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.