0-03-056747-6.