Astacidea

Astacidea
Temporal range: Middle Permian - present
Adriatic lobster
Crayfish: Austropotamobius pallipes
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Clade: Reptantia
Infraorder: Astacidea
Latreille, 1802
Superfamilies

Astacidea is an infraorder of decapod crustaceans including lobsters (but not "lobsters" such as the spiny lobster etc.), crayfish, and their close relatives.