Achelata
| Achelata Temporal range:  | |
|---|---|
| The phyllosoma larva is characteristic of the Achelata (drawing by Haeckel) | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Malacostraca | 
| Order: | Decapoda | 
| Suborder: | Pleocyemata | 
| Clade: | Reptantia | 
| Infraorder: | Achelata Scholtz & Richter, 1995 | 
| Families | |
The Achelata is an infra-order of the decapod crustaceans, holding the spiny lobsters, slipper lobsters and their fossil relatives.