Organism
Animalia
Bilateria
Protostomia
Ecdysozoa
Arthropoda
Crustacea
Malacostraca
Eumalacostraca
Eucarida
Decapoda
Pleocyemata
Brachyura
[Archaeobrachyura]
[Brachyrhyncha]
[Cancridea]
[Dromiacea]
[Oxyrhyncha]
[Oxystomata]
Calappoidea