Classification
Biota [regio]Animalia [regnum]
Arthropoda [phylum]
Phylum Arthropoda contains the following taxa:
Arachnida [classis]
Branchiopoda [classis]
Canadaspidida [ordo]
Insecta [classis]
Leanchoilia [genus]
Malacostraca [classis]
Marrella [genus]
Maxillopoda [classis]
Merostomata [classis]
Sidneyia [genus]
Trilobita [classis]
Waptiida [ordo]