the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Arthropoda (phylum)
Crustacea (subphylum)
Malacostraca (subclass)
Eucarida (infraclass)
Decapoda (order)
Pleocyemata (suborder)
Astacidea (superfamily)
Astacidae (family)
Pacifastacus leniusculus (species)
signal crayfish (primary common name)
[hide inferior taxa]